Zi Yan defeated Miho Saeki 6-2 6-4 in the Japan Open round of 32 on hard. The upset overturned the form book — Miho Saeki came in leading the head-to-head 1–0, defending last year's round of 32, but Zi Yan had been the form player, winning 4 of their last 7 on hard. Zi Yan claimed a first win over Miho Saeki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-11-07 | Shenzhen 50K | SF | hard | Miho Saeki | 6-7(2) 7-6(5) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.