Chris Letcher defeated Miguel Gallardo Valles 7-6 6-3 in the Mexico F15 qualifying round on hard. The upset overturned the form book — Miguel Gallardo Valles came in leading the head-to-head 3–0. Chris Letcher claimed a first win over Miguel Gallardo Valles in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-11-28 | Mexico F14 | R16 | hard | Miguel Gallardo Valles | 7-6(5) 6-4 |
| 2011-08-22 | Mexico F9 | F | hard | Miguel Gallardo Valles | 6-3 3-6 6-4 |
| 2009-10-26 | Mexico F12 | R32 | hard | Miguel Gallardo Valles | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.