Head to head
4
Hard
1
1
Clay
0
Reilly Opelka's wins on the left · John Isner's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2022 | Houston | Clay | F | Reilly Opelka | 6-3 7-6(7) |
| 2022 | Dallas | Hard | SF | Reilly Opelka | 7-6(7) 7-6(22) |
| 2019 | Atlanta | Hard | R16 | Reilly Opelka | 7-6(2) 6-7(5) 7-6(5) |
| 2019 | New York Open | Hard | SF | Reilly Opelka | 6-7(8) 7-6(14) 7-6(4) |
| 2019 | Australian Open | Hard | R128 | Reilly Opelka | 7-6(4) 7-6(6) 6-7(4) 7-6(5) |
| 2016 | Atlanta | Hard | SF | John Isner | 6-7(5) 6-4 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.