Alejandro Kon defeated Juan Manuel Valverde 6-3 6-7 7-6 in the Argentina F12 round of 16 on clay. The upset overturned the form book — Juan Manuel Valverde came in leading the head-to-head 2–0. Alejandro Kon claimed a first win over Juan Manuel Valverde in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-11-01 | Argentina F22 | R32 | clay | Juan Manuel Valverde | 7-5 6-2 |
| 2009-05-04 | Argentina F4 | QF | clay | Juan Manuel Valverde | 6-3 6-1 |