Rafael De Mesa defeated Juan Pablo Guzman 0-6 7-5 6-2 in the Peru F1 qualifying round on clay. The upset overturned the form book — Juan Pablo Guzman came in leading the head-to-head 1–0. Rafael De Mesa claimed a first win over Juan Pablo Guzman in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-03-31 | USA F7 | R32 | hard | Juan Pablo Guzman | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.