# 2015 World Youth Championships in Athletics – Boys' 400 metres hurdles

The boys' 400 metres hurdles at the 2015 World Youth Championships in Athletics was held at the Estadio Olímpico Pascual Guerrero in Cali, Colombia on 15, 16 and 18 July 2015.

## Records

Prior to the competition, the following records were as follows.
| World Youth Best | L. J. van Zyl (RSA) | 48.89 | Kingston, Jamaica | 19 July 2002 |
| Championship Record | William Wynne (USA) | 49.01 | Ostrava, Czech Republic | 15 July 2007 |
| World Youth Leading | Rivaldo Leacock (BAR) | 51.34 | Basseterre, Saint Kitts and Nevis | 5 April 2015 |

## Results
### Round 1

First 3 in each heat (Q) and the next 6 fastest (q) advance to the semifinals.
| Rank | Heat | Name | Nationality | Time | Note |
| 1 | 2 | Ryusei Fujii | Japan | 50.87 | Q, WYL |
| 2 | 5 | Norman Grimes | United States | 50.95 | Q, PB |
| 3 | 6 | Rivaldo Leacock | Barbados | 51.35 | Q |
| 4 | 4 | Emmanuel Kipyegon Langat | Kenya | 51.70 | Q, PB |
| 5 | 4 | Hrvoje Čukman | Croatia | 52.09 | Q |
| 6 | 2 | Morné van As | South Africa | 52.16 | Q |
| 7 | 2 | Jauavney James | Jamaica | 52.38 | Q, PB |
| 8 | 4 | Federico Cesati | Italy | 52.68 | Q, PB |
| 9 | 3 | Mohamed Amine Touati | Tunisia | 52.71 | Q, PB |
| 10 | 1 | Wilfried Happio | France | 52.73 | Q, PB |
| 11 | 4 | Maksims Sinčukovs | Latvia | 52.83 | q, PB |
| 12 | 5 | Masaki Toyoda | Japan | 52.87 | Q, PB |
| 13 | 3 | Cory Poole | United States | 52.98 | Q |
| 14 | 1 | Gianni Lombard | South Africa | 52.99 | Q |
| 15 | 2 | Kim Hyun-bin | South Korea | 53.01 | q |
| 16 | 1 | Cody Pauli | Canada | 53.13 | Q, PB |
| 17 | 3 | Aleix Porras | Spain | 53.14 | Q |
| 18 | 1 | José Bermúdez | Guatemala | 53.28 | q, PB |
| 19 | 3 | Pablo Andrés Ibáñez | El Salvador | 53.35 | q |
| 20 | 6 | Vladimir Lysenko | Russia | 53.46 | Q |
| 21 | 6 | Darshana Kumarabatagalla | Sri Lanka | 53.60 | Q |
| 22 | 6 | Akram Bekhtaoui | Algeria | 53.62 | q, PB |
| 23 | 6 | Mattia Di Panfilo | Italy | 53.64 | q |
| 24 | 4 | Osmar Torres | Mexico | 53.65 | |
| 25 | 1 | Yolver Cumache | Venezuela | 53.66 | |
| 26 | 5 | Huang Mingjian | China | 53.68 | Q |
| 27 | 2 | Yeóryios Kaloyerákis | Greece | 53.71 | |
| 28 | 2 | Ricardo Ortiz | El Salvador | 53.74 | PB |
| 29 | 2 | Alisher Pulotov | Tajikistan | 53.87 | PB |
| 30 | 5 | Nicholas Kiprotich Chirchir | Kenya | 54.13 | |
| 31 | 3 | Sandi Omeradžič | Slovenia | 54.14 | |
| 32 | 5 | Fernando Vega | Mexico | 54.27 | |
| 33 | 1 | Cristóbal Muñoz | Chile | 54.29 | PB |
| 34 | 6 | Aljani Bridgewater | Saint Kitts and Nevis | 54.60 | |
| 35 | 3 | Tim Nemeth | Austria | 54.63 | |
| 36 | 3 | Scott Chalupiak | Canada | 54.64 | PB |
| 37 | 5 | Santhosh Kumar Tamilarasan | India | 54.92 | |
| 38 | 3 | Muath Al-Saad | Saudi Arabia | 55.04 | |
| 39 | 6 | Quek Lee Yong | Malaysia | 55.36 | PB |
| 40 | 4 | Branson Rolle | Bahamas | 55.70 | |
| 41 | 1 | Wei Bin Ow Yeong | Singapore | 55.99 | |
| 42 | 6 | Samo Stankovič | Slovenia | 56.19 | |
| 43 | 4 | Adam Yakobi | Israel | 56.56 | |
| 44 | 5 | Juan Durán | Colombia | 58.52 | |
| 45 | 4 | Mohamed Faleh | Tunisia | 59.21 | |
| – | 2 | Ali Binate | Algeria | DQ | |
| – | 5 | Shokhrukh Baratov | Uzbekistan | DQ | |
| – | 1 | Leonardo Ledgister | Jamaica | DNS | |

### Semifinal

First 2 in each heat (Q) and the next 2 fastest (q) advance to the final.
| Rank | Heat | Name | Nationality | Time | Note |
| 1 | 1 | Masaki Toyoda | Japan | 50.72 | Q, WYL |
| 2 | 1 | Emmanuel Kipyegon Langat | Kenya | 51.13 | Q, PB |
| 3 | 1 | Rivaldo Leacock | Barbados | 51.20 | q, PB |
| 4 | 2 | Ryusei Fujii | Japan | 51.21 | Q |
| 5 | 3 | Norman Grimes | United States | 51.41 | Q |
| 6 | 3 | Mohamed Amine Touati | Tunisia | 51.92 | Q, PB |
| 7 | 2 | Jauavney James | Jamaica | 51.96 | Q, PB |
| 7 | 3 | Morné van As | South Africa | 51.96 | q |
| 9 | 2 | Hrvoje Čukman | Croatia | 52.33 | |
| 10 | 1 | Aleix Porras | Spain | 52.38 | |
| 11 | 1 | José Bermúdez | Guatemala | 52.39 | PB |
| 12 | 3 | Kim Hyun-bin | South Korea | 52.51 | PB |
| 13 | 1 | Cody Pauli | Canada | 52.52 | PB |
| 14 | 2 | Gianni Lombard | South Africa | 52.53 | |
| 15 | 1 | Pablo Andrés Ibáñez | El Salvador | 52.56 | PB |
| 16 | 2 | Maksims Sinčukovs | Latvia | 52.63 | PB |
| 17 | 3 | Vladimir Lysenko | Russia | 52.75 | PB |
| 18 | 3 | Federico Cesati | Italy | 52.87 | |
| 19 | 1 | Cory Poole | United States | 52.88 | |
| 20 | 2 | Wilfried Happio | France | 53.42 | |
| 21 | 3 | Darshana Kumarabatagalla | Sri Lanka | 53.95 | |
| 22 | 3 | Akram Bekhtaoui | Algeria | 53.96 | |
| 23 | 2 | Mattia Di Panfilo | Italy | 54.35 | |
| 24 | 2 | Huang Mingjian | China | 57.79 | |

### Final

| Rank | Name | Nationality | Time | Note |
| | Norman Grimes | United States | 49.11 | WYL |
| | Ryusei Fujii | Japan | 50.33 | PB |
| | Masaki Toyoda | Japan | 50.53 | PB |
| 4 | Rivaldo Leacock | Barbados | 51.13 | PB |
| 5 | Emmanuel Kipyegon Langat | Kenya | 52.15 | |
| 6 | Mohamed Amine Touati | Tunisia | 52.73 | |
| 7 | Morné van As | South Africa | 1:10.74 | |
| – | Jauavney James | Jamaica | DQ | |