

Jan Choinski advanced when Hugo Dellien retired 6-4 0-0 in the Buenos Aires CH round of 16. Jan Choinski narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-05-08 | Sweden F1 | F | clay | Jan Choinski | 7-5 4-6 6-2 |
| 2015-08-03 | Germany F10 | F | clay | Hugo Dellien | 6-3 6-3 |
| 2015-05-04 | Sweden F2 | R16 | clay | Hugo Dellien | 2-6 6-2 6-4 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Choinski J.: 6 days rest · 1 match, 39 games (7d) · Dellien H.: 7 days rest · 1 match, 16 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