Jelena Kostanic Tosic defeated Saori Obata 6-4 7-6 in the Japan Open round of 32 on hard. The upset overturned the form book — Saori Obata came in leading the head-to-head 1–0, defending last year's quarter-final. Jelena Kostanic Tosic claimed a first win over Saori Obata in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-06 | Tashkent | QF | hard | Saori Obata | 5-7 6-0 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (47 vs 15). ATP, WTA & Challenger.