Sheila Guerberg defeated Manuela Esposito 6-2 6-0 in the Monterrey 10K round of 32 on hard. The upset overturned the form book — Manuela Esposito came in leading the head-to-head 1–0, but Sheila Guerberg had been the form player, winning 2 of their last 4 on hard. Sheila Guerberg claimed a first win over Manuela Esposito in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-16 | Mazatlan 10K | R32 | hard | Manuela Esposito | 6-3 6-2 |