01/By surface
each with its own count, at equal weight
Hard
1-1
Level 1-1 in 2 meetings on hard
Clay
1-0
K. leads 1-0 in 1 meeting on clay
Grass
1-0
K. 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 |
|---|---|---|---|---|---|---|
| Oct 2, 2018 | China OpenPremier | hard | 2nd round | Bertens K. | 6-1, 6-1 | 57 v 11 |
| Jun 15, 2018 | Ricoh OpenInternational | grass | 2nd round | Flipkens K. | 6-4, 6-7, 6-1 | 60 v 21 |
| May 25, 2018 | Nürnberger VersicherungscupInternational | clay | quarterfinal | Flipkens K. | 5-7, 6-3, 7-6 | 69 v 18 |
| Aug 7, 2013 | Rogers CupPremier | hard | 2nd round | Flipkens K. | 7-5, 3-6, 6-2 | 13 v 67 |
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. Flipkens K. and Bertens K. each carry the table against every opponent faced.