Head to head
1
Hard
0
2
Clay
0
John Isner's wins on the left · Leonardo Mayer's on the right · bar lengths share one scale
All meetings (3)
| 2017 | Beijing | Hard | R16 | John Isner | 6-0 6-3 |
| 2017 | Houston | Clay | R16 | John Isner | 6-7(5) 7-6(3) 6-3 |
| 2015 | Rome Masters | Clay | R32 | John Isner | 7-6(6) 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.