Guido Pella defeated Alejandro Kon 6-3 6-3 in the Argentina F25 qualifying round on clay. The upset overturned the form book — Alejandro Kon came in leading the head-to-head 2–1. Guido Pella narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-25 | Argentina F3 | R16 | clay | Alejandro Kon | 6-2 6-3 |
| 2007-08-13 | Peru F3 | R32 | clay | Guido Pella | 6-4 6-1 |
| 2007-07-30 | Peru F1 | SF | clay | Alejandro Kon | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.