Head to head
2
Hard
2
1
Grass
0
Radek Stepanek's wins on the left · John Isner's on the right · bar lengths share one scale
All meetings (5)
| 2015 | Atlanta | Hard | R16 | John Isner | 7-6(3) 7-6(7) |
| 2012 | Shanghai Masters | Hard | R16 | Radek Stepanek | 6-4 6-7(5) 6-3 |
| 2011 | Cincinnati Masters | Hard | R64 | Radek Stepanek | 7-5 5-7 7-6(4) |
| 2011 | Australian Open | Hard | R64 | John Isner | 4-6 6-4 6-2 6-1 |
| 2008 | Nottingham | Grass | R32 | Radek Stepanek | 6-3 6-2 |
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.