By surface
| Surface | Dominic Thiem | Denis Istomin |
|---|---|---|
| Hard | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2015-09-21 | ATP | St. Petersburg | Quarterfinal | Hard | Dominic Thiem | 6-2 | 7-5 | |||
| 2015-08-31 | ATP | US Open | Round of 64 | Hard | Dominic Thiem | 6-4 | 6-4 | 1-0 |