Maria Mateas defeated Katerina Stewart 4-6 6-3 7-5 in the W25 Boca Raton round of 32 on clay. The result followed the form book — Maria Mateas came in leading the head-to-head 2–1. Maria Mateas extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-06-23 | W60 Charleston | R32 | clay | Maria Mateas | 6-4 0-6 7-6(11) |
| 2019-09-30 | W60 Charleston | Q32 | clay | Maria Mateas | 6-1 3-6 10-3 |
| 2019-06-05 | W25 Bethany Beach | R32 | clay | Katerina Stewart | 1-6 6-4 3-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.