01/By surface
each with its own count, at equal weight
Hard
Never on hard
no meeting on this surface
Clay
1-0
R. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
1 row, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, R. first |
|---|---|---|---|---|---|---|
| Jun 5, 2021 | French OpenGrand Slam, best of 5 | clay | 3rd round | Federer R. | 7-6, 6-7, 7-6, 7-5 | 8 v 59 |
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. Federer R. and Koepfer D. each carry the table against every opponent faced.