| | Top level | Event type
Doubles, Men – Match #1
| 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 | Set 3 | |
|---|---|---|---|---|---|---|---|
| – | Nikola Mektić / Mate Pavić |  CRO | 2 | 7 | 6 | 10 | |
| – | Lorenzo Musetti / Lorenzo Sonego |  ITA | 1 | 5 | 7 | 7 |
Nikola Mektić / Mate Pavić
| Pos | Seed | Competitor | Tie-break 2 | |||
|---|---|---|---|---|---|---|
| – | Nikola Mektić | – | ||||
| – | Mate Pavić | – | ||||
| Team Totals | 5 | |||||
Lorenzo Musetti / Lorenzo Sonego
| Pos | Seed | Competitor | Tie-break 2 | |||
|---|---|---|---|---|---|---|
| – | Lorenzo Musetti | – | ||||
| – | Lorenzo Sonego | – | ||||
| Team Totals | 7 | |||||