ATP Player
Stefan Kozlov
USA · Born Feb 1, 1998 (age 28) · Right-handed · 183 cm
Current rank
#321
169 pts · Sep 21, 2026 (est.)
Career high
#103
Jul 18, 2022
2022 W-L
4-8
0 titles
Career W-L
9-26
25.7%
Ranking history
Recent matches
All 35 matches- L
- Lvs Daniil Medvedev6-2 6-4 6-0
- Lvs Jack Draper7-5 6-2Washington 2022 · R64 · opp. rank 81
- Lvs Steve Johnson7-5 6-3
| Date | Tournament | Round | W/L | Opponent | Score |
|---|---|---|---|---|---|
| Sep 19, 2022 | San Diego ATP Tour · Hard | R32 | L | J J Wolf(8) Rank 73 | 6-2 7-6(6) |
| Aug 29, 2022 | US Open Grand Slam · Hard | R128 | L | Rank 1 | 6-2 6-4 6-0 |
| Aug 1, 2022 | Washington ATP Tour · Hard | R64 | L | Rank 81 | 7-5 6-2 |
| Jul 11, 2022 | Newport ATP Tour · Grass | R32 | L | Rank 95 | 7-5 6-3 |
Results by tournament
- Won
- Final
- Semis
- Quarters
- Last 16 / RR
- Earlier
- A = did not play
| Event | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | Titles | W–L | Win % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grand Slams | |||||||||||||
| AO (Australian Open) | R64 | A | A | A | A | A | A | A | A | A | 0 / 1 | 1–1 | 50% |
| WIM (Wimbledon) | R128 | A | · | A | A | A | A | A | A | A | 0 / 1 | 0–1 | 0% |
| USO (US Open) | R128 | A | A | A | A | A | A | A | A | A | 0 / 1 | 0–1 | 0% |
| W–L | 1–3 | 0 / 3 | 1–3 | 25% | |||||||||
| Masters 1000 | |||||||||||||
| IW (Indian Wells Masters) | A | A | · | A | A | R128 | A | A | A | A | 0 / 1 | 0–1 | 0% |
| CIN (Cincinnati Masters) | A | A | A | A | A | R64 | A | A | A | A | 0 / 1 | 0–1 | 0% |
| W–L | 0–2 | 0 / 2 | 0–2 | 0% | |||||||||
| Other tournaments | |||||||||||||
| DEL (Delray Beach) | QF | A | R32 | A | A | R32 | A | R32 | A | A | 0 / 4 | 2–4 | 33% |
| Newport (Newport) | R32 | A | · | A | A | R32 | R16 | A | A | R32 | 0 / 4 | 1–4 | 20% |
| W–L | 2–2 | 0–1 | 0–2 | 1–1 | 0–1 | 0–1 | 0 / 8 | 3–8 | 27% | ||||
Season by season
Full stats| Season | W-L | Titles | YE rankYear-end rank |
|---|---|---|---|
| 2022 | 4-8 | 0 | 198 |
| 2021 | 0-1 | 0 | 159 |
| 2020 | 0-1 | 0 | 371 |
| 2018 | 0-1 | 0 | 316 |
| 2017 | 2-9 | 0 | 167 |
| 2016 | 3-2 | 0 | 116 |
| 2015 | 0-2 | 0 | 351 |
| 2014 | 0-1 | 0 | 467 |