Bo Ram Cha defeated Diego Junqueira 6-4 6-2 in the Argentina F2 qualifying round on clay. The upset overturned the form book — Diego Junqueira 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 |
|---|---|---|---|---|---|
| 2004-09-06 | Argentina F5 | QF | clay | Diego Junqueira | 6-2 6-4 |
| 2004-08-30 | Argentina F4 | R32 | clay | Diego Junqueira | 7-5 6-7(3) 6-3 |
| 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.