01/By surface
each with its own count, at equal weight
Hard
0-1
K. leads 1-0 in 1 meeting on hard
Clay
1-1
Level 1-1 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, S. first |
|---|---|---|---|---|---|---|
| May 24, 2016 | French OpenGrand Slam, best of 5 | clay | 1st round | Robert S. | 6-4, 6-2, 1-6, 7-5 | 90 v 20 |
| May 27, 2014 | French OpenGrand Slam, best of 5 | clay | 1st round | Anderson K. | 7-5, 6-3, 6-4 | 74 v 20 |
| Feb 25, 2014 | Abierto MexicanoATP500 | hard | 1st round | Anderson K. | 6-2, 7-6 | 94 v 21 |
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. Robert S. and Anderson K. each carry the table against every opponent faced.