Pablo Galdon defeated Facundo Manzanares 6-2 6-3 in the Argentina F20 round of 32 on clay. The upset overturned the form book — Facundo Manzanares came in leading the head-to-head 1–0. Pablo Galdon claimed a first win over Facundo Manzanares in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-10 | Argentina F19 | R32 | clay | Facundo Manzanares | 2-6 7-6(4) 6-0 |