Head to head
2
Hard
0
1
Clay
0
John Isner's wins on the left · Gilles Simon's on the right · bar lengths share one scale
All meetings (3)
| 2012 | Davis Cup WG QF: FRA vs USA | Clay | RR | John Isner | 6-3 6-2 7-5 |
| 2012 | Indian Wells Masters | Hard | QF | John Isner | 6-3 1-6 7-5 |
| 2011 | US Open | Hard | R16 | John Isner | 7-6(2) 3-6 7-6(2) 7-6(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.