01/By surface
each with its own count, at equal weight
Hard
1-0
S. leads 1-0 in 1 meeting on hard
Clay
1-0
S. leads 1-0 in 1 meeting on clay
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, S. first |
|---|---|---|---|---|---|---|
| May 23, 2017 | Geneva OpenATP250 | clay | 1st round | Johnson S. | 6-3, 6-3 | 26 v 113 |
| Jan 8, 2017 | ASB ClassicATP250 | hard | 1st round | Johnson S. | 6-4, 6-3 | 33 v 53 |
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 Robert S. each carry the table against every opponent faced.