01/By surface
each with its own count, at equal weight
Hard
2-0
N. leads 2-0 in 2 meetings on hard
Clay
1-0
N. leads 1-0 in 1 meeting on clay
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, N. first |
|---|---|---|---|---|---|---|
| Apr 30, 2021 | Mutua Madrid OpenWTA1000 | clay | 1st round | Osaka N. | 7-5, 6-2 | 2 v 79 |
| Sep 1, 2020 | US OpenGrand Slam | hard | 1st round | Osaka N. | 6-2, 5-7, 6-2 | 9 v 81 |
| Sep 19, 2016 | Toray Pan Pacific OpenPremier | hard | 1st round | Osaka N. | 6-4, 6-4 | 66 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. Osaka N. and Doi M. each carry the table against every opponent faced.