Magui Serna defeated Miho Saeki 6-3 6-7 7-5 in the Australian Open round of 128 on hard. The upset overturned the form book — Miho Saeki came in leading the head-to-head 2–1. Magui Serna narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-03-05 | Indian Wells | R64 | hard | Miho Saeki | 4-6 7-6 6-2 |
| 1998-02-03 | Tokyo | R32 | hard | Miho Saeki | 3-6 6-3 6-3 |
| 1997-08-11 | Canadian Open | R32 | hard | Magui Serna | 7-6 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.