Name: Guilherme Clezar
Country: Brazil
Birthdate: 31.12.92, 31 years
ATP ranking: 878
TOP ranking's position: 153 (03.08.15, 330 points)
Points: 15
Prize money: 625196 $
Matches total: 660
Win: 347
%: 52.58 %
Country: Brazil
Birthdate: 31.12.92, 31 years
ATP ranking: 878
TOP ranking's position: 153 (03.08.15, 330 points)
Points: 15
Prize money: 625196 $
Matches total: 660
Win: 347
%: 52.58 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2022 | 2/1 | 0/0 | 2/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2021 | 1/6 | 0/1 | 1/5 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2020 | 21/12 | 6/3 | 10/6 | 5/3 | 0/0 | 0/0 | 0/0 |
| 2019 | 31/32 | 2/8 | 29/23 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2018 | 27/27 | 1/3 | 26/23 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2017 | 36/30 | 1/4 | 35/26 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2016 | 24/29 | 6/9 | 18/18 | 0/1 | 0/0 | 0/1 | 0/0 |
| 2015 | 43/35 | 9/7 | 34/27 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2014 | 20/26 | 1/3 | 19/23 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2013 | 36/32 | 3/5 | 33/26 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2012 | 28/30 | 8/5 | 20/25 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2011 | 52/24 | 10/6 | 42/18 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2010 | 18/19 | 4/5 | 13/13 | 0/0 | 0/0 | 1/1 | 0/0 |
| 2009 | 7/6 | 0/1 | 7/4 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2008 | 1/2 | 0/0 | 1/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2007 | 0/2 | 0/0 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 347/313 | 51/60 | 290/242 | 5/5 | 0/0 | 1/6 | 0/0 |
| perc. % | 52.58 % | 45.95 % | 54.51 % | 50 % | 0 % | 14.29 % | 0 % |
Guilherme Clezar / scheduled / last
| no matches found |
Guilherme Clezar form / year 2015 / surface: Hard
Guilherme Clezar / year 2015 / surface: Hard
| 28.08.15 | qual. | John-Patrick Smith | Guilherme Clezar | 6-3, 6-2 |  | match details |  New York | Hard |
| 27.08.15 | q 2 | Guilherme Clezar | Nicolas Almagro | 7-67, 4-6, 6-4 |  | match details | ||
| 26.08.15 | q 1 | Guilherme Clezar | Amir Weintraub | 3-6, 6-4, 6-3 | | match details | ||
| 13.08.15 | 2nd round | Malek Jaziri | Guilherme Clezar | 6-3, 3-6, 6-3 | | match details | Aptos Challenger | Hard |
| 11.08.15 | 1st round | Guilherme Clezar | Somdev Devvarman | 6-2, 1-6, 6-3 | | match details | ||
| 01.08.15 | q 1 | Ryan Harrison | Guilherme Clezar | 6-3, 6-72, 6-2 | | match details | Washington | Hard |
| 31.07.15 | 1/4 | John Millman | Guilherme Clezar | 6-1, 6-1 | | match details | Lexington Challenger | Hard |
| 30.07.15 | 2nd round | Guilherme Clezar | Frank Dancevic | 6-3, 6-4 | | match details | ||
| 28.07.15 | 1st round | Guilherme Clezar | Tom Jomby | 6-71, 7-5, 6-2 | | match details | ||
| 21.07.15 | 1st round | Alex Kuznetsov | Guilherme Clezar | 6-1, 6-3 | | match details | Binghamton Challenger | Hard |
| 14.01.15 | q 1 | Jan Mertl | Guilherme Clezar | 7-61, 6-72, 6-0 | | match details |  Melbourne | Hard |
| 08.01.15 | 1/4 | Jimmy Wang | Guilherme Clezar | 6-4, 6-3 | | match details |  Noumea Challenger | Hard |
| 07.01.15 | 2nd round | Guilherme Clezar | Vincent Millot | 4-6, 7-65, 6-4 | | match details | ||
| 05.01.15 | 1st round | Guilherme Clezar | Yuichi Sugita | 6-4, 6-2 | | match details | ||
| 04.01.15 | qual. | Guilherme Clezar | Gavin Van Peperzeel | 1-6, 6-0, 6-0 | | match details | ||
| 03.01.15 | q 1 | Guilherme Clezar | Nicolas N'Godrela | 6-2, 6-2 | | match details |