By surface
| Surface | Denis Istomin | Ryan Sweeting |
|---|---|---|
| Hard | 3 | 0 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2013-02-11 | ATP | San Jose | Round of 32 | Hard | Denis Istomin | 6-3 | 6-4 | |||
| 2012-01-09 | ATP | Sydney | Round of 16 | Hard | Denis Istomin | 6-2 | 6-1 | |||
| 2011-08-29 | ATP | US Open | Round of 128 | Hard | Denis Istomin | 3-6 | 7-5 | 6-4 | 7-64 |