Rafael Serpa Guinazu defeated Juan Pablo Brzezicki 7-5 6-3 in the Argentina F8 final on clay. The upset overturned the form book — Juan Pablo Brzezicki came in leading the head-to-head 1–0. Rafael Serpa Guinazu claimed a first win over Juan Pablo Brzezicki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-31 | Argentina 2 Masters 3 | R32 | clay | Juan Pablo Brzezicki | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.