Cristian Villagran defeated Agustin Tarantino 6-1 6-3 in the Argentina F3 qualifying round on clay. The upset overturned the form book — Agustin Tarantino came in leading the head-to-head 1–0, but Cristian Villagran had been the form player, winning 8 of their last 10 on clay. Cristian Villagran claimed a first win over Agustin Tarantino in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-10-20 | Argentina F4 | R16 | clay | Agustin Tarantino | 3-6 6-4 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.