Gustavo Vellbach defeated Juan Ignacio Ameal 6-2 6-0 in the Chile F9 round of 32 on clay. The upset overturned the form book — Juan Ignacio Ameal came in leading the head-to-head 2–0. Gustavo Vellbach claimed a first win over Juan Ignacio Ameal in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-24 | Argentina F10 | R32 | clay | Juan Ignacio Ameal | 6-4 6-2 |
| 2014-07-28 | Argentina F12 | R32 | clay | Juan Ignacio Ameal | 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.