Risa Ozaki defeated Alison Bai 3-6 6-4 7-6 in the Margaret River 25K qualifying round on hard. The upset overturned the form book — Alison Bai came in leading the head-to-head 3–0. Risa Ozaki claimed a first win over Alison Bai in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-10-07 | W25 Toowoomba | R32 | hard | Alison Bai | 6-4 6-2 |
| 2019-03-27 | W25 Canberra | R32 | clay | Alison Bai | 6-2 6-4 |
| 2015-02-02 | Burnie $50K | R16 | hard | Alison Bai | 6-1 3-6 6-4 |
Averages over each player's completed matches in the selected window (183 vs 63). 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