01/By surface
each with its own count, at equal weight
Hard
1-2
S. leads 2-1 in 3 meetings on hard
Clay
0-1
S. leads 1-0 in 1 meeting on clay
Grass
0-1
S. leads 1-0 in 1 meeting on grass
02/Every meeting
5 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Sep 30, 2018 | China OpenPremier | hard | 1st round | Bertens K. | 6-2, 6-0 | 11 v 61 |
| Jul 4, 2017 | WimbledonGrand Slam | grass | 1st round | Cirstea S. | 7-6, 7-5 | 24 v 63 |
| Oct 10, 2016 | Generali Ladies LinzInternational | hard | 1st round | Cirstea S. | 6-4, 6-2 | 23 v 83 |
| Jul 29, 2014 | Citi OpenInternational | hard | 1st round | Cirstea S. | 6-4, 4-6, 6-3 | 77 v 35 |
| May 26, 2013 | French OpenGrand Slam | clay | 1st round | Cirstea S. | 5-7, 7-5, 6-2 | 55 v 30 |
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. Bertens K. and Cirstea S. each carry the table against every opponent faced.