Stefan Kozlov is 15–18 in 2026 across 18 tournaments. Career: 73–84 (46.5%) with 2 titles.
Stefan Kozlov's 2026 season
| Tournament | Surface | Result | W–L | Dates |
|---|---|---|---|---|
| Sioux Falls, USA | grass | R32 | 1–0 | Oct 27 |
| Columbus, USA | grass | R16 | 1–1 | Sep 29 |
| San Diego 2, USA | hard | R32 | 0–1 | Sep 22 |
| Tiburon, USA | grass | R32 | 0–1 | Sep 15 |
| Brownsburg, USA | hard | R16 | 1–1 | Aug 12 |
| Washington, USA | hard | QL1 | 0–1 | Jul 25 |
| Bloomfield Hills, USA | hard | R32 | 1–2 | Jul 19 |
| Pozoblanco, Spain | hard | R32 | 0–1 | Jul 14 |
| Newport, USA | grass | R16 | 3–1 | Jul 5 |
| Valencia, Spain | grass | QLF | 1–1 | May 11 |
| Savannah, USA | grass | R16 | 1–1 | Apr 20 |
| Tallahassee, USA | grass | R32 | 2–1 | Apr 12 |
Showing 12 of 18 2026 tournaments.
2026 serve & return
Stefan Kozlov ranks in the 43th percentile on serve. See every split.
Full career history back to their first tour match, surface and opponent splits, rivalries, per-match serve and return numbers, percentile ratings and the custom model.
Frequently asked questions about Stefan Kozlov
How old is Stefan Kozlov?
Stefan Kozlov is 28 years old, born February 1, 1998.
Where is Stefan Kozlov from?
Stefan Kozlov represents USA.
What is Stefan Kozlov's ranking?
Stefan Kozlov is ranked No. 284 on the ATP singles ranking with 195 points.
What is Stefan Kozlov's career record?
Stefan Kozlov has a career singles record of 73–84 (46.5%) with 2 titles from 2 finals.
How is Stefan Kozlov doing in 2026?
Stefan Kozlov is 15–18 in 2026 with 0 titles from 18 tournaments.
How tall is Stefan Kozlov?
Stefan Kozlov is 6ft 0in (183 cm) tall.
Is Stefan Kozlov left-handed or right-handed?
Stefan Kozlov is right-handed.
What is Stefan Kozlov's career-high ranking?
Stefan Kozlov reached a career-high of No. 103 on July 1, 2022.
When did Stefan Kozlov turn pro?
Stefan Kozlov turned professional in 2013.
Who did Stefan Kozlov play last?
Stefan Kozlov beat Murphy Cassone at Sioux Falls, USA on October 27, 2026.
Stats updated daily · 2026 season through October 27, 2026