P. Stearns leads the head-to-head 2-1 since 2018 against K. Birrell, over 3 matches.
| Surface | K. Birrell | P. Stearns |
|---|---|---|
| Grass | 1 | 0 |
| Hard | 0 | 1 |
| Clay | 0 | 1 |
| Date | Winner | Score | Event |
|---|---|---|---|
| June 21, 2026 | K. Birrell | 2 - 0 | Eastbourne · Final · grass |
| Feb. 28, 2026 | P. Stearns | 2 - 1 | WTA Austin · Semi-finals · hard |
| April 22, 2025 | P. Stearns | 2 - 1 | Madrid · 1/64-finals · clay |