Heike Janse Van Vuuren defeated Michika Ozeki 6-0 6-2 in the W15 Hillcrest 1 round of 16 on hard. The upset overturned the form book — Michika Ozeki came in ranked #599, leading the head-to-head 1–0, but Heike Janse Van Vuuren had been the form player, winning 5 of their last 10 on hard. Heike Janse Van Vuuren claimed a first win over Michika Ozeki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-07-17 | W15 Hillcrest 2 | R16 | hard | Michika Ozeki | 6-2 6-2 |
Averages over each player's completed matches in the selected window (5 vs 57). 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