01/By surface
each with its own count, at equal weight
Hard
0-2
G. leads 2-0 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 |
|---|---|---|---|---|---|---|
| Aug 3, 2017 | Bank of the West ClassicPremier | hard | 2nd round | Muguruza G. | 6-2, 6-0 | 129 v 4 |
| Mar 12, 2017 | BNP Paribas OpenPremier | hard | 3rd round | Muguruza G. | 3-6, 7-5, 6-2 | 175 v 7 |
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. Day K. and Muguruza G. each carry the table against every opponent faced.