| Date | 26 July 2021 | |
|---|---|---|
| Location | Ariake Tennis Forest Park, Ariake, Koto, Tokyo, Japan | |
| Chair Umpire | Mohamed El-Jennati |  MAR |
| Seed | Competitor | NOC | Sets Won | Set 1 | Set 2 | |
|---|---|---|---|---|---|---|
| – | Marin Čilić / Ivan Dodig |  CRO | 2 | 6 | 7 | |
| – | Rajeev Ram / Frances Tiafoe |  USA | 0 | 3 | 5 |
Marin Čilić / Ivan Dodig| Pos | Seed | Competitor | |||
|---|---|---|---|---|---|
| – | Marin Čilić | ||||
| – | Ivan Dodig | ||||
| Team Totals | |||||
Rajeev Ram / Frances Tiafoe| Pos | Seed | Competitor | |||
|---|---|---|---|---|---|
| – | Rajeev Ram | ||||
| – | Frances Tiafoe | ||||
| Team Totals | |||||
