Maren Muller defeated Mariana Lopez Palacios 3-6 6-4 6-2 in the Guayaquil 10K qualifying round on clay. The upset overturned the form book — Mariana Lopez Palacios came in leading the head-to-head 1–0. Maren Muller claimed a first win over Mariana Lopez Palacios in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1996-08-19 | Lima 10K | SF | clay | Mariana Lopez Palacios | 6-3 6-7 6-3 |