Rafael Serpa Guinazu defeated Julio Silva 6-3 6-2 in the Argentina 3 round of 32 on clay. The result followed the form book — Rafael Serpa Guinazu came in leading the head-to-head 1–0. Rafael Serpa Guinazu extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-11-15 | Chile F4 | QF | clay | Rafael Serpa Guinazu | 6-1 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.