Name: Stefan Kozlov
Country: USA
Birthdate: 01.02.98, 27 years
ATP ranking: 488
TOP ranking's position: 103 (18.07.22, 533 points)
Points: 86
Prize money: 1.026.233 $
Matches total: 613
Win: 350
%: 57.1 %
Country: USA
Birthdate: 01.02.98, 27 years
ATP ranking: 488
TOP ranking's position: 103 (18.07.22, 533 points)
Points: 86
Prize money: 1.026.233 $
Matches total: 613
Win: 350
%: 57.1 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2025 | 9/5 | 2/3 | 3/0 | 4/2 | 0/0 | 0/0 | 0/0 |
| 2024 | 37/20 | 16/9 | 17/8 | 4/3 | 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 | 350/263 | 166/135 | 80/54 | 80/48 | 0/0 | 24/26 | 0/0 |
| perc. % | 57.1 % | 55.15 % | 59.7 % | 62.5 % | 0 % | 48 % | 0 % |
Stefan Kozlov / Fixtures
| no matches found |
Stefan Kozlov form / year 2020 / surface: Hard
Stefan Kozlov / year 2020 / surface: Hard
| 17.11.20 | 1st round | Thiago Moura Monteiro | Stefan Kozlov | 6-1, 6-3 |  | match details |  Orlando Challenger | Hard |
| 15.11.20 | qual. | Stefan Kozlov | Kevin King | 7-61, 6-77, 6-4 |  | match details | ||
| 14.11.20 | q 1 | Stefan Kozlov | Martin Damm | 6-4, 6-72, 6-4 | | match details | ||
| 07.11.20 | q 1 | Nicolas Mejia | Stefan Kozlov | 2-6, 7-5, 7-62 | | match details | Cary Challenger | Hard |
| 04.10.20 | 1/2 | Nuno Borges | Stefan Kozlov | 6-3, 7-5 | | match details |  M25 Porto | Hard |
| 03.10.20 | 1/4 | Stefan Kozlov | Dayne Kelly | 6-2, 6-2 | | match details | ||
| 01.10.20 | 2nd round | Stefan Kozlov | Adrian Menendez-Maceiras | 7-5, 6-3 | | match details | ||
| 30.09.20 | 1st round | Stefan Kozlov | Michail Pervolarakis | 6-1, 6-4 | | match details | ||
| 24.09.20 | 1st round | Stefan Kozlov | Alexis Musialek | 7-5, 6-0 | | match details | M15 Castelo | Hard |
| 24.09.20 | 2nd round | Nicolas Moreno De Alboran | Stefan Kozlov | 6-3, 6-4 | | match details | ||
| 09.09.20 | 1st round | Robert Strombachs | Stefan Kozlov | 6-4, 6-2 | | match details | M15 Sintra | Hard |
| 18.02.20 | 1st round | Ugo Humbert | Stefan Kozlov | 6-75, 6-3, 6-1 | | match details | Delray Beach | Hard |
| 16.02.20 | qual. | Emilio Gomez | Stefan Kozlov | 6-3, 6-2 | | match details | ||
| 15.02.20 | q 1 | Stefan Kozlov | Alex Bolt | 4-6, 6-4, 6-2 | | match details | ||
| 23.01.20 | 1st round | Maximiliano Estevez | Stefan Kozlov | 5-7, 1-1, Stefan Kozlov - retired | | match details |  M15 Cancun | Hard |
