01/By surface
each with its own count, at equal weight
Hard
4-1
K. leads 4-1 in 5 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
5 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Feb 24, 2026 | Merida OpenWTA500 | hard | 1st round | Boulter K. | 6-4, 6-4 | 69 v 66 |
| Oct 17, 2024 | Ningbo OpenWTA500 | hard | 2nd round | Haddad Maia B. | 7-6, 7-5 | 35 v 10 |
| Aug 8, 2024 | Canadian OpenWTA1000 | hard | 2nd round | Boulter K.ret. | 1-1 | 33 v 22 |
| Mar 24, 2024 | Miami OpenWTA1000 | hard | 3rd round | Boulter K. | 6-2, 6-3 | 30 v 13 |
| Feb 29, 2024 | San Diego OpenWTA500 | hard | 2nd round | Boulter K. | 3-6, 6-3, 6-4 | 49 v 13 |
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 Haddad Maia B. each carry the table against every opponent faced.