Sheila Guerberg defeated Gabriela Mejia Tenorio 7-6 6-1 in the Leon 10K round of 32 on hard. The upset overturned the form book — Gabriela Mejia Tenorio came in leading the head-to-head 1–0. Sheila Guerberg claimed a first win over Gabriela Mejia Tenorio in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-06-05 | Jalapa 10K | R32 | hard | Gabriela Mejia Tenorio | 7-5 6-2 |