Gabriel Alejandro Hidalgo defeated Pablo Galdon 6-3 3-6 6-0 in the Argentina F3 qualifying round on clay. The upset overturned the form book — Pablo Galdon came in leading the head-to-head 3–0, but Gabriel Alejandro Hidalgo had been the form player, winning 5 of their last 10 on clay. Gabriel Alejandro Hidalgo claimed a first win over Pablo Galdon in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-20 | Argentina F7 | SF | clay | Pablo Galdon | 6-2 6-4 |
| 2010-07-12 | Argentina F13 | R32 | clay | Pablo Galdon | 6-2 6-1 |
| 2009-05-18 | Argentina F6 | R32 | clay | Pablo Galdon | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.