01/By surface
each with its own count, at equal weight
Hard
0-1
D. leads 1-0 in 1 meeting on hard
Clay
1-0
J.L. 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, J.L. first |
|---|---|---|---|---|---|---|
| Aug 16, 2021 | Western & Southern Financial Group MastersMasters 1000 | hard | 1st round | Koepfer D. | 7-6, 5-7, 6-3 | 47 v 59 |
| Apr 29, 2021 | BMW OpenATP250 | clay | 2nd round | Struff J.L. | 7-6, 6-7, 6-2 | 44 v 54 |
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. Struff J.L. and Koepfer D. each carry the table against every opponent faced.