Head to head
1
Hard
1
0
Clay
1
0
Grass
1
Reilly Opelka's wins on the left · Dominik Koepfer's on the right · bar lengths share one scale
All meetings (4)
| 2022 | Australian Open | Hard | R64 | Reilly Opelka | 6-4 6-3 7-6(4) |
| 2021 | Wimbledon | Grass | R128 | Dominik Koepfer | 6-4 7-6(3) 6-2 |
| 2021 | Madrid Masters | Clay | R64 | Dominik Koepfer | 6-4 6-4 |
| 2019 | US Open | Hard | R64 | Dominik Koepfer | 6-4 6-4 7-6(2) |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.