Adriana Barna defeated Hannah Collin 6-3 5-7 7-6 in the Puebla 25K round of 32 on hard. The upset overturned the form book — Hannah Collin came in leading the head-to-head 1–0. Adriana Barna claimed a first win over Hannah Collin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-10-30 | Hull 25K | R32 | hard | Hannah Collin | 1-4 4-2 4-2 5-4(5) |