Diego Junqueira defeated Bo Ram Cha 7-5 6-7 6-3 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 2–1. Diego Junqueira narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-06 | Argentina F5 | QF | clay | Diego Junqueira | 6-2 6-4 |
| 2003-08-25 | Argentina F2 | QF | clay | Bo Ram Cha | 6-4 6-2 |
| 2003-04-07 | Chile F1 | R16 | clay | Bo Ram Cha | 7-6(1) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.