01/By surface
each with its own count, at equal weight
Hard
1-1
Level 1-1 in 2 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Sep 2, 2019 | US OpenGrand Slam | hard | 4th round | Mertens E. | 6-1, 6-1 | 141 v 26 |
| Aug 1, 2019 | Mubadala Silicon Valley ClassicPremier | hard | 2nd round | Ahn K. | 6-3, 6-3 | 178 v 20 |
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. Ahn K. and Mertens E. each carry the table against every opponent faced.