

Jan Choinski defeated Zizou Bergs 6-3 6-4 in the Meerbusch CH round of 16 on clay. The upset overturned the form book — Zizou Bergs came in ranked #33, leading the head-to-head 2–1. Jan Choinski narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-06-25 | Eastbourne | QF | grass | Zizou Bergs | 3-6 3-6 |
| 2024-06-17 | Queen's Club | Q1 | grass | Zizou Bergs | 7-6 6-7 6-2 |
| 2024-01-01 | Hong Kong | Q1 | hard | Jan Choinski | 6-2 6-2 |
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) · Bergs Z.: 3 days rest · 1 match, 17 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 clay field, opponent-adjusted over 52 weeks). About