Maria Mateas defeated Elvina Kalieva 7-5 4-6 10-3 in the W25 Naples q16 on clay. The upset overturned the form book — Elvina Kalieva came in ranked #138. Maria Mateas extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-10-17 | W80 Macon | R32 | hard | Maria Mateas | 6-3 7-5 |
| 2020-01-14 | W25 Daytona Beach | Q32 | clay | Maria Mateas | 6-2 6-2 |
Averages over each player's completed matches in the selected window (54 vs 146). 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