Martin Vassallo Arguello defeated Luiz Carvalho 6-1 3-6 6-3 in the Argentina 2 Masters 4 qualifying round on clay. The result followed the form book — Martin Vassallo Arguello came in leading the head-to-head 1–0. Martin Vassallo Arguello extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-31 | Argentina 2 Masters 2 | R16 | clay | Martin Vassallo Arguello | 6-4 2-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.