Oscar Gabriel Ortiz defeated Nicolas Bruna 6-3 6-0 in the M25 Mendoza 1 q64 on clay. The upset overturned the form book — Nicolas Bruna came in leading the head-to-head 1–0, but Oscar Gabriel Ortiz had been the form player, winning 6 of their last 10 on clay. Oscar Gabriel Ortiz claimed a first win over Nicolas Bruna in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-26 | M25 Lujan 1 | R32 | clay | Nicolas Bruna | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.