01/By surface
each with its own count, at equal weight
Hard
3-0
V. leads 3-0 in 3 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, V. first |
|---|---|---|---|---|---|---|
| Mar 13, 2019 | BNP Paribas OpenPremier | hard | 4th round | Williams V. | 6-4, 6-4 | 36 v 97 |
| Jan 22, 2017 | Australian OpenGrand Slam | hard | 4th round | Williams V. | 6-3, 7-5 | 17 v 181 |
| Sep 22, 2013 | Toray Pan Pacific OpenPremier | hard | 1st round | Williams V. | 6-3, 6-1 | 63 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. Williams V. and Barthel M. each carry the table against every opponent faced.