01/By surface
each with its own count, at equal weight
Hard
4-4
Level 4-4 in 8 meetings on hard
Clay
0-1
K. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
9 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Nov 13, 2018 | Masters CupMasters Cup | hard | round robin | Anderson K. | 6-0, 6-1 | 6 v 9 |
| Nov 1, 2018 | BNP Paribas MastersMasters 1000 | hard | 3rd round | Nishikori K. | 6-4, 6-4 | 6 v 11 |
| Oct 28, 2018 | Erste Bank OpenATP500 | hard | final | Anderson K. | 6-3, 7-6 | 8 v 11 |
| Feb 18, 2018 | New York OpenATP250 | hard | semifinal | Anderson K. | 6-1, 3-6, 7-6 | 11 v 27 |
| May 25, 2017 | Geneva OpenATP250 | clay | quarterfinal | Nishikori K. | 2-6, 6-4, 7-6 | 62 v 9 |
| Mar 24, 2017 | Sony Ericsson OpenMasters 1000 | hard | 2nd round | Nishikori K. | 6-4, 6-3 | 74 v 4 |
| Oct 15, 2015 | Shanghai MastersMasters 1000 | hard | 3rd round | Anderson K. | 7-6, 7-6 | 10 v 6 |
| Feb 28, 2015 | Abierto MexicanoATP500 | hard | semifinal | Nishikori K. | 6-2, 3-6, 6-3 | 15 v 5 |
| Feb 15, 2015 | Memphis OpenATP250 | hard | final | Nishikori K. | 6-4, 6-4 | 15 v 5 |
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. Anderson K. and Nishikori K. each carry the table against every opponent faced.