01/By surface
each with its own count, at equal weight
Hard
3-0
K. leads 3-0 in 3 meetings on hard
Clay
2-1
K. leads 2-1 in 3 meetings on clay
Grass
0-2
K. leads 2-0 in 2 meetings on grass
02/Every meeting
8 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| May 21, 2025 | Geneva OpenATP250 | clay | 2nd round | Khachanov K.ret. | 7-5, 2-5 | 62 v 24 |
| Jan 1, 2025 | Hong Kong Tennis OpenATP250 | hard | 2nd round | Nishikori K. | 4-6, 6-3, 7-5 | 106 v 19 |
| Jun 2, 2021 | French OpenGrand Slam, best of 5 | clay | 2nd round | Nishikori K. | 4-6, 6-2, 2-6, 6-4, 6-4 | 49 v 25 |
| May 4, 2021 | Mutua Madrid OpenMasters 1000 | clay | 1st round | Nishikori K. | 6-7, 6-2, 6-2 | 43 v 23 |
| Oct 25, 2018 | Erste Bank OpenATP500 | hard | 2nd round | Nishikori K. | 6-2, 6-2 | 11 v 19 |
| Jun 20, 2018 | Gerry Weber OpenATP500 | grass | 2nd round | Khachanov K. | 6-2, 6-2 | 27 v 36 |
| Jun 22, 2017 | Gerry Weber OpenATP500 | grass | 2nd round | Khachanov K.ret. | 3-2 | 9 v 38 |
| Sep 1, 2016 | US OpenGrand Slam, best of 5 | hard | 2nd round | Nishikori K. | 6-4, 4-6, 6-4, 6-3 | 7 v 95 |
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. Nishikori K. and Khachanov K. each carry the table against every opponent faced.