01/By surface
each with its own count, at equal weight
Hard
1-1
Level 1-1 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 |
|---|---|---|---|---|---|---|
| Feb 24, 2020 | Dubai Tennis ChampionshipsATP500 | hard | 1st round | Khachanov K. | 7-6, 6-1 | 17 v 89 |
| Oct 14, 2014 | Kremlin CupATP250 | hard | 1st round | Kukushkin M. | 6-7, 6-0, 6-2 | 282 v 74 |
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. Khachanov K. and Kukushkin M. each carry the table against every opponent faced.