01/By surface
each with its own count, at equal weight
Hard
1-0
K. leads 1-0 in 1 meeting on hard
Clay
1-1
Level 1-1 in 2 meetings on clay
Grass
0-1
S. leads 1-0 in 1 meeting on grass
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| May 11, 2019 | Mutua Madrid OpenPremier | clay | final | Bertens K. | 6-4, 6-4 | 7 v 3 |
| Aug 19, 2018 | Western & Southern Financial Group Women's OpenPremier | hard | final | Bertens K. | 2-6, 7-6, 6-2 | 17 v 1 |
| May 20, 2017 | Internazionali BNL d'ItaliaPremier | clay | semifinal | Halep S. | 7-5, 6-1 | 20 v 4 |
| Jul 2, 2016 | WimbledonGrand Slam | grass | 3rd round | Halep S. | 6-4, 6-3 | 28 v 5 |
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 Halep S. each carry the table against every opponent faced.