Alex Theiler defeated Juan Manuel Agasarkissian 6-1 6-1 in the Peru F1 round of 32 on clay. The upset overturned the form book — Juan Manuel Agasarkissian came in leading the head-to-head 1–0. Alex Theiler claimed a first win over Juan Manuel Agasarkissian in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-09-06 | Ecuador F1 | R32 | hard | Juan Manuel Agasarkissian | 6-4 6-4 |