Juan Manuel Agasarkissian defeated Alex Theiler 6-4 6-4 in the Ecuador F1 round of 32 on hard. The upset overturned the form book — Alex Theiler came in leading the head-to-head 1–0. Juan Manuel Agasarkissian claimed a first win over Alex Theiler in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-08 | Peru F1 | R32 | clay | Alex Theiler | 6-1 6-1 |