Mariano Urli defeated Guillermo Duran 6-2 6-4 in the Argentina F7 round of 16 on clay. The upset overturned the form book — Guillermo Duran came in leading the head-to-head 1–0, but Mariano Urli had been the form player, winning 7 of their last 10 on clay. Mariano Urli claimed a first win over Guillermo Duran in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-07-16 | Argentina F18 | R16 | clay | Guillermo Duran | 4-6 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.