01/By surface
each with its own count, at equal weight
Hard
3-0
S. leads 3-0 in 3 meetings on hard
Clay
1-0
S. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, S. first |
|---|---|---|---|---|---|---|
| Sep 15, 2025 | Korea OpenWTA500 | hard | 1st round | Kenin S. | 2-6, 6-3, 7-5 | 30 v 43 |
| May 26, 2024 | French OpenGrand Slam | clay | 1st round | Kenin S. | 4-6, 6-2, 6-2 | 56 v 71 |
| Sep 17, 2019 | Guangzhou OpenInternational | hard | 1st round | Kenin S. | 6-4, 6-2 | 20 v 79 |
| Aug 29, 2019 | US OpenGrand Slam | hard | 2nd round | Kenin S. | 7-6, 6-0 | 20 v 90 |
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. Kenin S. and Siegemund L. each carry the table against every opponent faced.