01/By surface
each with its own count, at equal weight
Hard
2-2
Level 2-2 in 4 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, K. first |
|---|---|---|---|---|---|---|
| Mar 2, 2021 | ABN AMRO World Tennis TournamentATP500 | hard | 1st round | Khachanov K. | 6-4, 7-5 | 21 v 20 |
| Aug 8, 2019 | Rogers MastersMasters 1000 | hard | 2nd round | Khachanov K. | 6-4, 6-7, 6-2 | 8 v 22 |
| Jan 1, 2019 | Qatar Exxon Mobil OpenATP250 | hard | 1st round | Wawrinka S. | 7-6, 6-4 | 11 v 66 |
| Sep 19, 2018 | St. Petersburg OpenATP250 | hard | 2nd round | Wawrinka S. | 7-6, 7-6 | 24 v 88 |
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 Wawrinka S. each carry the table against every opponent faced.