Yanet Nunez Mojarena defeated Paola Guerrero 0-6 6-3 6-3 in the Pachuca 10K qualifying round on hard. The upset overturned the form book — Paola Guerrero came in leading the head-to-head 1–0. Yanet Nunez Mojarena claimed a first win over Paola Guerrero in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-03-05 | Mexico Circuit 1 40K | R32 | hard | Paola Guerrero | 2-6 6-4 7-6 |