Saori Obata defeated Maiko Inoue 6-3 6-3 in the Noda 25K round of 16 on hard. The upset overturned the form book — Maiko Inoue came in leading the head-to-head 1–0. Saori Obata claimed a first win over Maiko Inoue in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-26 | Gifu 50K | R32 | carpet | Maiko Inoue | 5-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.