Juan Manuel Romanazzi defeated Francisco Arrechea 6-1 6-2 in the Argentina F7 round of 32 on clay. The upset overturned the form book — Francisco Arrechea came in leading the head-to-head 1–0. Juan Manuel Romanazzi claimed a first win over Francisco Arrechea in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-26 | Argentina F17 | R32 | clay | Francisco Arrechea | 6-7(5) 7-5 3-0 |