Player
🇺🇸 Stefan Kozlov
Career matches 610
Wins 340
Losses 270
Win rate 55.7%
Elo (current) 2,170 2026-04-22
Surface breakdown
Hard 56.9% 252W – 191L (443 matches)
Clay 56.8% 75W – 57L (132 matches)
Grass 37.1% 13W – 22L (35 matches)
Career form (last 10)
WLLWWWLLLW
Newest on left. Hover for details.
Head-to-head (top 5 opponents)
| Opponent | Played | W | L | W% |
|---|---|---|---|---|
| J.J. Wolf | 10 | 5 | 5 | 50% |
| Mitchell Krueger | 10 | 5 | 5 | 50% |
| Tennys Sandgren | 9 | 6 | 3 | 67% |
| Steve Johnson | 8 | 5 | 3 | 63% |
| Darian King | 7 | 1 | 6 | 14% |
Recent matches
601–610 of 610
| Date | Tournament | Round | Winner | Loser | Score | Surface |
|---|---|---|---|---|---|---|
| 2013-10-14 | USA F27 | R32 | Stefan Kozlov | Kevin King | 6-4 3-6 6-3 | Hard |
| 2013-10-07 | USA F26 | R16 | Sanam Singh | Stefan Kozlov | 6-4 6-3 | Hard |
| 2013-10-07 | USA F26 | R32 | Stefan Kozlov | Luis Fernando Ramirez | 6-1 6-4 | Hard |
| 2013-07-08 | Newport | R32 | Michal Przysiezny | Stefan Kozlov | 6-3 6-7(9) 6-4 | Grass |
| 2013-01-28 | USA F4 | Q4 | Stefan Kozlov | Joey B Burkhardt | 5-7 6-3 7-5 | Clay |
| 2013-01-28 | USA F4 | R32 | Kevin King | Stefan Kozlov | 6-3 6-4 | Clay |
| 2013-01-21 | USA F3 | R32 | Daniel Dutra Da Silva | Stefan Kozlov | 6-0 6-3 | Clay |
| 2012-07-23 | USA F21 | QF | Jason Jung | Stefan Kozlov | 6-2 7-6(1) | Hard |
| 2012-07-23 | USA F21 | R16 | Stefan Kozlov | Harrison Adams | 7-6(3) 2-6 7-6(1) | Hard |
| 2012-07-23 | USA F21 | R32 | Stefan Kozlov | Henrik Wiersholm | 0-6 6-3 6-3 | Hard |
Aliases
6
atp
- S. Kozlov
- Stefan Kozlov (ke64)
atp_short
- S. Kozlov (ke64)
itf
- Stefan Kozlov (800335858)
sackmann
- Stefan Kozlov (111578)
variant
- S Kozlov