

Jan Choinski defeated Joao Fonseca 0-6 6-1 6-2 in the Helsinki CH round of 16 on hard. The upset overturned the form book — Joao Fonseca came in ranked #26. Jan Choinski extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-04-01 | Estoril | R32 | clay | Jan Choinski | 6-2 6-7 6-4 |
Averages over each player's completed matches in the selected window (164 vs 144). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Choinski J.: 3 days rest · 1 match, 19 games (7d) · Fonseca J.: 7 days rest · 1 match, 23 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About