

Jan Choinski advanced when Benjamin Hassan retired 6-2 2-0 in the Mauthausen CH round of 32. Jan Choinski extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-01-15 | Australian Open | Q1 | hard | Benjamin Hassan | 6-4 6-0 |
| 2017-08-14 | Germany F11 | SF | clay | Jan Choinski | 6-1 6-2 |
Averages over each player's completed matches in the selected window (164 vs 118). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Choinski J.: 2 days rest · 1 match, 19 games (7d) · Hassan B.: 1 day rest · 6 matches, 131 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About