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 2024 / surface: Hard
Stefan Kozlov / year 2024 / surface: Hard
| 06.08.24 | 1st round | Nishesh Basavareddy | Stefan Kozlov | 2-6, 6-4, 6-2 |  | match details |  Lincoln Challenger | Hard |
| 05.08.24 | qual. | Stefan Kozlov | Ernesto Escobedo | 6-3, 6-1 |  | match details | ||
| 04.08.24 | q 1 | Stefan Kozlov | Collin Altamirano | 6-4, 7-64 | | match details | ||
| 30.07.24 | 1st round | Bernard Tomic | Stefan Kozlov | 6-4, 3-6, 6-3 | | match details | Lexington Challenger | Hard |
| 29.07.24 | qual. | Stefan Kozlov | Stefan Dostanic | 7-63, 0-6, 7-5 | | match details | ||
| 28.07.24 | q 1 | Stefan Kozlov | Ryuki Matsuda | 6-2, 6-3 | | match details | ||
| 17.07.24 | 1st round | Nicolas Mejia | Stefan Kozlov | 6-1, 6-2 | | match details |  Granby Challenger | Hard |
| 15.07.24 | qual. | Stefan Kozlov | Cooper Williams | 6-1, 7-63 | | match details | ||
| 14.07.24 | q 1 | Stefan Kozlov | Victor Lilov | 6-2, 6-1 | | match details | ||
| 06.07.24 | 1/2 | Nishesh Basavareddy | Stefan Kozlov | 6-2, 2-0, Stefan Kozlov - retired | | match details | Bloomfield Hills | Hard |
| 05.07.24 | 1/4 | Stefan Kozlov | Jeff Wolf | 6-4, 6-4 | | match details | ||
| 03.07.24 | 2nd round | Stefan Kozlov | Tung-Lin Wu | 5-7, 6-3, 4-0, Tung-Lin Wu - retired | | match details | ||
| 02.07.24 | 1st round | Stefan Kozlov | Michael Zheng | 4-6, 7-5, 6-1 | | match details | ||
| 01.07.24 | qual. | Stefan Kozlov | William Grant | 6-1, 6-4 | | match details | ||
| 30.06.24 | q 1 | Stefan Kozlov | Nicholas Herdoiza | 6-3, 6-1 | | match details | ||
| 05.06.24 | 2nd round | Chak Lam Coleman Wong | Stefan Kozlov | 4-6, 6-4, 4-1, Stefan Kozlov - retired | | match details | Tyler Challenger | Hard |
| 03.06.24 | 1st round | Stefan Kozlov | Blaise Bicknell | 6-3, 6-3 | | match details | ||
| 28.05.24 | 1st round | Rudy Quan | Stefan Kozlov | 6-1, 7-5 | | match details | Little Rock | Hard |
| 11.02.24 | q 1 | Shintaro Mochizuki | Stefan Kozlov | 6-3, 7-62 | | match details | Delray Beach | Hard |
| 23.01.24 | qual. | Bruno Kuzuhara | Stefan Kozlov | 7-66, 6-4 | | match details | Indian Wells | Hard |
| 21.01.24 | q 1 | Stefan Kozlov | Alafia Ayeni | 6-4, 6-3 | | match details | ||
| 18.01.24 | 2nd round | Paul Jubb | Stefan Kozlov | 4-6, 6-3, 6-3 | | match details | Indian Wells | Hard |
| 16.01.24 | 1st round | Stefan Kozlov | Gabriel Debru | 6-1, 3-6, 6-2 | | match details | ||
| 15.01.24 | q 1 | Stefan Kozlov | Ezekiel Clark | 2-6, 7-67, 6-4 | | match details | ||
| 15.01.24 | qual. | Stefan Kozlov | Edan Leshem | 7-5, 6-3 | | match details |
