Sebastian Prieto defeated Oscar Rodriguez Arg 6-2 6-4 in the Argentina B Masters 3 round of 32 on clay. The upset overturned the form book — Oscar Rodriguez Arg came in leading the head-to-head 1–0. Sebastian Prieto claimed a first win over Oscar Rodriguez Arg in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-10-08 | Chile 1 Masters 1 | R32 | clay | Oscar Rodriguez Arg | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.