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, S. first |
|---|---|---|---|---|---|---|
| Aug 23, 2018 | Winston-Salem Open at Wake Forest UniversityATP250 | hard | quarterfinal | Johnson S. | 6-1, 6-2 | 34 v 16 |
| Aug 31, 2017 | US OpenGrand Slam, best of 5 | hard | 2nd round | Edmund K. | 7-5, 6-2, 7-6 | 46 v 42 |
| Aug 24, 2017 | Winston-Salem Open at Wake Forest UniversityATP250 | hard | quarterfinal | Edmund K. | 5-7, 6-3, 6-3 | 46 v 45 |
| Jan 20, 2015 | Australian OpenGrand Slam, best of 5 | hard | 1st round | Johnson S. | 6-4, 6-4, 6-3 | 38 v 192 |
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. Johnson S. and Edmund K. each carry the table against every opponent faced.