By surface
| Surface | Denis Istomin | Sumit Nagal |
|---|---|---|
| Hard | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-07-24 | ATP | Tokyo Olympics | Round of 64 | Hard | Sumit Nagal | 4-6 | 7-66 | 4-6 |
| Surface | Denis Istomin | Sumit Nagal |
|---|---|---|
| Hard | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-07-24 | ATP | Tokyo Olympics | Round of 64 | Hard | Sumit Nagal | 4-6 | 7-66 | 4-6 |