Julia Stamatova defeated Agni Stefanou 6-2 4-6 6-0 in the Heraklion 10K round of 32 on hard. The upset overturned the form book — Agni Stefanou came in leading the head-to-head 2–1. Julia Stamatova narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-23 | Heraklion $10K | R32 | hard | Julia Stamatova | 7-5 6-2 |
| 2013-07-22 | Istanbul 10K | R16 | hard | Agni Stefanou | 7-5 6-2 |
| 2012-07-16 | Istanbul 10K | R32 | hard | Agni Stefanou | 6-1 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.