By surface
| Surface | Grigor Dimitrov | Sam Riffice |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-08-30 | ATP | US Open | Round of 128 | Hard | Grigor Dimitrov | 6-1 | 7-63 | 6-3 |
| Surface | Grigor Dimitrov | Sam Riffice |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-08-30 | ATP | US Open | Round of 128 | Hard | Grigor Dimitrov | 6-1 | 7-63 | 6-3 |