By surface
| Surface | John Isner | Bradley Klahn |
|---|---|---|
| Hard | 3 | 0 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018-10-15 | ATP | Stockholm | Round of 16 | Hard | John Isner | 7-62 | 6-75 | 7-65 | ||
| 2018-08-27 | ATP | US Open | Round of 128 | Hard | John Isner | 7-63 | 6-3 | 6-4 | ||
| 2014-08-17 | ATP | Winston-Salem | Round of 32 | Hard | John Isner | 7-65 | 6-2 |