Cristian Paiz defeated Lester Cook 4-6 6-1 6-1 in the Mexico F7 round of 32 on clay. The upset overturned the form book — Lester Cook came in leading the head-to-head 1–0. Cristian Paiz claimed a first win over Lester Cook in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-05-08 | Mexico F6 | QF | hard | Lester Cook | 7-6(0) 6-0 |