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