Gabriel Alejandro Hidalgo defeated Jorge Montero 2-6 7-5 6-3 in the Colombia F3 round of 32 on clay. The upset overturned the form book — Jorge Montero came in leading the head-to-head 2–1, but Gabriel Alejandro Hidalgo had been the form player, winning 2 of their last 5 on clay. Gabriel Alejandro Hidalgo narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-10-29 | Chile 11 | QF | clay | Jorge Montero | 7-6(4) 6-3 |
| 2012-05-28 | Chile F6 | R32 | clay | Gabriel Alejandro Hidalgo | 6-7(5) 6-3 6-3 |
| 2012-02-20 | Chile F3 | R32 | clay | Jorge Montero | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.