

Jan Choinski defeated Zizou Bergs 6-2 6-2 in the Hong Kong qualifying round 1 on hard. The upset overturned the form book — Zizou Bergs came in ranked #37, leading the head-to-head 2–0. Jan Choinski claimed a first win over Zizou Bergs in three meetings, narrowing the head-to-head to 2–1.
| 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(3) 6-7(5) 6-2 |
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
Averages over each player's completed matches in the selected window (165 vs 157). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Choinski J.: 1 day rest · 3 matches, 67 games (7d) · Bergs Z.: 7 days rest · 1 match, 54 games (7d). Higher means fresher. About