Head to head
0
Hard
1
2
Clay
1
John Isner's wins on the left · Teymuraz Gabashvili's on the right · bar lengths share one scale
All meetings (4)
| 2016 | Roland Garros | Clay | R32 | John Isner | 7-6(7) 4-6 2-6 6-4 6-2 |
| 2015 | Houston | Clay | R16 | Teymuraz Gabashvili | 6-2 7-6(2) |
| 2014 | Madrid Masters | Clay | R64 | John Isner | 7-6(8) 6-4 |
| 2011 | Delray Beach | Hard | R32 | Teymuraz Gabashvili | 6-4 5-7 7-6(13) |
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.