01/By surface
each with its own count, at equal weight
Hard
1-1
Level 1-1 in 2 meetings on hard
Clay
2-1
M. leads 2-1 in 3 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
5 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, M. first |
|---|---|---|---|---|---|---|
| Apr 4, 2019 | Family Circle CupPremier | clay | 3rd round | Sakkari M. | 7-6, 6-3 | 50 v 6 |
| Sep 22, 2018 | Korea OpenInternational | hard | semifinal | Bertens K. | 6-4, 6-2 | 32 v 12 |
| May 15, 2018 | Internazionali BNL d'ItaliaPremier | clay | 1st round | Sakkari M. | 6-2, 4-6, 6-3 | 42 v 15 |
| May 5, 2018 | Mutua Madrid OpenPremier | clay | 1st round | Bertens K. | 6-4, 6-4 | 42 v 20 |
| Aug 28, 2017 | US OpenGrand Slam | hard | 1st round | Sakkari M. | 6-3, 6-4 | 95 v 27 |
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. Sakkari M. and Bertens K. each carry the table against every opponent faced.