Claire Feuerstein defeated Marta Sirotkina 4-6 6-3 7-6 in the Bath 25K qualifying round on hard. The upset overturned the form book — Marta Sirotkina came in leading the head-to-head 2–0. Claire Feuerstein claimed a first win over Marta Sirotkina in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-01-11 | Australian Open | Q64 | hard | Marta Sirotkina | 6-2 7-6(5) |
| 2012-03-26 | Phuket 25K | F | hard | Marta Sirotkina | 7-5 7-6(6) |
Averages over each player's completed matches in the selected window (31 vs 11). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About