01/By surface
each with its own count, at equal weight
Hard
1-1
Level 1-1 in 2 meetings on hard
Clay
1-0
R. leads 1-0 in 1 meeting 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 |
|---|---|---|---|---|---|---|
| Apr 8, 2019 | U.S. Men's Clay Court ChampionshipsATP250 | clay | 1st round | Harrison R. | 6-3, 6-4 | 107 v 77 |
| Feb 15, 2018 | New York OpenATP250 | hard | 2nd round | Karlovic I. | 6-4, 6-4 | 44 v 89 |
| Feb 27, 2015 | Abierto MexicanoATP500 | hard | quarterfinal | Harrison R. | 4-6, 7-6, 7-6 | 169 v 23 |
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. Harrison R. and Karlovic I. each carry the table against every opponent faced.