Isabella Kruger defeated Zhibek Kulambayeva 6-1 6-3 in the W60 Brescia qualifying round of 16 on clay. The upset overturned the form book — Zhibek Kulambayeva came in leading the head-to-head 1–0. Isabella Kruger claimed a first win over Zhibek Kulambayeva in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-04-30 | W15 Cairo 7 | QF | clay | Zhibek Kulambayeva | 6-3 1-6 6-2 |
Averages over each player's completed matches in the selected window (44 vs 200). 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