01/By surface
each with its own count, at equal weight
Hard
0-1
K. leads 1-0 in 1 meeting on hard
Clay
0-1
K. leads 1-0 in 1 meeting on clay
Grass
0-1
K. leads 1-0 in 1 meeting on grass
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, J. first |
|---|---|---|---|---|---|---|
| Jun 12, 2026 | Queen's Club ChampionshipsWTA500 | grass | 2nd round | Boulter K. | 6-1, 6-3 | 38 v 73 |
| Apr 15, 2026 | Open de RouenWTA250 | clay | 2nd round | Boulter K. | 7-6, 4-6, 6-1 | 33 v 62 |
| Sep 26, 2022 | Tallinn OpenWTA250 | hard | 1st round | Boulter K. | 6-3, 6-1 | 68 v 145 |
A record, never a share of meetings. Main-draw singles since 2013; a meeting ended by retirement is counted with the sets that were played and marked; a walkover is listed and counted in neither column. Cristian J. and Boulter K. each carry the table against every opponent faced.