Yuka Yoshida defeated Kerry Anne Guse 0-6 7-5 6-1 in the Key Biscayne round of 128 on hard. The upset overturned the form book — Kerry Anne Guse came in leading the head-to-head 1–0, but Yuka Yoshida had been the form player, winning 2 of their last 4 on hard. Yuka Yoshida claimed a first win over Kerry Anne Guse in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-26 | Gifu 50K | QF | carpet | Kerry Anne Guse | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.