Nicolas Pastor defeated Martin Cuevas 7-6 6-3 in the Argentina F7 round of 16 on clay. The upset overturned the form book — Martin Cuevas came in leading the head-to-head 1–0, but Nicolas Pastor had been the form player, winning 7 of their last 10 on clay. Nicolas Pastor claimed a first win over Martin Cuevas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-11 | Argentina F1 | R32 | clay | Martin Cuevas | 6-1 2-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.