Matias Oneille defeated Agustin Tarantino 6-2 6-4 in the Argentina F8 qualifying round on clay. The upset overturned the form book — Agustin Tarantino came in leading the head-to-head 1–0, but Matias Oneille had been the form player, winning 5 of their last 10 on clay. Matias Oneille claimed a first win over Agustin Tarantino in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-09-03 | Argentina F10 | QF | clay | Agustin Tarantino | 7-6(4) 1-6 7-5 |