Name: Stefan Kozlov
Country: USA
Birthdate: 01.02.98, 26 years
ATP ranking: 451
TOP ranking's position: 103 (18.07.22, 533 points)
Points: 97
Prize money: 996773 $
Matches total: 578
Win: 328
%: 56.75 %
Country: USA
Birthdate: 01.02.98, 26 years
ATP ranking: 451
TOP ranking's position: 103 (18.07.22, 533 points)
Points: 97
Prize money: 996773 $
Matches total: 578
Win: 328
%: 56.75 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 24/12 | 4/3 | 17/8 | 3/1 | 0/0 | 0/0 | 0/0 |
| 2023 | 6/12 | 1/6 | 0/0 | 5/6 | 0/0 | 0/0 | 0/0 |
| 2022 | 21/34 | 14/18 | 0/5 | 4/5 | 0/0 | 3/6 | 0/0 |
| 2021 | 41/15 | 20/12 | 5/2 | 16/1 | 0/0 | 0/0 | 0/0 |
| 2020 | 13/13 | 7/8 | 0/0 | 6/5 | 0/0 | 0/0 | 0/0 |
| 2019 | 22/18 | 14/9 | 4/4 | 4/5 | 0/0 | 0/0 | 0/0 |
| 2018 | 13/26 | 4/12 | 7/6 | 1/4 | 0/0 | 1/4 | 0/0 |
| 2017 | 31/29 | 15/14 | 8/8 | 3/2 | 0/0 | 5/5 | 0/0 |
| 2016 | 58/31 | 28/15 | 10/6 | 16/5 | 0/0 | 4/5 | 0/0 |
| 2015 | 44/27 | 15/12 | 10/5 | 17/8 | 0/0 | 2/2 | 0/0 |
| 2014 | 33/19 | 23/12 | 5/4 | 0/2 | 0/0 | 5/1 | 0/0 |
| 2013 | 17/11 | 3/3 | 11/6 | 0/0 | 0/0 | 3/2 | 0/0 |
| 2012 | 5/3 | 4/2 | 0/0 | 0/0 | 0/0 | 1/1 | 0/0 |
| TOTAL | 328/250 | 152/126 | 77/54 | 75/44 | 0/0 | 24/26 | 0/0 |
| perc. % | 56.75 % | 54.68 % | 58.78 % | 63.03 % | 0 % | 48 % | 0 % |
Stefan Kozlov / scheduled / last
| no matches found |
Stefan Kozlov form / year 2013
Stefan Kozlov / year 2013
| 11.11.13 | 1st round | Stefan Kozlov | Oleg Dmitriev | 6-4, 7-5 |  | match details |  USA F31 | Clay |
| 11.11.13 | 2nd round | Stefan Kozlov | Janis Podzus | 6-4, 6-4 | | match details | ||
| 11.11.13 | 1/4 | Gregory Ouellette | Stefan Kozlov | 6-4, 7-64 |  | match details | ||
| 04.11.13 | q 2 | Stefan Kozlov | Jake Devine | 6-4, 7-5 | | match details | USA F30 | Clay |
| 04.11.13 | qual. | Stefan Kozlov | Patrick Daciek | 5-7, 6-1, 6-4 | | match details | ||
| 04.11.13 | 1/4 | Gonzalo Escobar | Stefan Kozlov | 7-68, 6-4 | | match details | ||
| 04.11.13 | 1st round | Stefan Kozlov | Ruan Roelofse | 6-3, 6-4 | | match details | ||
| 04.11.13 | q 1 | Stefan Kozlov | Andrew Korinek | 6-2, 6-4 | | match details | ||
| 04.11.13 | 2nd round | Stefan Kozlov | Vadym Kalyuzhnyy | 7-5, 6-3 | | match details | ||
| 28.10.13 | 1st round | Martins Podzus | Stefan Kozlov | 6-4, 6-2 | | match details | USA F29 | Clay |
| 14.10.13 | 2nd round | Stefan Kozlov | Alexander Zverev | 6-2, 6-0 | | match details | USA F27 | Hard |
| 14.10.13 | 1/4 | Austin Krajicek | Stefan Kozlov | 6-3, 6-2 | | match details | ||
| 14.10.13 | 1st round | Stefan Kozlov | Kevin King | 6-4, 3-6, 6-3 | | match details | ||
| 07.10.13 | 2nd round | Sanam Singh | Stefan Kozlov | 6-4, 6-3 | | match details | USA F26 | Hard |
| 07.10.13 | 1st round | Stefan Kozlov | Luis Fernando Ramirez | 6-1, 6-4 | | match details | ||
| 01.09.13 | 1st round | Lucas Miedler | Stefan Kozlov | 6-1, 6-2 | | match details | U.S. Open | Hard |
| 08.07.13 | 1st round | Michal Przysiezny | Stefan Kozlov | 6-3, 6-79, 6-4 | | match details | Newport | Grass |
| 04.07.13 | 1/4 | Kyle Edmund | Stefan Kozlov | 4-6, 6-1, 6-3 | | match details |  Wimbledon (juniors) | Grass |
| 03.07.13 | 3rd round | Stefan Kozlov | Alexander Zverev | 1-6, 6-4, 4-0, Alexander Zverev - retired | | match details | ||
| 02.07.13 | 2nd round | Stefan Kozlov | Lucas Gomez | 6-2, 6-3 | | match details | ||
| 01.07.13 | 1st round | Stefan Kozlov | Joshua Sapwell | 6-3, 6-3 | | match details | ||
| 04.06.13 | 2nd round | Gianluigi Quinzi | Stefan Kozlov | 3-6, 6-1, 6-4 | | match details |  French Open | Clay |
| 02.06.13 | 1st round | Stefan Kozlov | Matej Maruscak | 7-5, 6-3 | | match details | ||
| 28.01.13 | 1st round | Kevin King | Stefan Kozlov | 6-3, 6-4 | | match details | USA F4 | Clay |
| 28.01.13 | q 2 | Stefan Kozlov | Mark Mierloi | 6-2, 6-3 | | match details | ||
| 28.01.13 | qual. | Stefan Kozlov | Joey B Burkhardt | 5-7, 6-3, 7-5 | | match details | ||
| 28.01.13 | q 1 | Stefan Kozlov | Edward Elliott | 6-4, 6-3 | | match details | ||
| 21.01.13 | 1st round | Daniel Dutra Da Silva | Stefan Kozlov | 6-0, 6-3 | | match details | USA F3 | Clay |