01/By surface
each with its own count, at equal weight
Hard
0-1
C. leads 1-0 in 1 meeting on hard
Clay
0-2
C. leads 2-0 in 2 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, R. first |
|---|---|---|---|---|---|---|
| May 20, 2022 | Geneva OpenATP250 | clay | semifinal | Ruud C. | 7-6, 7-5 | 18 v 8 |
| Aug 18, 2021 | Western & Southern Financial Group MastersMasters 1000 | hard | 2nd round | Ruud C. | 6-7, 6-0, 7-6 | 23 v 11 |
| Apr 11, 2019 | U.S. Men's Clay Court ChampionshipsATP250 | clay | 2nd round | Ruud C. | 4-6, 6-4, 6-4 | 56 v 95 |
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. Opelka R. and Ruud C. each carry the table against every opponent faced.