Rafael De Mesa defeated Diego Ayala 7-5 7-6 in the Brazil F2 round of 32 on clay. The upset overturned the form book — Diego Ayala came in leading the head-to-head 1–0. Rafael De Mesa claimed a first win over Diego Ayala in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-02-18 | USA F4 | R32 | hard | Diego Ayala | 7-6(4) 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.