01/By surface
each with its own count, at equal weight
Hard
2-0
A. leads 2-0 in 2 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
1-0
A. leads 1-0 in 1 meeting on grass
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, A. first |
|---|---|---|---|---|---|---|
| Nov 7, 2021 | Generali Ladies Linz OpenWTA250 | hard | 1st round | Riske A. | 6-3, 6-1 | 73 v 273 |
| Jun 7, 2016 | Aegon OpenInternational | grass | 1st round | Riske A. | 6-2, 6-1 | 89 v 66 |
| Aug 29, 2013 | US OpenGrand Slam | hard | 2nd round | Riske A. | 6-4, 6-2 | 81 v 34 |
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. Riske A. and Barthel M. each carry the table against every opponent faced.