Tomas Martinez defeated Leonardo Monferrer 6-4 7-5 in the M15 Buenos Aires 1 q64 on clay. The upset overturned the form book — Leonardo Monferrer came in leading the head-to-head 1–0. Tomas Martinez claimed a first win over Leonardo Monferrer in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-03-13 | M25 Asuncion 1 | R16 | clay | Leonardo Monferrer | 4-6 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.