Luis Diaz Barriga defeated Miguel Gallardo Valles 0-6 7-5 6-3 in the Mexico F10 qualifying round on hard. The upset overturned the form book — Miguel Gallardo Valles came in leading the head-to-head 3–1. Luis Diaz Barriga narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-03 | Mexico F13 | R32 | hard | Miguel Gallardo Valles | 6-3 6-4 |
| 2011-09-26 | Mexico F12 | SF | hard | Luis Diaz Barriga | 6-0 6-3 |
| 2009-10-05 | Mexico F11 | R16 | hard | Miguel Gallardo Valles | 6-3 6-4 |
| 2009-09-21 | Mexico F9 | QF | hard | Miguel Gallardo Valles | 5-7 6-0 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.