Elitsa Kostova defeated Elizabeth Thomas 6-4 6-2 in the Las Palmas De Gran Canaria 10K round of 32 on hard. The upset overturned the form book — Elizabeth Thomas came in leading the head-to-head 1–0. Elitsa Kostova claimed a first win over Elizabeth Thomas in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-24 | Clermond-Ferrand 10K | R16 | hard | Elizabeth Thomas | 7-5 3-6 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.