Arina Rodionova defeated Elitsa Kostova 6-4 7-6 in the Copenhagen q32 on hard. The upset overturned the form book — Elitsa Kostova came in leading the head-to-head 2–0. Arina Rodionova claimed a first win over Elitsa Kostova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-06-02 | W25 Santa Margarita De Montbui | F | hard | Elitsa Kostova | 7-5 6-3 |
| 2010-11-15 | Wellington 25K | QF | hard | Elitsa Kostova | 7-5 6-3 |
Averages over each player's completed matches in the selected window (200 vs 200). 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