01/By surface
each with its own count, at equal weight
Hard
Never on hard
no meeting on this surface
Clay
0-3
L. leads 3-0 in 3 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Apr 29, 2021 | Mutua Madrid OpenWTA1000 | clay | 1st round | Siegemund L. | 6-4, 6-2 | 137 v 59 |
| Jul 26, 2018 | Moscow River CupInternational | clay | 2nd round | Siegemund L. | 6-0, 6-3 | 82 v 217 |
| Jul 19, 2016 | Ericsson OpenInternational | clay | 1st round | Siegemund L. | 6-1, 6-2 | 96 v 40 |
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. Kozlova K. and Siegemund L. each carry the table against every opponent faced.