01/By surface
each with its own count, at equal weight
Hard
2-0
K. 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 |
|---|---|---|---|---|---|---|
| Mar 14, 2017 | BNP Paribas OpenMasters 1000 | hard | 3rd round | Nishikori K. | 6-2, 6-2 | 5 v 28 |
| Oct 29, 2016 | Swiss IndoorsATP500 | hard | semifinal | Nishikori K. | 4-6, 7-6, 6-3 | 5 v 37 |
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 Muller G. each carry the table against every opponent faced.