Chiaki Okadaue defeated Kotomi Takahata 6-3 6-3 in the Pattaya 10K round of 32 on hard. The upset overturned the form book — Kotomi Takahata came in leading the head-to-head 1–0, but Chiaki Okadaue had been the form player, winning 4 of their last 7 on hard. Chiaki Okadaue claimed a first win over Kotomi Takahata in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-10 | Kurume 50K | R32 | grass | Kotomi Takahata | 7-5 3-6 7-6(4) |
Averages over each player's completed matches in the selected window (2 vs 3). 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