Shinobu Asagoe defeated Catherine Barclay 6-3 6-1 in the Gifu 50K qualifying round on carpet. The upset overturned the form book — Catherine Barclay came in leading the head-to-head 1–0. Shinobu Asagoe claimed a first win over Catherine Barclay in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-12 | Seoul II 25K | QF | hard | Catherine Barclay | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.