Bo Ram Cha defeated Rodolfo Daruich 6-3 4-6 7-6 in the Argentina 1 round of 16 on clay. The upset overturned the form book — Rodolfo Daruich came in leading the head-to-head 2–1. Bo Ram Cha narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-08-22 | Argentina F8 | R32 | clay | Rodolfo Daruich | 3-6 6-4 6-0 |
| 2005-04-25 | Argentina F3 | R32 | clay | Rodolfo Daruich | 0-6 6-2 6-2 |
| 2004-04-26 | Argentina F1 | SF | clay | Bo Ram Cha | 6-2 6-0 |