Matias Oneille defeated Martin Vassallo Arguello 2-6 6-4 7-6 in the Argentina F2 round of 32 on clay. The result followed the form book — Matias Oneille came in leading the head-to-head 1–0. Matias Oneille extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-05-15 | Argentina F5 | QF | clay | Matias Oneille | 4-6 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.