Luis Diaz Barriga defeated Conor Pollock 3-6 6-3 6-3 in the USA F19 round of 16 on hard. The upset overturned the form book — Conor Pollock came in leading the head-to-head 1–0. Luis Diaz Barriga claimed a first win over Conor Pollock in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-09-28 | Mexico F10 | R16 | hard | Conor Pollock | 6-4 2-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.