Martin Cuevas defeated Guillermo Duran 3-6 7-6 6-1 in the Argentina F9 round of 16 on clay. The upset overturned the form book — Guillermo Duran came in leading the head-to-head 2–0. Martin Cuevas claimed a first win over Guillermo Duran in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-12-05 | Brazil F42 | SF | clay | Guillermo Duran | 6-7(6) 6-1 7-6(5) |
| 2010-06-28 | Argentina F11 | R32 | clay | Guillermo Duran | 3-6 6-1 6-2 |
Averages over each player's completed matches in the selected window (200 vs 33). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About