Bo Ram Cha defeated Diego Cristin 4-6 6-4 6-1 in the Argentina F1 round of 32 on clay. The upset overturned the form book — Diego Cristin came in leading the head-to-head 1–0, but Bo Ram Cha had been the form player, winning 3 of their last 10 on clay. Bo Ram Cha claimed a first win over Diego Cristin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-26 | Venezuela 1 Satellite 4 | R16 | hard | Diego Cristin | 6-4 4-6 6-1 |