Name: Marcos Giron
Country: USA
Birthdate: 24.07.93, 30 years
ATP ranking: 51
TOP ranking's position: 44 (19.02.24, 1000 points)
Points: 995
Prize money: 3708842 $
Matches total: 642
Win: 369
%: 57.48 %
Country: USA
Birthdate: 24.07.93, 30 years
ATP ranking: 51
TOP ranking's position: 44 (19.02.24, 1000 points)
Points: 995
Prize money: 3708842 $
Matches total: 642
Win: 369
%: 57.48 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 10/10 | 4/6 | 2/3 | 4/1 | 0/0 | 0/0 | 0/0 |
| 2023 | 32/30 | 17/15 | 7/6 | 5/5 | 0/0 | 3/4 | 0/0 |
| 2022 | 23/31 | 11/13 | 3/9 | 6/5 | 0/0 | 3/4 | 0/0 |
| 2021 | 33/24 | 12/10 | 5/5 | 11/6 | 0/0 | 5/3 | 0/0 |
| 2020 | 27/18 | 12/8 | 5/5 | 10/5 | 0/0 | 0/0 | 0/0 |
| 2019 | 49/26 | 29/12 | 5/6 | 10/5 | 0/0 | 5/3 | 0/0 |
| 2018 | 29/26 | 25/21 | 0/0 | 4/5 | 0/0 | 0/0 | 0/0 |
| 2017 | 41/27 | 36/19 | 4/3 | 1/5 | 0/0 | 0/0 | 0/0 |
| 2016 | 17/7 | 12/3 | 0/0 | 5/4 | 0/0 | 0/0 | 0/0 |
| 2015 | 38/24 | 35/22 | 0/0 | 2/1 | 1/1 | 0/0 | 0/0 |
| 2014 | 34/17 | 28/14 | 0/0 | 6/3 | 0/0 | 0/0 | 0/0 |
| 2013 | 23/9 | 20/6 | 3/2 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2012 | 2/5 | 2/5 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2011 | 7/10 | 3/7 | 2/2 | 0/0 | 0/0 | 2/1 | 0/0 |
| 2010 | 4/8 | 4/8 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2009 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 369/273 | 250/170 | 36/41 | 64/46 | 1/1 | 18/15 | 0/0 |
| perc. % | 57.48 % | 59.52 % | 46.75 % | 58.18 % | 50 % | 54.55 % | 0 % |
Marcos Giron / scheduled / last
| no matches found |
Marcos Giron form / surface: Hard
Marcos Giron / surface: Hard
| 20.03.24 | 1st round | Dominik Koepfer | Marcos Giron | 4-6, 6-1, 6-4 |  | match details |  Miami | Hard |
| 06.03.24 | 1st round | Thanasi Kokkinakis | Marcos Giron | 6-3, 7-5 | | match details | Indian Wells | Hard |
| 21.02.24 | 2nd round | Casper Ruud | Marcos Giron | 6-1, 6-0 | | match details |  Los Cabos | Hard |
| 20.02.24 | 1st round | Marcos Giron | Taro Daniel | 6-4, 7-5 |  | match details | ||
| 17.02.24 | 1/2 | Taylor Harry Fritz | Marcos Giron | 7-68, 6-2 | | match details | Delray Beach | Hard |
| 16.02.24 | 1/4 | Marcos Giron | Patrick Kypson | 6-4, 6-4 | | match details | ||
| 14.02.24 | 2nd round | Marcos Giron | Adrian Mannarino | 6-0, 6-75, 6-1 | | match details | ||
| 13.02.24 | 1st round | Marcos Giron | Emilio Nava | 6-4, 7-65 | | match details | ||
| 16.01.24 | 1st round | Jack Draper | Marcos Giron | 6-4, 3-6, 4-6, 6-0, 6-2 | | match details |  Melbourne | Hard |
| 08.01.24 | 1st round | Daniel Altmaier | Marcos Giron | 7-65, 6-2 | | match details |  Auckland | Hard |
| 21.10.23 | 1/2 | Ben Shelton | Marcos Giron | 6-72, 7-65, 6-4 | | match details |  Tokyo | Hard |
| 20.10.23 | 1/4 | Marcos Giron | Felix Auger Aliassime | 6-1, 6-4 | | match details | ||
| 18.10.23 | 2nd round | Marcos Giron | Casper Ruud | 6-3, 6-4 | | match details | ||
| 16.10.23 | 1st round | Marcos Giron | Yoshihito Nishioka | 7-614, 4-6, 6-1 | | match details | ||
| 15.10.23 | qual. | Marcos Giron | Yasutaka Uchiyama | 6-3, 6-2 | | match details | ||
| 14.10.23 | q 1 | Marcos Giron | Kaichi Uchida | 6-4, 6-3 | | match details | ||
| 07.10.23 | 2nd round | Jannik Sinner | Marcos Giron | 7-67, 6-2 | | match details |  Shanghai | Hard |
| 04.10.23 | 1st round | Marcos Giron | Daniel Elahi Galan | 6-4, 6-2 | | match details | ||
| 23.09.23 | 2nd round | Arthur Rinderknech | Marcos Giron | 7-62, 6-4 | | match details | Chengdu | Hard |
| 21.09.23 | 1st round | Marcos Giron | Alexander Bublik | 7-66, 6-3 | | match details | ||
| 28.08.23 | 1st round | Alejandro Davidovich Fokina | Marcos Giron | 6-4, 6-4, 6-2 | | match details | New York | Hard |
| 22.08.23 | 2nd round | Michael Mmoh | Marcos Giron | 6-3, 6-4 | | match details | Winston-Salem | Hard |
| 12.08.23 | q 1 | Diego Sebastian Schwartzman | Marcos Giron | 6-4, 6-4 | | match details | Cincinnati | Hard |
| 10.08.23 | 3rd round | Tommy Paul | Marcos Giron | 6-3, 6-2 | | match details |  Toronto | Hard |
| 09.08.23 | 2nd round | Marcos Giron | Holger Rune | 6-2, 4-6, 6-3 | | match details | ||
| 08.08.23 | 1st round | Marcos Giron | Emil Ruusuvuori | 7-64, 7-66 | | match details | ||
| 06.08.23 | qual. | Marcos Giron | Radu Albot | 6-3, 6-1 | | match details | ||
| 05.08.23 | q 1 | Marcos Giron | Nick Chappell | 6-4, 3-6, 6-2 | | match details | ||
| 31.07.23 | 1st round | Radu Albot | Marcos Giron | 6-3, 5-7, 7-5 | | match details | Washington | Hard |
| 23.03.23 | 1st round | Cristian Garin | Marcos Giron | 6-4, 2-6, 6-4 | | match details | Miami | Hard |
| 10.03.23 | 2nd round | Frances Tiafoe | Marcos Giron | 6-2, 6-2 | | match details | Indian Wells | Hard |
| 08.03.23 | 1st round | Marcos Giron | Aleksandar Kovacevic | 6-3, 7-5 | | match details | ||
| 27.02.23 | 1st round | Michael Mmoh | Marcos Giron | 7-63, 6-1 | | match details | Acapulco | Hard |
| 17.02.23 | 1/4 | Miomir Kecmanovic | Marcos Giron | 7-65, 6-3 | | match details | Delray Beach | Hard |
| 15.02.23 | 2nd round | Marcos Giron | Matija Pecotic | 6-3, 6-3 | | match details | ||
| 14.02.23 | 1st round | Marcos Giron | Ben Shelton | 6-4, 6-4 | | match details | ||
| 16.01.23 | 1st round | Daniil Medvedev | Marcos Giron | 6-0, 6-1, 6-2 | | match details | Melbourne | Hard |
| 12.01.23 | 1/4 | Cameron Norrie | Marcos Giron | 6-1, 6-75, 6-2 | | match details | Auckland | Hard |
| 11.01.23 | 2nd round | Marcos Giron | Jeff Wolf | 6-4, 6-4 | | match details | ||
| 10.01.23 | 1st round | Marcos Giron | Federico Coria | 6-75, 6-4, 7-5 | | match details | ||
| 04.01.23 | 2nd round | Alexei Popyrin | Marcos Giron | 4-6, 6-4, 6-3 | | match details | Adelaide | Hard |
| 01.01.23 | 1st round | Marcos Giron | Richard Gasquet | 7-65, 6-76, 7-5 | | match details | ||
| 25.09.22 | fin | Brandon Nakashima | Marcos Giron | 6-4, 6-4 | | match details | San Diego | Hard |
| 24.09.22 | 1/2 | Marcos Giron | Daniel Evans | 6-3, 7-5 | | match details | ||
| 23.09.22 | 1/4 | Marcos Giron | James Duckworth | 7-65, 6-3 | | match details | ||
| 21.09.22 | 2nd round | Marcos Giron | Tomas Martin Etcheverry | 6-4, 6-3 | | match details | ||
| 30.08.22 | 1st round | Frances Tiafoe | Marcos Giron | 7-60, 6-4, 6-3 | | match details | New York | Hard |
| 17.08.22 | 2nd round | Roberto Bautista Agut | Marcos Giron | 6-3, 6-3 | | match details | Cincinnati | Hard |
| 15.08.22 | 1st round | Marcos Giron | David Goffin | 6-3, 6-4 | | match details | ||
| 14.08.22 | qual. | Marcos Giron | Fabio Fognini | 7-69, 7-5 | | match details | ||
| 13.08.22 | q 1 | Marcos Giron | Denis Kudla | 6-3, 6-2 | | match details | ||
| 09.08.22 | 1st round | Roberto Bautista Agut | Marcos Giron | 7-65, 6-3 | | match details | Montreal | Hard |
| 07.08.22 | qual. | Marcos Giron | Alexei Popyrin | 6-4, 6-710, 6-1 | | match details | ||
| 06.08.22 | q 1 | Marcos Giron | Jason Murray Kubler | 7-64, 6-3 | | match details | ||
| 02.08.22 | 1st round | Nick Kyrgios | Marcos Giron | 6-3, 6-2 | | match details | Washington | Hard |
| 25.07.22 | 1st round | Soon-Woo Kwon | Marcos Giron | 7-63, 4-6, 7-5 | | match details | Atlanta | Hard |
| 24.03.22 | 1st round | Marton Fucsovics | Marcos Giron | 6-3, 6-4 | | match details | Miami | Hard |
| 10.03.22 | 1st round | Lorenzo Musetti | Marcos Giron | 6-3, 7-5 | | match details | Indian Wells | Hard |
| 24.02.22 | 1/4 | Stefanos Tsitsipas | Marcos Giron | 6-3, 6-4 | | match details | Acapulco | Hard |
| 23.02.22 | 2nd round | Marcos Giron | Pablo Carreno-Busta | 6-77, 6-4, 7-64 | | match details | ||
| 22.02.22 | 1st round | Marcos Giron | John Millman | 7-63, 2-0, John Millman - retired | | match details | ||
| 17.02.22 | 2nd round | John Millman | Marcos Giron | 6-3, 7-66 | | match details | Delray Beach | Hard |
| 15.02.22 | 1st round | Marcos Giron | Tennys Sandgren | 7-5, 6-3 | | match details | ||
| 17.01.22 | 1st round | Rafael Nadal | Marcos Giron | 6-1, 6-4, 6-2 | | match details | Melbourne | Hard |
| 10.01.22 | 1st round | Jordan Thompson | Marcos Giron | 6-4, 6-2 | | match details | Sydney | Hard |
| 05.01.22 | 1st round | Ricardas Berankis | Marcos Giron | 7-5, 6-4 | | match details | Melbourne | Hard |
| 09.10.21 | 2nd round | Filip Krajinovic | Marcos Giron | 7-62, 7-5 | | match details | Indian Wells | Hard |
| 07.10.21 | 1st round | Marcos Giron | Botic Van De Zandschulp | 6-77, 6-2, 6-4 | | match details | ||
| 01.09.21 | 2nd round | Daniel Evans | Marcos Giron | 6-4, 7-63, 2-6, 6-3 | | match details | New York | Hard |
| 30.08.21 | 1st round | Marcos Giron | Antoine Hoang | 6-3, 6-4, 7-5 | | match details | ||
| 26.08.21 | 1/4 | Carlos Alcaraz | Marcos Giron | 7-62, 6-2 | | match details | Winston-Salem | Hard |
| 25.08.21 | 3rd round | Marcos Giron | Pierre-Hugues Herbert | 4-6, 6-3, 6-3 | | match details | ||
| 24.08.21 | 2nd round | Marcos Giron | Federico Delbonis | 6-3, 6-4 | | match details | ||
| 22.08.21 | 1st round | Marcos Giron | Facundo Bagnis | 7-5, 6-4 | | match details | ||
| 17.08.21 | 1st round | Alexander Bublik | Marcos Giron | 3-6, 6-3, 7-65 | | match details | Cincinnati | Hard |
| 15.08.21 | qual. | Marcos Giron | Dominik Koepfer | 7-66, 6-4 | | match details | ||
| 14.08.21 | q 1 | Marcos Giron | Jeff Wolf | 6-3, 6-3 | | match details | ||
| 07.08.21 | q 1 | Brayden Schnur | Marcos Giron | 6-2, 6-3 | | match details | Toronto | Hard |
| 03.08.21 | 2nd round | Cameron Norrie | Marcos Giron | 6-4, 6-3 | | match details | Washington | Hard |
| 02.08.21 | 1st round | Marcos Giron | Illya Marchenko | 4-6, 6-4, 7-61 | | match details | ||
| 27.07.21 | 2nd round | Kei Nishikori | Marcos Giron | 7-65, 3-6, 6-1 | | match details | Tokyo | Hard |
| 25.07.21 | 1st round | Marcos Giron | Norbert Gombos | 7-64, 3-6, 6-2 | | match details | ||
| 26.03.21 | 2nd round | Taylor Harry Fritz | Marcos Giron | 6-2, 6-2 | | match details | Miami | Hard |
| 24.03.21 | 1st round | Marcos Giron | Tommy Paul | 7-65, 6-4 | | match details | ||
| 08.02.21 | 1st round | Alexander Zverev | Marcos Giron | 6-78, 7-64, 6-3, 6-2 | | match details | Melbourne | Hard |
| 05.02.21 | 3rd round | Daniel Evans | Marcos Giron | 6-4, 7-64 | | match details | Melbourne | Hard |
| 03.02.21 | 2nd round | Marcos Giron | Adrian Mannarino | 6-3, 6-4 | | match details | ||
| 02.02.21 | 1st round | Marcos Giron | Michael Mmoh | 6-1, 7-5 | | match details | ||
| 02.09.20 | 2nd round | Filip Krajinovic | Marcos Giron | 6-4, 6-1, 6-3 | | match details | New York | Hard |
| 31.08.20 | 1st round | Marcos Giron | Marc Polmans | 6-4, 6-75, 3-6, 6-4, 6-2 | | match details | ||
| 24.08.20 | 2nd round | Daniil Medvedev | Marcos Giron | 6-4, 6-4 | | match details | New York | Hard |
| 23.08.20 | 1st round | Marcos Giron | Mackenzie Mcdonald | 7-62, 7-5 | | match details | ||
| 21.08.20 | qual. | Marcos Giron | Gregoire Barrere | 4-6, 7-62, 6-4 | | match details | ||
| 20.08.20 | q 1 | Marcos Giron | Laslo Djere | 6-2, 6-2 | | match details | ||
| 06.03.20 | 1/4 | Brandon Nakashima | Marcos Giron | 7-62, 3-6, 6-2 | | match details | Indian Wells | Hard |
| 05.03.20 | 3rd round | Marcos Giron | Roberto Marcora | 7-64, 6-1 | | match details | ||
| 04.03.20 | 2nd round | Marcos Giron | Ryan Peniston | 6-2, 7-64 | | match details | ||
| 26.02.20 | 2nd round | John Isner | Marcos Giron | 6-3, 7-64 | | match details | Acapulco | Hard |
| 24.02.20 | 1st round | Marcos Giron | Gerardo Lopez Villasenor | 6-4, 7-63 | | match details | ||
| 23.02.20 | qual. | Marcos Giron | Taro Daniel | 6-4, 5-7, 6-1 | | match details | ||
| 22.02.20 | q 1 | Marcos Giron | Juan Alejandro Hernandez | 7-5, 6-1 | | match details | ||
| 28.01.20 | 2nd round | Sebastian Korda | Marcos Giron | 6-4, 3-6, 7-65 | | match details | Newport Beach | Hard |
| 20.01.20 | 1st round | Philipp Kohlschreiber | Marcos Giron | 7-5, 6-1, 6-2 | | match details | Melbourne | Hard |
| 17.01.20 | 1/2 | Stefano Travaglia | Marcos Giron | 6-3, 6-3 | | match details | Bendigo Challenger | Hard |
| 16.01.20 | 1/4 | Marcos Giron | Roberto Carballes Baena | 6-4, 6-2 | | match details | ||
| 15.01.20 | 3rd round | Marcos Giron | Mukund Sasikumar | 6-4, 6-3 | | match details | ||
| 14.01.20 | 2nd round | Marcos Giron | Michail Pervolarakis | 6-3, 6-0 | | match details | ||
| 08.01.20 | 2nd round | Harry Bourchier | Marcos Giron | 6-3, 6-73, 6-3 | | match details | Canberra Challenger | Hard |
| 17.11.19 | fin | Marcos Giron | Ivo Karlovic | 7-5, 6-75, 7-69 | | match details | Houston Challenger | Hard |
| 16.11.19 | 1/2 | Marcos Giron | Mitchell Krueger | 7-64, 6-2 | | match details | ||
| 15.11.19 | 3rd round | Marcos Giron | Jenson Brooksby | 6-2, 4-6, 6-3 | | match details | ||
| 15.11.19 | 1/4 | Marcos Giron | Jason Jung | 6-1, 2-6, 6-2 | | match details | ||
| 13.11.19 | 2nd round | Marcos Giron | Brandon Holt | 7-64, 6-77, 6-2 | | match details | ||
| 18.10.19 | 1/4 | Christopher O'Connell | Marcos Giron | 7-67, 3-6, 7-66 | | match details | Las Vegas | Hard |
| 17.10.19 | 3rd round | Marcos Giron | Michail Pervolarakis | 6-0, 7-64 | | match details | ||
| 16.10.19 | 2nd round | Marcos Giron | Kevin King | 6-4, 6-3 | | match details | ||
| 26.09.19 | 3rd round | Thai Kwiatkowski | Marcos Giron | 4-6, 7-63, 6-4 | | match details | Tiburon Challenger | Hard |
| 25.09.19 | 2nd round | Marcos Giron | Michael Redlicki | 6-4, 7-5 | | match details | ||
| 11.09.19 | 2nd round | Ben Patael | Marcos Giron | 2-6, 7-5, Marcos Giron - retired | | match details | Cary Challenger | Hard |
| 08.09.19 | fin | Tommy Paul | Marcos Giron | 6-3, 6-3 | | match details | New Haven | Hard |
| 07.09.19 | 1/2 | Marcos Giron | Damir Dzumhur | 7-5, 5-7, 6-2 | | match details | ||
| 06.09.19 | 1/4 | Marcos Giron | Brayden Schnur | 6-3, 6-2 | | match details | ||
| 05.09.19 | 3rd round | Marcos Giron | Denis Istomin | 2-6, 7-61, 6-3 | | match details | ||
| 04.09.19 | 2nd round | Marcos Giron | John Mcnally | 7-66, 7-65 | | match details | ||
| 26.08.19 | 1st round | Yoshihito Nishioka | Marcos Giron | 3-6, 6-4, 6-4, 6-4 | | match details | New York | Hard |
| 19.08.19 | 1st round | Roberto Carballes Baena | Marcos Giron | 6-2, 2-6, 6-3 | | match details | Winston-Salem | Hard |
| 18.08.19 | qual. | Marcos Giron | Borna Gojo | 6-4, 6-4 | | match details | ||
| 17.08.19 | q 1 | Marcos Giron | Roy Smith | 6-2, 6-0 | | match details | ||
| 09.08.19 | 1/4 | Dominik Koepfer | Marcos Giron | 6-1, 6-4 | | match details | Aptos Challenger | Hard |
| 08.08.19 | 3rd round | Marcos Giron | Borna Gojo | 3-6, 7-62, 6-4 | | match details | ||
| 06.08.19 | 2nd round | Marcos Giron | Martin Redlicki | 6-2, 6-3 | | match details | ||
| 27.07.19 | q 1 | Marcelo Arevalo | Marcos Giron | 6-4, 6-3 | | match details | Los Cabos | Hard |
| 05.04.19 | 1/4 | Tennys Sandgren | Marcos Giron | 6-1, 6-74, 6-0 | | match details | Monterrey Challenger | Hard |
| 04.04.19 | 3rd round | Marcos Giron | Marcel Granollers | 4-6, 6-3, 6-4 | | match details | ||
| 02.04.19 | 2nd round | Marcos Giron | Emilio Nava | 6-4, 6-2 | | match details | ||
| 11.03.19 | 3rd round | Milos Raonic | Marcos Giron | 4-6, 6-4, 6-4 | | match details | Indian Wells | Hard |
| 09.03.19 | 2nd round | Marcos Giron | Alex De Minaur | 1-6, 6-4, 6-2 | | match details | ||
| 07.03.19 | 1st round | Marcos Giron | Jeremy Chardy | 7-63, 7-61 | | match details | ||
| 06.03.19 | qual. | Marcos Giron | Miomir Kecmanovic | 6-73, 7-5, 7-64 | | match details | ||
| 05.03.19 | q 1 | Marcos Giron | Thomas Fabbiano | 6-3, 2-6, 6-4 | | match details | ||
| 25.02.19 | 1st round | Christopher Eubanks | Marcos Giron | 7-5, 6-3 | | match details | Indian Wells | Hard |
| 23.01.19 | 2nd round | Taylor Harry Fritz | Marcos Giron | 2-6, 7-66, 7-67 | | match details | Newport Beach | Hard |
| 21.01.19 | 1st round | Marcos Giron | Goncalo Oliveira | 6-73, 6-3, 6-3 | | match details | ||
| 06.01.19 | fin | Marcos Giron | Darian King | 6-4, 6-4 | | match details | Orlando Challenger | Hard |
| 05.01.19 | 1/2 | Marcos Giron | Gastao Elias | 6-3, 7-5 | | match details | ||
| 04.01.19 | 1/4 | Marcos Giron | Mathias Bourgue | 6-2, 6-2 | | match details | ||
| 03.01.19 | 3rd round | Marcos Giron | Dennis Novikov | 6-1, 6-2 | | match details | ||
| 01.01.19 | 2nd round | Marcos Giron | Uladzimir Ignatik | 6-1, 7-5 | | match details | ||
| 31.12.18 | 1st round | Marcos Giron | Andrea Collarini | 6-74, 6-2, 6-0 | | match details | ||
| 13.11.18 | 1st round | Ivo Karlovic | Marcos Giron | 6-4, 6-2 | | match details | Houston Challenger | Hard |
| 06.10.18 | q 1 | Thai Kwiatkowski | Marcos Giron | 4-6, 6-2, 6-4 | | match details | Fairfield Challenger | Hard |
| 30.09.18 | q 2 | Pablo Vivero Gonzalez | Marcos Giron | 6-3, 1-6, 6-4 | | match details | Stockton Challenger | Hard |
| 29.09.18 | q 1 | Marcos Giron | Roberto Ortega-Olmedo | 6-4, 6-4 | | match details | ||
| 23.09.18 | q 2 | Roberto Ortega-Olmedo | Marcos Giron | 6-3, 1-6, 7-5 | | match details | Tiburon Challenger | Hard |
| 22.09.18 | q 1 | Marcos Giron | Marc-Andrea Huesler | 6-2, 7-61 | | match details | ||
| 03.09.18 | q 2 | Marcos Giron | Jared Hiltzik | 7-5, 2-6, 6-1 | | match details | Chicago Challenger | Hard |
| 03.09.18 | qual. | Hugo Nys | Marcos Giron | 6-1, 6-4 | | match details | ||
| 13.08.18 | qual. | Jc Aragone | Marcos Giron | 6-3, 5-7, 6-3 | | match details | Vancouver Challenger | Hard |
| 12.08.18 | q 2 | Marcos Giron | Mikael Torpegaard | 6-4, 6-2 | | match details | ||
| 11.08.18 | q 1 | Marcos Giron | Luke Saville | 6-3, 6-3 | | match details | ||
| 09.08.18 | 2nd round | Martin Redlicki | Marcos Giron | 6-3, 6-4 | | match details | Aptos Challenger | Hard |
| 06.08.18 | 1st round | Marcos Giron | Tommy Paul | 6-3, 6-0 | | match details | ||
| 05.08.18 | qual. | Marcos Giron | Yosuke Watanuki | 7-66, 6-4 | | match details | ||
| 04.08.18 | q 2 | Marcos Giron | Henry Craig | 6-77, 6-3, 6-3 | | match details | ||
| 01.08.18 | 2nd round | Juan Martin Del Potro | Marcos Giron | 7-5, 6-3 | | match details | Los Cabos | Hard |
| 31.07.18 | 1st round | Marcos Giron | Marcelo Arevalo | 6-2, 7-5 | | match details | ||
| 29.07.18 | qual. | Marcos Giron | Daniel Elahi Galan | 6-2, 7-5 | | match details | ||
| 28.07.18 | q 1 | Marcos Giron | Bradley Mousley | 6-4, 6-3 | | match details | ||
| 26.07.18 | 2nd round | Jay Clarke | Marcos Giron | 3-6, 6-3, 6-2 | | match details | Binghamton Challenger | Hard |
| 23.07.18 | 1st round | Marcos Giron | Martin Redlicki | 4-6, 6-3, 7-5 | | match details | ||
| 09.07.18 | 1st round | Mitchell Krueger | Marcos Giron | 4-6, 6-1, 6-2 | | match details | Winnetka Challenger | Hard |
| 27.06.18 | 1st round | Trent Bryde | Marcos Giron | 4-6, 6-4, 5-2, Marcos Giron - retired | | match details | USA F17 | Hard |
| 21.06.18 | 2nd round | Petros Chrysochos | Marcos Giron | 5-7, 6-3, 6-2 | | match details | USA F15 | Hard |
| 19.06.18 | 1st round | Marcos Giron | Felipe Mantilla | 6-1, 7-65 | | match details | ||
| 14.06.18 | 2nd round | Yuval Solomon | Marcos Giron | 6-4, 6-76, 6-0 | | match details | USA F13 | Hard |
| 12.06.18 | 1st round | Marcos Giron | Gage Brymer | 6-3, 6-3 | | match details | ||
| 18.05.18 | 1/4 | Vasek Pospisil | Marcos Giron | 3-6, 6-2, 6-4 | | match details |  Busan Challenger | Hard |
| 17.05.18 | 2nd round | Marcos Giron | Go Soeda | 6-4, 6-4 | | match details | ||
| 15.05.18 | 1st round | Marcos Giron | Young Seok Kim | 6-3, 6-3 | | match details | ||
| 08.05.18 | 1st round | Jason Murray Kubler | Marcos Giron | 6-4, 6-2 | | match details | Gimcheon Challenger | Hard |
| 30.04.18 | 1st round | Go Soeda | Marcos Giron | 1-6, 6-3, 6-4 | | match details | Seoul Challenger | Hard |
| 25.03.18 | fin | Jc Aragone | Marcos Giron | 6-2, 6-4 | | match details | USA F8 | Hard |
| 24.03.18 | 1/2 | Marcos Giron | Tom Fawcett | 6-2, 6-1 | | match details | ||
| 23.03.18 | 2nd round | Marcos Giron | Karue Sell | 6-4, 6-1 | | match details | ||
| 23.03.18 | 1/4 | Marcos Giron | Corentin Denolly | 4-6, 7-5, 6-1 | | match details | ||
| 20.03.18 | 1st round | Marcos Giron | Harry Bourchier | 6-3, 3-6, 6-2 | | match details | ||
| 06.03.18 | q 1 | Sergiy Stakhovsky | Marcos Giron | 5-7, 7-64, 6-4 | | match details | Indian Wells | Hard |
| 01.03.18 | 2nd round | Vasek Pospisil | Marcos Giron | 4-6, 7-66, 6-1 | | match details | Indian Wells | Hard |
| 27.02.18 | 1st round | Marcos Giron | Adrian Menendez-Maceiras | 6-3, 7-63 | | match details | ||
| 25.02.18 | qual. | Marcos Giron | Evan Song | 6-4, 7-5 | | match details | ||
| 24.02.18 | q 1 | Marcos Giron | Boris Kozlov | 6-2, 6-0 | | match details | ||
| 22.01.18 | qual. | Tom Fawcett | Marcos Giron | 6-2, 3-6, 6-4 | | match details | Newport Beach | Hard |
| 21.01.18 | q 2 | Marcos Giron | Jose Statham | 4-6, 7-63, 6-3 | | match details | ||
| 20.01.18 | q 1 | Marcos Giron | Henry Craig | 6-2, 6-4 | | match details | ||
| 10.01.18 | 1st round | Collin Altamirano | Marcos Giron | 7-60, 6-3 | | match details | USA F2 | Hard |
| 18.10.17 | 2nd round | Kevin King | Marcos Giron | 4-6, 6-3, 6-4 | | match details | Las Vegas | Hard |
| 16.10.17 | 1st round | Marcos Giron | Nikola Milojevic | 6-4, 7-61 | | match details | ||
| 30.09.17 | q 1 | Borna Coric | Marcos Giron | 6-3, 6-4 | | match details | Beijing | Hard |
| 24.09.17 | qual. | Stefanos Tsitsipas | Marcos Giron | 6-1, 6-2 | | match details | Chengdu | Hard |
| 23.09.17 | q 1 | Marcos Giron | Takuto Niki | 6-2, 7-5 | | match details | ||
| 21.09.17 | 2nd round | Peter Polansky | Marcos Giron | 6-4, 3-6, 7-63 | | match details | Gwangju Challenger | Hard |
| 18.09.17 | 1st round | Marcos Giron | Nicola Kuhn | 6-4, 7-66 | | match details | ||
| 12.09.17 | 1st round | Di Wu | Marcos Giron | 7-66, 6-4 | | match details | Shanghai Challenger | Hard |
| 23.08.17 | q 1 | Cristian Garin | Marcos Giron | 6-3, 6-4 | | match details | New York | Hard |
| 01.08.17 | 1st round | Lloyd Harris | Marcos Giron | 7-61, 6-0 | | match details | Lexington Challenger | Hard |
| 25.07.17 | 1st round | Michael Mmoh | Marcos Giron | 7-5, 7-5 | | match details | Binghamton Challenger | Hard |
| 21.07.17 | 1/4 | Peter Polansky | Marcos Giron | 3-6, 6-3, 6-3 | | match details | Gatineau Challenger | Hard |
| 20.07.17 | 2nd round | Marcos Giron | Go Soeda | 6-2, 6-1 | | match details | ||
| 18.07.17 | 1st round | Marcos Giron | Filip Peliwo | 6-2, 6-0 | | match details | ||
| 17.07.17 | qual. | Marcos Giron | Matthias Bachinger | 7-64, 6-4 | | match details | ||
| 16.07.17 | q 2 | Marcos Giron | Roy Smith | 6-0, 6-2 | | match details | ||
| 13.07.17 | 2nd round | Yasutaka Uchiyama | Marcos Giron | 6-4, 4-6, 6-2 | | match details | Winnipeg Challenger | Hard |
| 12.07.17 | 1st round | Marcos Giron | Finn Tearney | 6-3, 6-1 | | match details | ||
| 09.07.17 | fin | Filip Peliwo | Marcos Giron | 7-67, 6-75, 6-1 | | match details | Canada F4 | Hard |
| 08.07.17 | 1/2 | Marcos Giron | Raymond Sarmiento | 6-75, 6-2, 7-5 | | match details | ||
| 07.07.17 | 1/4 | Marcos Giron | Raheel Manji | 6-3, 6-75, 7-5 | | match details | ||
| 06.07.17 | 2nd round | Marcos Giron | Connor Farren | 3-6, 6-4, 6-3 | | match details | ||
| 05.07.17 | 1st round | Marcos Giron | Christian Lakoseljac | 6-1, 6-2 | | match details | ||
| 30.06.17 | 1/4 | Deiton Baughman | Marcos Giron | 6-3, 6-4 | | match details | Canada F3 | Hard |
| 30.06.17 | 2nd round | Marcos Giron | Benjamin Sigouin | 6-0, Benjamin Sigouin - retired | | match details | ||
| 28.06.17 | 1st round | Marcos Giron | Nicaise Muamba | 6-3, 7-64 | | match details | ||
| 02.06.17 | 1/4 | Zhizhen Zhang | Marcos Giron | 7-5, 6-0 | | match details | China F9 | Hard |
| 31.05.17 | 2nd round | Marcos Giron | Harry Bourchier | 6-4, 1-6, 6-3 | | match details | ||
| 31.05.17 | 1st round | Marcos Giron | Calum Puttergill | 6-2, 6-4 | | match details | ||
| 27.05.17 | 1/2 | Marcos Giron | Zhe Li | 6-2, 6-4 | | match details | China F8 | Hard |
| 27.05.17 | fin | Marcos Giron | Alexander Sarkissian | 7-5, 6-4 | | match details | ||
| 26.05.17 | 1/4 | Marcos Giron | Finn Tearney | 4-6, 7-65, 6-1 | | match details | ||
| 24.05.17 | 2nd round | Marcos Giron | Yu Chang | 6-4, 6-1 | | match details | ||
| 23.05.17 | 1st round | Marcos Giron | Ryota Tanuma | 6-3, 4-6, 6-2 | | match details | ||
| 21.05.17 | fin | Dayne Kelly | Marcos Giron | 7-64, 7-66 | | match details | China F7 | Hard |
| 20.05.17 | 1/2 | Marcos Giron | Harry Bourchier | 6-4, 6-0 | | match details | ||
| 19.05.17 | 1/4 | Marcos Giron | Jose Statham | 7-63, 7-66 | | match details | ||
| 17.05.17 | 2nd round | Marcos Giron | Rigele Te | 6-1, 7-65 | | match details | ||
| 15.05.17 | 1st round | Marcos Giron | Masato Shiga | 6-1, 6-4 | | match details | ||
| 25.03.17 | 1/2 | Bradley Klahn | Marcos Giron | 6-3, 6-2 | | match details | USA F11 | Hard |
| 24.03.17 | 1/4 | Marcos Giron | Tommy Paul | 6-4, 6-4 | | match details | ||
| 23.03.17 | 2nd round | Marcos Giron | Wil Spencer | 6-2, 7-5 | | match details | ||
| 22.03.17 | 1st round | Marcos Giron | Mousheg Hovhannisyan | 6-1, 6-74, 6-4 | | match details | ||
| 17.03.17 | 1/4 | Dmitry Popko | Marcos Giron | 6-2, 6-4 | | match details | USA F10 | Hard |
| 16.03.17 | 2nd round | Marcos Giron | John Lamble | 6-4, 6-2 | | match details | ||
| 15.03.17 | 1st round | Marcos Giron | Henry Craig | 6-3, 7-66 | | match details | ||
| 07.03.17 | q 1 | Mikhail Kukushkin | Marcos Giron | 6-3, 6-3 | | match details | Indian Wells | Hard |
| 18.02.17 | q 1 | Steve Darcis | Marcos Giron | 6-2, 6-0 | | match details | Delray Beach | Hard |
| 15.01.17 | fin | Marcos Giron | Collin Altamirano | 7-63, 6-1 | | match details | USA F2 | Hard |
| 14.01.17 | 1/2 | Marcos Giron | Sebastian Fanselow | 6-71, 7-66, 6-2 | | match details | ||
| 13.01.17 | 2nd round | Marcos Giron | Emilio Gomez | 6-4, 6-3 | | match details | ||
| 13.01.17 | 1/4 | Marcos Giron | Evan King | 7-5, 6-4 | | match details | ||
| 11.01.17 | 1st round | Marcos Giron | Dekel Bar | 2-6, 6-4, 6-4 | | match details | ||
| 06.01.17 | 2nd round | Mackenzie Mcdonald | Marcos Giron | 6-74, 6-1, 6-2 | | match details | USA F1 | Hard |
| 03.01.17 | 1st round | Marcos Giron | Aron Hiltzik | 6-3, 6-0 | | match details | ||
| 23.10.16 | fin | Marcos Giron | Andre Goransson | 5-7, 7-65, 6-4 | | match details | USA F33 | Hard |
| 22.10.16 | 1/2 | Marcos Giron | Ruben Bemelmans | 1-6, 6-3, 7-5 | | match details | ||
| 21.10.16 | 1/4 | Marcos Giron | Rhyne Williams | 1-6, 6-3, 6-3 | | match details | ||
| 20.10.16 | 2nd round | Marcos Giron | Connor Smith | 7-5, 6-4 | | match details | ||
| 19.10.16 | 1st round | Marcos Giron | J. T. Nishimura | 7-5, 6-1 | | match details | ||
| 10.10.16 | qual. | Dennis Nevolo | Marcos Giron | 6-4, 6-1 | | match details | Fairfield Challenger | Hard |
| 09.10.16 | q 2 | Marcos Giron | Andres Molteni | 6-3, 6-75, 6-0 | | match details | ||
| 08.10.16 | q 1 | Marcos Giron | Edoardo Eremin | 6-4, 0-6, 6-4 | | match details | ||
| 01.10.16 | 1/2 | Sebastian Fanselow | Marcos Giron | 7-5, 6-1 | | match details | USA F30 | Hard |
| 30.09.16 | 1/4 | Marcos Giron | Markos Kalovelonis | 7-68, 6-3 | | match details | ||
| 29.09.16 | 2nd round | Marcos Giron | Hunter Johnson | 6-4, 6-4 | | match details | ||
| 28.09.16 | 1st round | Marcos Giron | Cristobal Rivera | 6-0, 6-1 | | match details | ||
| 23.09.16 | 1/4 | Jan Choinski | Marcos Giron | 6-3, 5-7, 6-4 | | match details | USA F29 | Hard |
| 22.09.16 | 2nd round | Marcos Giron | Or Ram-Harel | 6-4, 1-6, 6-3 | | match details | ||
| 21.09.16 | 1st round | Marcos Giron | Lucas Catarina | 6-0, 6-1 | | match details | ||
| 16.11.15 | 1st round | Zach Itzstein | Marcos Giron | 6-2, 1-0, Marcos Giron - retired | | match details | Australia F11 | Hard |
| 09.11.15 | 2nd round | Marcos Giron | Bradley Mousley | 6-75, 6-3, 7-65 | | match details | Australia F10 | Hard |
| 09.11.15 | 1st round | Marcos Giron | Blade Fong | 6-0, 6-4 | | match details | ||
| 09.11.15 | 1/4 | Jose Statham | Marcos Giron | 7-63, 7-5 | | match details | ||
| 09.11.15 | q 2 | Marcos Giron | Lucas Vuradin | 6-0, 6-1 | | match details | ||
| 09.11.15 | qual. | Marcos Giron | Zach Itzstein | 6-3, 6-1 | | match details | ||
| 06.11.15 | 1/4 | Luke Saville | Marcos Giron | 6-4, 1-6, 7-61 | | match details | Canberra Challenger | Hard |
| 04.11.15 | 2nd round | Marcos Giron | John Millman | 6-4, 6-4 | | match details | ||
| 03.11.15 | 1st round | Marcos Giron | Jose Statham | 7-63, 6-3 | | match details | ||
| 27.10.15 | 1st round | Alex Bolt | Marcos Giron | 7-64, 7-5 | | match details | Traralgon Challenger | Hard |
| 12.10.15 | 1st round | Frank Dancevic | Marcos Giron | 4-6, 7-62, 7-62 | | match details | Fairfield Challenger | Hard |
| 09.10.15 | 1/4 | Taylor Harry Fritz | Marcos Giron | 6-3, 6-4 | | match details | Sacramento Challenger | Hard |
| 08.10.15 | 2nd round | Marcos Giron | Blaz Kavcic | 7-63, 7-62 | | match details | ||
| 06.10.15 | 1st round | Marcos Giron | Marek Michalicka | 6-4, 6-3 | | match details | ||
| 05.10.15 | qual. | Marcos Giron | Adrien Bossel | 3-6, 6-2, 6-3 | | match details | ||
| 04.10.15 | q 2 | Marcos Giron | Fritz Wolmarans | 3-6, 7-66, 7-5 | | match details | ||
| 03.10.15 | q 1 | Marcos Giron | Ben Mclachlan | 6-4, 6-4 | | match details | ||
| 28.09.15 | qual. | Dennis Nevolo | Marcos Giron | 7-63, 5-7, 7-5 | | match details | Tiburon Challenger | Hard |
| 27.09.15 | q 2 | Marcos Giron | Filip Bergevi | 7-63, 6-1 | | match details | ||
| 21.09.15 | 1st round | Marcos Giron | Benjamin Lock | 6-3, 6-2 | | match details | USA F27 | Hard |
| 21.09.15 | 2nd round | Ernesto Escobedo | Marcos Giron | 6-1, 6-4 | | match details | ||
| 14.09.15 | 1st round | Collin Altamirano | Marcos Giron | 3-6, 6-3, 6-3 | | match details | USA F26 | Hard |
| 26.08.15 | q 1 | Alejandro Gonzalez | Marcos Giron | 7-61, 6-2 | | match details | New York | Hard |
| 03.08.15 | 2nd round | Richard Gabb | Marcos Giron | 6-3, 7-5 | | match details | USA F24 | Hard |
| 03.08.15 | 1st round | Marcos Giron | Michael Grant | 6-3, 6-3 | | match details | ||
| 27.07.15 | qual. | Marcos Giron | Cole Lacap | 6-3, 6-0 | | match details | Canada F6 | Hard |
| 27.07.15 | 1/2 | Aleksandar Vukic | Marcos Giron | 6-79, 7-67, 6-3 | | match details | ||
| 27.07.15 | 2nd round | Marcos Giron | Finn Tearney | 5-3, Finn Tearney - retired | | match details | ||
| 27.07.15 | 1/4 | Marcos Giron | Dennis Nevolo | 6-3, 7-61 | | match details | ||
| 27.07.15 | 1st round | Marcos Giron | Robbie C. Bellamy | 6-0, 6-4 | | match details | ||
| 21.07.15 | 1st round | Brydan Klein | Marcos Giron | 2-6, 7-67, 6-4 | | match details | Binghamton Challenger | Hard |
| 19.07.15 | qual. | Marcos Giron | Dmytro Kamynin | 6-3, 7-67 | | match details | ||
| 18.07.15 | q 2 | Marcos Giron | Nicholas Bybel | 6-4, 6-2 | | match details | ||
| 08.07.15 | 2nd round | Blaz Kavcic | Marcos Giron | 3-6, 6-2, 7-5 | | match details | Winnetka Challenger | Hard |
| 07.07.15 | 1st round | Marcos Giron | Tom Fawcett | 6-1, 7-62 | | match details | ||
| 06.07.15 | qual. | Marcos Giron | Farris Fathi Gosea | 3-6, 7-66, 6-0 | | match details | ||
| 05.07.15 | q 2 | Marcos Giron | Patrick Daciek | 3-6, 6-1, 6-1 | | match details | ||
| 05.07.15 | q 1 | Marcos Giron | Christopher Marquis | 6-3, 6-3 | | match details | ||
| 29.06.15 | 2nd round | Marcos Giron | Joshua Peck | 6-1, 6-2 | | match details | Canada F4 | Hard |
| 29.06.15 | 1/2 | Omar Jasika | Marcos Giron | 6-3, 6-3 | | match details | ||
| 29.06.15 | 1/4 | Marcos Giron | Raymond Sarmiento | 6-3, 6-1 | | match details | ||
| 29.06.15 | 1st round | Marcos Giron | Kieran Bertsch | 6-2, 6-1 | | match details | ||
| 22.06.15 | 1/4 | Alexios Halebian | Marcos Giron | 4-6, 7-65, 6-2 | | match details | Canada F3 | Hard |
| 22.06.15 | 1st round | Marcos Giron | George Jecminek | 6-2, 6-4 | | match details | ||
| 22.06.15 | 2nd round | Marcos Giron | Alexander Centenari | 6-1, 6-1 | | match details | ||
| 18.05.15 | 1st round | Hiroyasu Ehara | Marcos Giron | 2-6, 7-5, 7-5 | | match details | Korea F1 | Hard |
| 12.05.15 | 1st round | Alexander Kudryavtsev | Marcos Giron | 6-2, 6-0 | | match details | Seoul Challenger | Hard |
| 11.05.15 | qual. | Marcos Giron | Di Wu | 7-5, 6-1 | | match details | ||
| 10.05.15 | q 2 | Marcos Giron | Seong Chan Hong | 6-0, 6-3 | | match details | ||
| 09.05.15 | q 1 | Marcos Giron | Yan Bai | 6-3, 5-7, 6-4 | | match details | ||
| 04.05.15 | qual. | Frederik Nielsen | Marcos Giron | 7-5, 4-6, 7-5 | | match details | Busan Challenger | Hard |
| 03.05.15 | q 2 | Marcos Giron | Yunseong Chung | 6-4, 6-3 | | match details | ||
| 02.05.15 | q 1 | Marcos Giron | Jae Hwan Kim | 6-2, 6-2 | | match details | ||
| 16.03.15 | 1st round | Darian King | Marcos Giron | 4-6, 4-1, Marcos Giron - retired | | match details | USA F10 | Hard |
| 15.02.15 | q 2 | Yoshihito Nishioka | Marcos Giron | 4-6, 6-3, 6-2 | | match details | Delray Beach | Hard |
| 14.02.15 | q 1 | Marcos Giron | Gregory Ouellette | 6-4, 7-5 | | match details | ||
| 12.01.15 | 1st round | Ji Sung Nam | Marcos Giron | 6-4, 6-2 | | match details | USA F4 | Hard |
| 17.11.14 | 1/2 | Marcos Giron | Darian King | 6-0, 4-6, 6-3 | | match details | Mexico F13 | Hard |
| 17.11.14 | 1st round | Marcos Giron | Jorge Alberto Escutia | 6-1, 6-0 | | match details | ||
| 17.11.14 | 2nd round | Marcos Giron | Kyle Mcmorrow | 6-2, 6-3 | | match details | ||
| 17.11.14 | 1/4 | Marcos Giron | Andre Dome | 7-5, 7-5 | | match details | ||
| 17.11.14 | fin | Daniel Nguyen | Marcos Giron | 6-0, 2-6, 7-60 | | match details | ||
| 10.10.14 | 1/4 | Nils Langer | Marcos Giron | 6-4, 1-6, 7-5 | | match details | Tiburon Challenger | Hard |
| 09.10.14 | 2nd round | Marcos Giron | Bradley Klahn | 7-63, 7-61 | | match details | ||
| 07.10.14 | 1st round | Marcos Giron | Alex Bolt | 6-0, 6-3 | | match details | ||
| 06.10.14 | qual. | Marcos Giron | Liam Broady | 6-3, 5-7, 6-2 | | match details | ||
| 05.10.14 | q 2 | Marcos Giron | Collin Altamirano | 6-2, 6-2 | | match details | ||
| 04.10.14 | q 1 | Marcos Giron | Harry Bourchier | 6-1, 6-2 | | match details | ||
| 02.10.14 | 2nd round | Bjorn Fratangelo | Marcos Giron | 7-63, 7-5 | | match details | Sacramento Challenger | Hard |
| 30.09.14 | 1st round | Marcos Giron | Alex Bolt | 6-4, 6-4 | | match details | ||
| 29.09.14 | qual. | Marcos Giron | Nils Langer | 6-3, 6-79, 7-64 | | match details | ||
| 28.09.14 | q 2 | Marcos Giron | Alexios Halebian | 6-4, 7-63 | | match details | ||
| 27.09.14 | q 1 | Marcos Giron | Brandon L. Sutter | 6-0, 6-2 | | match details | ||
| 23.09.14 | 1st round | Marcos Baghdatis | Marcos Giron | 6-3, 6-2 | | match details | Napa Challenger | Hard |
| 26.08.14 | 1st round | John Isner | Marcos Giron | 7-65, 6-2, 7-62 | | match details | New York | Hard |
| 18.08.14 | 1st round | Aleksandr Nedovyesov | Marcos Giron | 6-4, 6-4 | | match details | Winston-Salem | Hard |
| 17.08.14 | qual. | Marcos Giron | Mate Pavic | 3-6, 6-3, 6-4 | | match details | ||
| 16.08.14 | q 1 | Marcos Giron | Kevin King | 6-4, 6-4 | | match details | ||
| 16.08.14 | q 2 | Marcos Giron | Nicolas Meister | 6-1, 2-6, 6-4 | | match details | ||
| 09.08.14 | q 1 | Adrian Mannarino | Marcos Giron | 6-3, 7-5 | | match details | Cincinnati | Hard |
| 04.08.14 | 1st round | Ante Pavic | Marcos Giron | 3-6, 7-66, 6-3 | | match details | Aptos Challenger | Hard |
| 29.07.14 | 1st round | Andrea Collarini | Marcos Giron | 7-63, 6-3 | | match details | Vancouver Challenger | Hard |
| 27.07.14 | qual. | Marcos Giron | Evan King | 6-3, 7-65 | | match details | ||
| 26.07.14 | q 1 | Marcos Giron | Divij Sharan | 6-2, 6-1 | | match details | ||
| 26.07.14 | q 2 | Marcos Giron | Clay Thompson | 6-1, 6-2 | | match details | ||
| 22.07.14 | 1st round | Austin Krajicek | Marcos Giron | 6-4, 6-2 | | match details | Lexington Challenger | Hard |
| 21.07.14 | qual. | Marcos Giron | Jordan Thompson | 7-62, 6-1 | | match details | ||
| 20.07.14 | q 2 | Marcos Giron | Blake Mott | 6-4, 6-2 | | match details | ||
| 19.07.14 | q 1 | Marcos Giron | Yuuya Kibi | 6-3, 6-4 | | match details | ||
| 15.07.14 | 1st round | Takanyi Garanganga | Marcos Giron | 4-6, 6-4, 6-3 | | match details | Binghamton Challenger | Hard |
| 01.07.14 | 1st round | Austin Krajicek | Marcos Giron | 7-65, 7-65 | | match details | Winnetka Challenger | Hard |
| 17.03.14 | fin | Marcos Giron | Jason Jung | 6-4, 4-6, 6-4 | | match details | USA F9 | Hard |
| 17.03.14 | 2nd round | Marcos Giron | Mitchell Krueger | 7-5, 6-3 | | match details | ||
| 17.03.14 | 1/4 | Marcos Giron | Kyle Mcmorrow | 6-2, 6-3 | | match details | ||
| 17.03.14 | 1/2 | Marcos Giron | Mate Pavic | 6-3, 4-6, 6-4 | | match details | ||
| 17.03.14 | 1st round | Marcos Giron | Mico Santiago | 6-2, 6-4 | | match details | ||
| 04.03.14 | q 1 | Stephane Robert | Marcos Giron | 6-4, 6-2 | | match details | Indian Wells | Hard |
| 23.01.14 | 2nd round | Bradley Klahn | Marcos Giron | 7-69, 6-0 | | match details | Maui Challenger | Hard |
| 22.01.14 | 1st round | Marcos Giron | Jared Donaldson | 7-63, 6-3 | | match details | ||
| 09.10.13 | 2nd round | Matthew Ebden | Marcos Giron | 4-6, 6-1, 6-3 | | match details | Tiburon Challenger | Hard |
| 08.10.13 | 1st round | Marcos Giron | Samuel Groth | 6-72, 7-61, 6-3 | | match details | ||
| 23.09.13 | fin | Marcos Giron | Jarmere Jenkins | 4-6, 6-1, 6-1 | | match details | USA F25 | Hard |
| 23.09.13 | 2nd round | Marcos Giron | Oscar Fabian Matthews | 6-4, 6-2 | | match details | ||
| 23.09.13 | 1/4 | Marcos Giron | Damon Gooch | 6-3, 6-1 | | match details | ||
| 23.09.13 | 1/2 | Marcos Giron | Noah Rubin | 6-4, 6-3 | | match details | ||
| 23.09.13 | 1st round | Marcos Giron | Rafael Davidian | 6-3, 6-2 | | match details | ||
| 16.09.13 | 1/2 | Mohamed Abid | Marcos Giron | 4-6, 6-3, 6-2 | | match details | USA F24 | Hard |
| 16.09.13 | 2nd round | Marcos Giron | Eduardo Nava | 6-2, 6-2 | | match details | ||
| 16.09.13 | 1/4 | Marcos Giron | Noah Rubin | 6-2, 6-2 | | match details | ||
| 16.09.13 | 1st round | Marcos Giron | Kyle-Joshua Dandan | 6-2, 6-4 | | match details | ||
| 09.09.13 | 1/2 | Marcos Giron | Mohamed Abid | 7-5, 6-74, 7-66 | | match details | USA F23 | Hard |
| 09.09.13 | 1st round | Marcos Giron | Matt Fawcett | 6-4, 6-0 | | match details | ||
| 09.09.13 | fin | Marcos Giron | Dennis Novikov | 6-0, 7-5 | | match details | ||
| 09.09.13 | 2nd round | Marcos Giron | Raymond Sarmiento | 6-3, 6-4 | | match details | ||
| 09.09.13 | 1/4 | Marcos Giron | Damon Gooch | 6-2, 6-1 | | match details | ||
| 04.08.13 | q 2 | Sanam Singh | Marcos Giron | 7-5, 1-6, 7-5 | | match details | Aptos Challenger | Hard |
| 03.08.13 | q 1 | Marcos Giron | Mandondo Ivy | 6-2, 6-1 | | match details | ||
| 22.07.13 | q 2 | Marcos Giron | Joey Swaysland | 6-1, 6-1 | | match details | USA F20 | Hard |
| 22.07.13 | qual. | Marcos Giron | Robbie Mudge | 6-2, 6-1 | | match details | ||
| 22.07.13 | 2nd round | Michael Shabaz | Marcos Giron | 6-3, 3-6, 6-3 | | match details | ||
| 22.07.13 | 1st round | Marcos Giron | Oleg Dmitriev | 6-4, 6-1 | | match details | ||
| 22.07.13 | q 1 | Marcos Giron | Liam Caruana | 7-62, 6-4 | | match details | ||
| 13.07.13 | q 1 | Nikita Kryvonos | Marcos Giron | 6-72, 6-3, 6-3 | | match details | Binghamton Challenger | Hard |
| 11.03.13 | 1st round | Marcos Giron | Blaz Rola | 6-3, 7-65 | | match details | USA F7 | Hard |
| 11.03.13 | 2nd round | Min-Hyoek Cho | Marcos Giron | 2-6, 6-4, 7-5 | | match details | ||
| 24.09.12 | 1st round | Daniel Nguyen | Marcos Giron | 6-0, 6-4 | | match details | USA F26 | Hard |
| 17.09.12 | 2nd round | Marcos Giron | Prakash Amritraj | 6-3, 6-4 | | match details | USA F25 | Hard |
| 17.09.12 | 1/4 | Jeff Dadamo | Marcos Giron | 6-3, 6-4 | | match details | ||
| 17.09.12 | 1st round | Marcos Giron | Reid Carleton | 6-3, 2-6, 7-64 | | match details | ||
| 10.09.12 | 1st round | Mohamed Abid | Marcos Giron | 7-65, 7-5 | | match details | USA F24 | Hard |
| 06.08.12 | 1st round | Ji Sung Nam | Marcos Giron | 6-4, 7-67 | | match details | USA F23 | Hard |
| 21.07.12 | q 1 | Clay Thompson | Marcos Giron | 6-3, 4-6, 6-4 | | match details | Los Angeles | Hard |
| 19.09.11 | 1st round | Artem Sitak | Marcos Giron | 3-6, 6-4, 6-1 | | match details | USA F24 | Hard |
| 12.09.11 | 2nd round | Darian King | Marcos Giron | 6-2, 3-6, 7-63 | | match details | USA F23 | Hard |
| 12.09.11 | 1st round | Marcos Giron | Javier Pulgar-Garcia | 6-73, 6-4, 6-3 | | match details | ||
| 08.09.11 | 2nd round | Jiri Vesely | Marcos Giron | 6-1, 6-3 | | match details | U.S. Open | Hard |
| 05.09.11 | 1st round | Marcos Giron | Enzo Couacaud | 7-61, 6-4 | | match details | ||
| 23.08.11 | q 1 | Jonathan Dasnieres de Veigy | Marcos Giron | 6-3, 6-2 | | match details | New York | Hard |
| 23.07.11 | q 1 | Artem Sitak | Marcos Giron | 0-6, 6-4, 6-4 | | match details | Los Angeles | Hard |
| 28.02.11 | 2nd round | Daniel Cox | Marcos Giron | 7-64, 6-4 | | match details | USA F6 | Hard |
| 28.02.11 | 1st round | Marcos Giron | Juan Pablo Ortiz | 6-3, 6-4 | | match details | ||
| 21.02.11 | 1st round | Marco Trungelliti | Marcos Giron | 2-6, 6-3, 6-1 | | match details | USA F5 | Hard |
| 29.11.10 | 2nd round | Yuki Bhambri | Marcos Giron | 6-4, 6-3 | | match details |  Dominican Republic | Hard |
| 29.11.10 | 1st round | Marcos Giron | Manuel Sanchez | 6-3, 6-2 | | match details | ||
| 22.11.10 | 2nd round | Peter Gojowczyk | Marcos Giron | 1-6, 6-4, 6-0 | | match details | Dominican Republic | Hard |
| 22.11.10 | 1st round | Marcos Giron | Olivier Sajous | 6-2, 6-1 | | match details | ||
| 18.10.10 | q 1 | Boris Nicola Bakalov | Marcos Giron | 6-4, 6-3 | | match details | Calabasas Challenger | Hard |
| 27.09.10 | 2nd round | Jan-Michael Gambill | Marcos Giron | 6-3, 6-4 | | match details | USA F25 | Hard |
| 27.09.10 | 1st round | Marcos Giron | Gilad Ben Zvi | 6-2, 6-2 | | match details | ||
| 13.09.10 | 2nd round | Nima Roshan | Marcos Giron | 6-3, 6-4 | | match details | USA F23 | Hard |
| 13.09.10 | 1st round | Marcos Giron | Ruben Gonzales | 6-4, 7-5 | | match details | ||
| 21.06.10 | 1st round | Daniel Kosakowski | Marcos Giron | 7-5, 7-67 | | match details | Usa F15 | Hard |
| 31.05.10 | q 1 | Boris Nicola Bakalov | Marcos Giron | 2-6, 6-4, 6-2 | | match details | Ojai Challenger | Hard |
| 24.05.10 | 1st round | Peter Polansky | Marcos Giron | 6-1, 7-5 | | match details | Carson Challenger | Hard |
| 19.10.09 | q 1 | James Lemke | Marcos Giron | Marcos Giron - walk over | | match details | Calabasas Challenger | Hard |