The boys’ 400 m competition at the 2014 Summer Youth Olympics was held on 20–23 August 2014 in Nanjing Olympic Sports Center.
| Athletics – Boys' 400 metres at the II Summer Youth Olympic Games | |||||||||||||
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| Venue | Nanjing Olympic Sports Centre | ||||||||||||
| Date | August 20–23 | ||||||||||||
| Competitors | 21 from 21 nations | ||||||||||||
| Medalists | |||||||||||||
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Schedule
edit| Date | Time | Round |
|---|---|---|
| 20 August 2014 | 20:45 | Heats |
| 23 August 2014 | 10:06 | Final |
Results
editHeats
editEight 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 Maturana (COL) |
51.35 | FC | |
| 21 | 2 | 6 |  Malolefoua Posini (SAM) |
52.55 | FC |
Finals
editFinal A
edit| 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
edit| 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
edit| 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 Maturana (COL) |
50.30 | PB |
| 4 | 18 | 8 | Malolefoua Posini (SAM) |
52.23 | |
| 5 | Pawel Chmiel (POL) |
DNS | |||
| 6 | Dicki-Terry Mael (VAN) |
DNS |