Leandro Portmann defeated Gonzalo Villanueva 7-5 6-4 in the Argentina F15 round of 32 on clay. The upset overturned the form book — Gonzalo Villanueva came in leading the head-to-head 2–0. Leandro Portmann claimed a first win over Gonzalo Villanueva in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-09 | Argentina F1 | R32 | clay | Gonzalo Villanueva | 4-6 6-3 6-3 |
| 2013-07-08 | Argentina F11 | R32 | clay | Gonzalo Villanueva | 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.
Villanueva G.: 2 days rest · 3 matches, 70 games (7d). Higher means fresher. About