Athletics at the 2014 Summer Youth Olympics – Boys' 400 metres
# Athletics at the 2014 Summer Youth Olympics – Boys' 400 metres

The boys’ 400 m competition at the 2014 Summer Youth Olympics was held on 20–23 August 2014 in Nanjing Olympic Sports Center.

## Schedule

| Date | Time | Round |
| - | - | - |
| 20 August 2014 | 20:45 | Heats |
| 23 August 2014 | 10:06 | Final |

## Results

### Heats

Eight fastest athletes advanced to Final A, the others advanced to Final B, or C according to their times.

| Rank | Heat | Lane | Athlete | Result | Notes | Q |
| - | - | - | - | - | - | - |
| 1 | 1 | 8 | Martin Manley (JAM) | 47.14 | | FA |
| 2 | 1 | 6 | Benjamin Lobo Vedel (DEN) | 47.27 | | FA |
| 3 | 2 | 4 | Gemechu Alemu (ETH) | 47.42 | PB | FA |
| 4 | 3 | 2 | Karabo Sibanda (BOT) | 47.43 | | FA |
| 5 | 2 | 2 | Henri Delauze (BAH) | 47.44 | | FA |
| 6 | 3 | 4 | Ian Mutuku (KEN) | 47.56 | | FA |
| 7 | 3 | 7 | Anderson Cerqueira (BRA) | 48.07 | | FA |
| 8 | 1 | 4 | Jesús Serrano (ESP) | 48.13 | | FA |
| 9 | 3 | 6 | Michael Mullett (AUS) | 48.24 | | FB |
| 10 | 3 | 8 | Ezequiel Suarez (PUR) | 48.53 | PB | FB |
| 11 | 2 | 8 | Kashief King (TTO) | 48.66 | | FB |
| 12 | 2 | 7 | Vitsanu Phosri (THA) | 48.96 | | FB |
| 13 | 1 | 2 | Andrew James (USA) | 49.06 | | FB |
| 14 | 1 | 3 | Choi Mingi (KOR) | 49.30 | | FB |
| 15 | 1 | 7 | Jason Yaw (GUY) | 49.41 | | FB |
| 16 | 3 | 3 | Pawel Chmiel (POL) | 49.42 | | FC |
| 17 | 2 | 3 | Chou Tzu-yao (TPE) | 50.01 | | FC |
| 18 | 1 | 5 | Mohammadreza Rahmani (IRI) | 50.37 | | FC |
| 19 | 3 | 5 | Dicki-Terry Mael (VAN) | 50.40 | PB | FC |
| 20 | 2 | 5 | Harold Estiven Maturana (COL) | 51.35 | | FC |
| 21 | 2 | 6 | Malolefoua Posini (SAM) | 52.55 | | FC |

### Finals

**Final A**

| Rank | Final Placing | Lane | Athlete | Result | Notes |
| - | - | - | - | - | - |
| | 1 | 4 | Martin Manley (JAM) | 46.31 | |
| | 2 | 5 | Karabo Sibanda (BOT) | 46.76 | PB |
| | 3 | 9 | Henri Delauze (BAH) | 46.91 | PB |
| 4 | 4 | 8 | Ian Mutuku (KEN) | 47.08 | |
| 5 | 5 | 6 | Benjamin Lobo Vedel (DEN) | 47.29 | |
| 6 | 6 | 7 | Gemechu Alemu (ETH) | 47.66 | |
| 7 | 7 | 2 | Anderson Cerqueira (BRA) | 47.81 | |
| 8 | 8 | 3 | Jesús Serrano (ESP) | 48.61 | |

**Final B**

| Rank | Final Placing | Lane | Athlete | Result | Notes |
| - | - | - | - | - | - |
| 1 | 9 | 2 | Jason Yaw (GUY) | 47.47 | |
| 2 | 10 | 3 | Michael Mullett (AUS) | 47.84 | |
| 3 | 11 | 4 | Kashief King (TTO) | 47.94 | PB |
| 4 | 12 | 6 | Vitsanu Phosri (THA) | 48.87 | |
| 5 | 13 | 5 | Ezequiel Suarez (PUR) | 49.27 | |
| 6 | 14 | 8 | Choi Mingi (KOR) | 50.40 | |
| | | 7 | Andrew James (USA) | DNS | |

**Final C**

| Rank | Final Placing | Lane | Athlete | Result | Notes |
| - | - | - | - | - | - |
| 1 | 15 | 7 | Mohammadreza Rahmani (IRI) | 49.80 | |
| 2 | 16 | 4 | Chou Tzu-yao (TPE) | 49.89 | |
| 3 | 17 | 3 | Harold Estiven Maturana (COL) | 50.30 | PB |
| 4 | 18 | 8 | Malolefoua Posini (SAM) | 52.23 | |
| | | 5 | Pawel Chmiel (POL) | DNS | |
| | | 6 | Dicki-Terry Mael (VAN) | DNS | |
