Elizabeth Ferris defeated Katerina Kramperova 6-3 6-1 in the Puebla 10K qualifying round on hard. The upset overturned the form book — Katerina Kramperova came in leading the head-to-head 1–0. Elizabeth Ferris claimed a first win over Katerina Kramperova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-24 | Montego Bay 10K | SF | hard | Katerina Kramperova | 6-1 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.