Match log updated: 2026-05-28 18:14 UTC
Stefan Kozlov — ATP Match Log
Main draw matches: 1 | W: 0 | L: 1 | Win %: 0.0%
| Opponent | Score | Result | H2H | Match Data | Date ↑ | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| Johannes Haerteis | 5-0 (ret.) | W | H2H | Match data | Jan 7, 2021* | Q1 | Delray Beach Open | ATP 250 | Hard |
| Donald Young | 6-4 4-6 4-6 | L | H2H | Match data | Jan 7, 2021* | Q2 | Delray Beach Open | ATP 250 | Hard |
| Jordi Arconada | 6-4 6-1 | W | — | Match data | Mar 15, 2021 | Q1 | Mexican Open | ATP 500 | Hard |
| Joao Sousa | 6-2 2-6 6-3 | W | H2H | Match data | Mar 15, 2021 | Q2 | Mexican Open | ATP 500 | Hard |
| Botic van de Zandschulp | 6-3 1-0 (ret.) | W | H2H | Match data | Mar 16, 2021* | Q3 | Mexican Open | ATP 500 | Hard |
| Cameron Norrie | 3-6 3-6 | L | H2H | Match data | Mar 17, 2021* | R32 | Mexican Open | ATP 500 | Hard |
| Bernabe Zapata Miralles | 5-7 6-1 3-6 | L | H2H | Match data | Aug 30, 2021 | Q1 | US Open | Grand Slam | Hard |
| Jason Jung | 6-3 3-6 5-2 (ret.) | W | H2H | Match data | Oct 7, 2021* | Q1 | Indian Wells Open | Masters 1000 | Hard |
| Christopher Eubanks | 6-2 0-6 5-7 | L | H2H | Match data | Oct 8, 2021* | Q2 | Indian Wells Open | Masters 1000 | Hard |
8 qualifying matches shown in the table; qualifying is excluded from main-draw summaries and leaderboards. Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.