01/By surface
each with its own count, at equal weight
Hard
2-0
K. leads 2-0 in 2 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
1-0
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, K. first |
|---|---|---|---|---|---|---|
| Jan 14, 2025 | Australian OpenGrand Slam | hard | 1st round | Boulter K. | 6-4, 3-6, 7-5 | 25 v 98 |
| Jun 12, 2024 | Nottingham OpenWTA250 | grass | 2nd round | Boulter K. | 6-4, 6-3 | 30 v 157 |
| Aug 8, 2023 | Canadian OpenWTA1000 | hard | 1st round | Boulter K. | 6-3, 6-1 | 72 v 103 |
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. Boulter K. and Marino R. each carry the table against every opponent faced.