Rolando Vargas defeated Michael Johnson 6-4 6-2 in the Mexico F4 round of 32 on clay. The upset overturned the form book — Michael Johnson came in leading the head-to-head 1–0. Rolando Vargas claimed a first win over Michael Johnson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-02-13 | Mexico F2 | R16 | hard | Michael Johnson | 4-6 6-3 6-4 |