Martin Vassallo Arguello defeated Miguel Tobon 6-4 6-2 in the Ecuador F1 qualifying round on clay. Martin Vassallo Arguello extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-09-04 | Peru F2 | R32 | clay | Martin Vassallo Arguello | 3-6 6-0 6-0 |
| 1999-09-20 | Bolivia F1 | SF | clay | Miguel Tobon | 6-3 2-6 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.