Gonzalo Villanueva defeated Gabriel Alejandro Hidalgo 6-4 6-4 in the M15 Lambare 1 semi-final on clay. The upset overturned the form book — Gabriel Alejandro Hidalgo came in leading the head-to-head 3–1, but Gonzalo Villanueva had been the form player, winning 6 of their last 8 on clay. Gonzalo Villanueva narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-21 | Argentina F2 | R16 | clay | Gonzalo Villanueva | 6-1 6-0 |
| 2013-09-16 | Argentina F19 | R16 | clay | Gabriel Alejandro Hidalgo | 6-2 6-3 |
| 2013-08-19 | Argentina F15 | R32 | clay | Gabriel Alejandro Hidalgo | 6-0 7-5 |
| 2013-07-15 | Argentina F12 | R32 | clay | Gabriel Alejandro Hidalgo | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.
Villanueva G.: 4 days rest · 2 matches, 40 games (7d). Higher means fresher. About