Leandro Migani defeated Guillermo Duran 6-1 6-0 in the Argentina F8 round of 32 on clay. The upset overturned the form book — Guillermo Duran came in leading the head-to-head 4–0. Leandro Migani claimed a first win over Guillermo Duran in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-12-03 | Argentina F28 | SF | clay | Guillermo Duran | 7-6(5) 6-2 |
| 2012-11-19 | Argentina F26 | QF | clay | Guillermo Duran | 6-3 6-3 |
| 2011-09-26 | Argentina F17 | QF | clay | Guillermo Duran | 6-4 4-6 7-5 |
| 2009-09-07 | Argentina F14 | QF | clay | Guillermo Duran | 3-6 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.