01/By surface
each with its own count, at equal weight
Hard
Never on hard
no meeting on this surface
Clay
0-1
D. leads 1-0 in 1 meeting on clay
Grass
1-0
O. leads 1-0 in 1 meeting on grass
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, O. first |
|---|---|---|---|---|---|---|
| Apr 28, 2023 | Mutua Madrid OpenMasters 1000 | clay | 2nd round | Altmaier D. | 6-4, 7-5 | 98 v 92 |
| Jun 6, 2022 | Mercedes CupATP250 | grass | 1st round | Otte O. | 7-6, 7-6 | 61 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. Otte O. and Altmaier D. each carry the table against every opponent faced.