Guido Pella defeated Diego Cristin 6-3 6-1 in the Argentina F22 round of 32 on clay. The upset overturned the form book — Diego Cristin came in leading the head-to-head 2–0, but Guido Pella had been the form player, winning 1 of their last 4 on clay. Guido Pella claimed a first win over Diego Cristin in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-03 | Argentina F15 | R16 | clay | Diego Cristin | 6-4 6-2 |
| 2007-04-30 | Argentina F2 | R16 | clay | Diego Cristin | 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.