Federico Sansonetti defeated German Gaich 6-7 6-2 7-6 in the Argentina F11 round of 16 on clay. The upset overturned the form book — German Gaich came in leading the head-to-head 1–0. Federico Sansonetti claimed a first win over German Gaich in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-11-03 | Chile F5 | R32 | clay | German Gaich | 7-6(4) 2-6 6-4 |