Horacio Zeballos defeated Bo Ram Cha 7-6 5-7 7-5 in the Argentina F4 round of 32 on clay. The upset overturned the form book — Bo Ram Cha came in leading the head-to-head 1–0. Horacio Zeballos claimed a first win over Bo Ram Cha in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-05-03 | Argentina F2 | R16 | clay | Bo Ram Cha | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.