

Hugo Dellien defeated Jan Choinski 2-6 6-1 6-2 in the Savannah CH round of 32 on clay. The upset overturned the form book — Jan Choinski came in ranked #75. Hugo Dellien extended the head-to-head to 3–1.
| 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
Dellien H.: 3 days rest · 2 matches, 53 games (7d) · Choinski J.: 6 days rest · 1 match, 30 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