Head to head
3
Hard
0
1
Clay
0
John Isner's wins on the left · John Millman's on the right · bar lengths share one scale
All meetings (4)
| 2020 | Cincinnati Masters | Hard | R32 | John Isner | 4-6 7-6(3) 7-6(5) |
| 2019 | Acapulco | Hard | QF | John Isner | 7-6(2) 6-7(4) 7-6(4) |
| 2016 | Roland Garros | Clay | R128 | John Isner | 6-7(4) 7-6(12) 7-6(7) 7-5 |
| 2015 | Beijing | Hard | R16 | John Isner | 4-6 7-6(5) 6-4 |
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.