Ganna Poznikhirenko defeated Katja Wiersholm 6-3 6-7 6-4 in the W60 Berkeley qualifying round of 32 on hard. The upset overturned the form book — Katja Wiersholm came in leading the head-to-head 1–0. Ganna Poznikhirenko claimed a first win over Katja Wiersholm in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-09-19 | W60 Berkeley | Q32 | hard | Katja Wiersholm | 6-4 2-6 10-1 |
Averages over each player's completed matches in the selected window (37 vs 18). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About