Yoon Jeong Cho defeated Haruka Inoue 6-1 6-2 in the Nuriootpa 25K round of 32 on hard. The upset overturned the form book — Haruka Inoue came in leading the head-to-head 2–1. Yoon Jeong Cho narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-09-10 | Seoul 50K | SF | hard | Yoon Jeong Cho | 6-0 6-4 |
| 2000-05-01 | Gifu 50K | QF | carpet | Haruka Inoue | 7-5 7-5 |
| 1998-06-29 | Vaihingen 25K | R32 | clay | Haruka Inoue | 6-2 5-7 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.