Constance Sibille defeated Diana Marcinkevica 6-4 4-6 6-0 in the Andrezieux Boutheon 25K round of 32 on hard. The upset overturned the form book — Diana Marcinkevica came in leading the head-to-head 2–0, but Constance Sibille had been the form player, winning 2 of their last 4 on hard. Constance Sibille claimed a first win over Diana Marcinkevica in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-26 | Fleurus near Charleroi 25K | R16 | clay | Diana Marcinkevica | 6-2 6-4 |
| 2012-03-05 | Dijon 10K | QF | hard | Diana Marcinkevica | 7-5 6-1 |
Averages over each player's completed matches in the selected window (46 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