Yoon Jeong Cho defeated Shiho Hisamatsu 6-3 7-6 in the Seoul 50K qualifying round on hard. Yoon Jeong Cho extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-11-15 | Nuriootpa 25K | SF | hard | Yoon Jeong Cho | 7-6(3) 6-3 |
| 2004-03-29 | Augusta GA 25K | R32 | hard | Shiho Hisamatsu | 7-5 7-6(3) |
Averages over each player's completed matches in the selected window (15 vs 3). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About