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
Never on grass
no meeting on this surface
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | Western & Southern Financial Group Women's OpenWTA1000 | hard | 1st round | Boulter K. | 7-5, 0-6, 6-4 | 71 v 89 |
| Feb 6, 2026 | Ostrava OpenWTA250 | hard | semifinal | Boulter K. | 6-1, 6-3 | 120 v 96 |
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 Volynets K. each carry the table against every opponent faced.