Gerardo Parino defeated Mariano Zabaleta 6-4 6-7 7-5 in the Argentina 3 Masters 2 round of 32 on clay. The upset overturned the form book — Mariano Zabaleta came in leading the head-to-head 1–0. Gerardo Parino claimed a first win over Mariano Zabaleta in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-08-13 | Argentina 3 Masters 3 | R32 | clay | Mariano Zabaleta | 6-1 3-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.