Head to head
0
Hard
1
1
Clay
0
Federico Delbonis's wins on the left · John Isner's on the right · bar lengths share one scale
All meetings (2)
| 2022 | US Open | Hard | R128 | John Isner | 6-3 6-1 7-5 |
| 2014 | Nice | Clay | QF | Federico Delbonis | 6-4 5-7 7-6(6) |
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.