K. Boulter leads the head-to-head 3-0 since 2018 against J. Cristian, over 3 matches.
| Surface | K. Boulter | J. Cristian |
|---|---|---|
| Grass | 1 | 0 |
| Clay | 1 | 0 |
| Hard | 1 | 0 |
| Date | Winner | Score | Event |
|---|---|---|---|
| June 12, 2026 | K. Boulter | 2 - 0 | London · 1/8-finals · grass |
| April 15, 2026 | K. Boulter | 2 - 1 | Rouen · 1/8-finals · clay |
| Sept. 26, 2022 | K. Boulter | 2 - 0 | Tallinn · 1/16-finals · hard |