| Event: | Boys' 400 metre freestyle |
| Competition: | 2014 Summer Youth Olympics |
| Venue: | Nanjing Olympic Sports Centre |
| Dates: | 17 August |
| Competitors: | 31 |
| Nations: | 28 |
| Win Value: | 3:49.76 |
| Gold: | Mykhailo Romanchuk |
| Goldnoc: | UKR |
| Silver: | Marcelo Acosta |
| Silvernoc: | ESA |
| Bronze: | Henrik Christiansen |
| Bronzenoc: | NOR |
| Prev: | 2010 |
| Next: | 2018 |
The boys' 400 metre freestyle event in swimming at the 2014 Summer Youth Olympics took place on 17 August at the Nanjing Olympic Sports Centre in Nanjing, China.[1] [2]
The heats were held at 10:00.
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 4 | 3 | 3:52.02 | Q | |||
| 2 | 4 | 4 | 3:52.80 | Q | |||
| 3 | 3 | 8 | 3:53.14 | Q | |||
| 4 | 2 | 2 | 3:53.31 | Q | |||
| 5 | 4 | 7 | 3:53.45 | Q | |||
| 6 | 4 | 5 | 3:53.58 | Q | |||
| 7 | 3 | 3 | 3:53.79 | Q | |||
| 8 | 3 | 4 | 3:55.32 | Q | |||
| 9 | 3 | 5 | 3:55.62 | ||||
| 10 | 3 | 6 | 3:55.66 | ||||
| 11 | 4 | 8 | 3:55.72 | ||||
| 12 | 2 | 1 | 3:56.31 | ||||
| 13 | 4 | 2 | 3:56.35 | ||||
| 14 | 4 | 6 | 3:56.84 | ||||
| 15 | 4 | 1 | 3:56.88 | ||||
| 16 | 2 | 7 | 3:56.89 | ||||
| 17 | 3 | 7 | 3:57.33 | ||||
| 18 | 2 | 5 | 3:57.55 | ||||
| 19 | 2 | 8 | 3:58.55 | ||||
| 20 | 2 | 4 | 4:00.03 | ||||
| 21 | 2 | 6 | 4:00.11 | ||||
| 22 | 3 | 1 | 4:01.38 | ||||
| 23 | 1 | 5 | 4:01.69 | ||||
| 24 | 3 | 2 | 4:02.40 | ||||
| 25 | 1 | 3 | 4:02.51 | ||||
| 26 | 1 | 2 | 4:03.34 | ||||
| 27 | 2 | 3 | 4:06.13 | ||||
| 28 | 1 | 4 | 4:06.24 | ||||
| 29 | 1 | 1 | 4:10.71 | ||||
| 30 | 1 | 7 | 4:11.13 | ||||
| 31 | 1 | 6 | 4:11.37 |
The final was held at 18:00.
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 6 | 3:49.76 | |||||
| 3 | 3:51.32 | |||||
| 7 | 3:51.55 | |||||
| 4 | 4 | 3:51.78 | ||||
| 5 | 2 | 3:53.55 | ||||
| 6 | 5 | 3:53.96 | ||||
| 7 | 1 | 3:55.07 | ||||
| 8 | 8 | 3:56.08 |