Juan Pablo Guzman defeated Rafael De Mesa 6-2 6-3 in the USA F7 round of 32 on hard. The upset overturned the form book — Rafael De Mesa came in leading the head-to-head 1–0. Juan Pablo Guzman claimed a first win over Rafael De Mesa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-31 | Peru F1 | QF | clay | Rafael De Mesa | 0-6 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.