Andres Dellatorre defeated Diego Junqueira 5-7 6-4 6-0 in the Argentina F7 qualifying round on clay. The upset overturned the form book — Diego Junqueira came in leading the head-to-head 3–0, but Andres Dellatorre had been the form player, winning 5 of their last 9 on clay. Andres Dellatorre claimed a first win over Diego Junqueira in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-27 | Argentina F5 | R32 | clay | Diego Junqueira | 2-6 6-0 3-0 |
| 1999-07-31 | Argentina 2 Masters 3 | R16 | clay | Diego Junqueira | 6-4 7-6 |
| 1999-07-31 | Argentina 2 Masters 4 | R32 | clay | Diego Junqueira | 2-6 7-5 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.