Gail Biggs defeated Yoon Jeong Cho 6-2 7-6 in the Taipei 50K qualifying round on hard. The upset overturned the form book — Yoon Jeong Cho came in leading the head-to-head 2–0, but Gail Biggs had been the form player, winning 5 of their last 10 on hard. Gail Biggs claimed a first win over Yoon Jeong Cho in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-04 | Seoul I 25K | R32 | clay | Yoon Jeong Cho | 6-4 3-6 6-4 |
| 1996-05-06 | Seoul II 25K | R32 | clay | Yoon Jeong Cho | 6-2 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.