Margot Mercier defeated Daiana Hail 6-2 6-3 in the Villa del Dique $10K q16 on clay. The upset overturned the form book — Daiana Hail came in leading the head-to-head 1–0. Margot Mercier claimed a first win over Daiana Hail in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-09-28 | Santa Fe $10K | Q16 | clay | Daiana Hail | 7-5 6-1 |