Martin Cuevas defeated Tomas Buchhass 6-2 6-2 in the Argentina F17 round of 32 on clay. The upset overturned the form book — Tomas Buchhass came in leading the head-to-head 2–0. Martin Cuevas claimed a first win over Tomas Buchhass in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-28 | Peru F2 | R32 | clay | Tomas Buchhass | 2-6 6-2 6-3 |
| 2012-05-21 | Peru F1 | R32 | clay | Tomas Buchhass | 0-6 6-4 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.