| Event: | Men's 400 metre freestyle S6 |
| Games: | 2020 Summer |
| Venue: | Tokyo Aquatics Centre |
| Dates: | 2 September 2021 |
| Competitors: | 13 |
| Nations: | 11 |
| Gold: | Talisson Glock |
| Goldnpc: | BRA |
| Silver: | Antonio Fantin |
| Silvernpc: | ITA |
| Bronze: | Viacheslav Lenskii |
| Bronzenpc: | RPC |
The men's 400 metre freestyle S6 event at the 2020 Paralympic Games took place on 2 September 2021, at the Tokyo Aquatics Centre.
The swimmers with the top eight times, regardless of heat, advanced to the final.[1] [2]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 5:06.28 | ||||
| 2 | 1 | 3 | 5:11.07 | ||||
| 3 | 2 | 4 | 5:12.08 | ||||
| 4 | 2 | 5 | 5:14.10 | ||||
| 5 | 1 | 5 | 5:15.38 | ||||
| 6 | 2 | 3 | 5:26.10 | ||||
| 7 | 1 | 6 | 5:26.57 | ||||
| 8 | 2 | 6 | 5:26.88 | ||||
| 9 | 2 | 7 | 5:29.95 | ||||
| 10 | 2 | 2 | 5:36.25 | ||||
| 11 | 1 | 2 | 5:40.08 | ||||
| 12 | 2 | 1 | 5:40.48 | ||||
| 13 | 1 | 7 | 5:52.28 |
| Rank | Lane | Name | Nationality | Time | Notes | +400m freestyle final[3] |
|---|---|---|---|---|---|---|
| 4 | Talisson Glock | 4.54.42 | AM | |||
| 3 | Antonio Fantin | 4.55.70 | ||||
| 5 | Viacheslav Lenskii | 5.04.80 | ||||
| 4 | 2 | Andrei Granichka | 5.05.30 | |||
| 5 | 6 | 5:15.23 | ||||
| 6 | 8 | 5:24.92 | ||||
| 7 | 7 | 5:26.10 | ||||
| 8 | 1 | 5:30.42 |