Sanda Mamic defeated Catalina Castano 7-5 6-4 in the Seoul round of 16 on hard. The upset overturned the form book — Catalina Castano came in leading the head-to-head 1–0. Sanda Mamic claimed a first win over Catalina Castano in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-09-01 | Fano 50K | QF | clay | Catalina Castano | 6-7(6) 6-2 |
Averages over each player's completed matches in the selected window (13 vs 79). 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