Karolina Kosinska defeated Tarakaa Bertrand 6-2 6-0 in the Mexico City 10K round of 32 on hard. The upset overturned the form book — Tarakaa Bertrand came in leading the head-to-head 1–0. Karolina Kosinska claimed a first win over Tarakaa Bertrand in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-10-20 | Mexico City 10K | SF | hard | Tarakaa Bertrand | 6-3 6-3 |