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, D. first |
|---|---|---|---|---|---|---|
| Feb 27, 2018 | Dubai Tennis ChampionshipsATP500 | hard | 1st round | Khachanov K. | 7-6, 7-6 | 81 v 41 |
| Sep 27, 2017 | Chengdu OpenATP250 | hard | 2nd round | Istomin D. | 6-3, 6-2 | 78 v 32 |
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. Istomin D. and Khachanov K. each carry the table against every opponent faced.