Head to head
0
Hard
3
1
Clay
0
John Isner's wins on the left · Mardy Fish's on the right · bar lengths share one scale
All meetings (4)
| 2011 | Atlanta | Hard | F | Mardy Fish | 3-6 7-6(6) 6-2 |
| 2011 | Madrid Masters | Clay | R64 | John Isner | 7-6(5) 4-6 7-6(3) |
| 2010 | Atlanta | Hard | F | Mardy Fish | 4-6 6-4 7-6(4) |
| 2009 | San Jose | Hard | R16 | Mardy Fish | 6-2 6-7(4) 7-5 |
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.