Arina Rodionova defeated Maria Joao Koehler 7-6 6-4 in the Vila Real de Santo Antonio 10K qualifying round on clay. The upset overturned the form book — Maria Joao Koehler came in leading the head-to-head 1–0. Arina Rodionova claimed a first win over Maria Joao Koehler in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-01-12 | Australian Open | Q32 | hard | Maria Joao Koehler | 6-2 4-6 6-1 |
Averages over each player's completed matches in the selected window (200 vs 25). 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