Saori Obata defeated Bryanne Stewart 6-1 7-5 in the Australian Open q128 on hard. The result followed the form book — Saori Obata came in leading the head-to-head 4–0, defending last year's round of 128. Saori Obata extended the head-to-head to 5–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-11-19 | Nuriootpa 25K | SF | hard | Saori Obata | 6-2 6-2 |
| 2001-05-07 | Fukuoka 50K | R32 | grass | Saori Obata | 6-4 6-0 |
| 2000-10-16 | Shanghai | QF | hard | Saori Obata | 6-1 6-3 |
| 2000-04-17 | Fresno 25K | R16 | hard | Saori Obata | 7-6(4) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.