Yoon Jeong Cho defeated Patricia Wartusch 6-7 6-2 6-0 in the Auckland round of 32 on hard. The upset overturned the form book — Patricia Wartusch came in leading the head-to-head 1–0. Yoon Jeong Cho claimed a first win over Patricia Wartusch in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-06-01 | Tashkent 50K | R32 | hard | Patricia Wartusch | 7-6 6-3 |
Averages over each player's completed matches in the selected window (15 vs 2). 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. About