# 2006 World Junior Championships in Athletics – Men's 400 metres

The men's 400 metres event at the 2006 World Junior Championships in Athletics was held in Beijing, China, at Chaoyang Sports Centre on 15, 16 and 17 August.

## Medalists

| Gold | Renny Quow Trinidad and Tobago |
| Silver | Justin Oliver United States |
| Bronze | Martyn Rooney United Kingdom |

## Results
### Final

17 August
| Rank | Name | Nationality | Time |
| | Renny Quow | Trinidad and Tobago | 45.74 |
| | Justin Oliver | United States | 45.78 |
| | Martyn Rooney | United Kingdom | 45.87 |
| 4 | Jonathan Borlée | Belgium | 46.06 |
| 5 | Edino Steele | Jamaica | 46.42 |
| 6 | Allodin Fothergill | Jamaica | 46.68 |
| 7 | Yuzo Kanemaru | Japan | 46.70 |
| 8 | Andrew Dargie | Canada | 46.87 |

### Semifinals

16 August

#### Semifinal 1

| Rank | Name | Nationality | Time | Notes |
| 1 | Yuzo Kanemaru | Japan | 46.04 | Q |
| 2 | Jonathan Borlée | Belgium | 46.08 | Q |
| 3 | Allodin Fothergill | Jamaica | 46.68 | q |
| 4 | Julius Kirwa | Kenya | 46.76 | |
| 5 | Niko Verekauta | Fiji | 46.77 | |
| 6 | Anton Kokorin | Russia | 46.78 | |
| 7 | Alvin Samuels | South Africa | 47.21 | |
| 8 | Yannick Fonsat | France | 47.79 | |

#### Semifinal 2

| Rank | Name | Nationality | Time | Notes |
| 1 | Renny Quow | Trinidad and Tobago | 46.18 | Q |
| 2 | Justin Oliver | United States | 46.22 | Q |
| 3 | Grant Baker | United Kingdom | 46.85 | |
| 4 | Kevin Borlée | Belgium | 46.95 | |
| 5 | Victor Isaiah | Nigeria | 46.98 | |
| 6 | Aitor Martín | Spain | 47.35 | |
| 7 | Alex Bubner | Australia | 47.43 | |
| 8 | Mohamed Al-Rawahi | Oman | 47.74 | |

#### Semifinal 3

| Rank | Name | Nationality | Time | Notes |
| 1 | Martyn Rooney | United Kingdom | 46.01 | Q |
| 2 | Andrew Dargie | Canada | 46.45 | Q |
| 3 | Edino Steele | Jamaica | 46.55 | q |
| 4 | Silvester Kirwa Meli | Kenya | 46.84 | |
| 5 | Quentin Summers | United States | 47.04 | |
| 6 | Dmitriy Buryak | Russia | 47.24 | |
| 7 | Reza Bouazar | Iran | 47.25 | |
| 8 | Dylan Grant | Australia | 47.41 | |

### Heats

15 August

#### Heat 1

| Rank | Name | Nationality | Time | Notes |
| 1 | Renny Quow | Trinidad and Tobago | 45.91 | Q |
| 2 | Julius Kirwa | Kenya | 46.23 | Q |
| 3 | Dmitriy Buryak | Russia | 47.27 | q |
| 4 | Todd Pyper | Canada | 48.07 | |
| 5 | Kenneth Serameng | Botswana | 48.78 | |
| 6 | Martin Hrstka | Czech Republic | 49.61 | |
| 7 | Li Jinlong | China | 56.29 | |

#### Heat 2

| Rank | Name | Nationality | Time | Notes |
| 1 | Edino Steele | Jamaica | 46.59 | Q |
| 2 | Reza Bouazar | Iran | 47.24 | Q |
| 3 | Virender Kumar Pankaj | India | 47.60 | |
| 4 | Philippe Sébastien Djaovazaha | Madagascar | 48.21 | |
| 5 | Guo Jian | China | 48.68 | |
| 6 | Yonas Al-Hosah | Saudi Arabia | 48.76 | |
| 7 | Ismail Shaneem | Maldives | 53.84 | |

#### Heat 3

| Rank | Name | Nationality | Time | Notes |
| 1 | Martyn Rooney | United Kingdom | 46.25 | Q |
| 2 | Victor Isaiah | Nigeria | 47.20 | Q |
| 3 | Alex Bubner | Australia | 47.46 | q |
| 4 | Joel Phillip | Grenada | 47.59 | |
| 5 | Abu Bakarr Camara | Sierra Leone | 49.96 | |
| 6 | Mohsen Zarinafzal | Iran | 50.38 | |
| 7 | Stevorn Richards | Saint Vincent and the Grenadines | 51.64 | |

#### Heat 4

| Rank | Name | Nationality | Time | Notes |
| 1 | Quentin Summers | United States | 47.24 | Q |
| 2 | Alvin Samuels | South Africa | 47.49 | Q |
| 3 | László Bartha | Hungary | 47.88 | |
| 4 | Petr Vanek | Czech Republic | 47.98 | |
| 5 | Teo Turchi | Italy | 48.66 | |
| 6 | Christian Santiago | Puerto Rico | 48.96 | |
| | Juan Lewis | Bahamas | DQ | |

#### Heat 5

| Rank | Name | Nationality | Time | Notes |
| 1 | Yuzo Kanemaru | Japan | 46.53 | Q |
| 2 | Grant Baker | United Kingdom | 46.79 | Q |
| 3 | Silvester Kirwa Meli | Kenya | 47.04 | q |
| 4 | Kevin Borlée | Belgium | 47.07 | q |
| 5 | Yoann Décimus | France | 48.45 | |
| 6 | Gayan Rathnayake | Sri Lanka | 49.26 | |
| | Arnold Sorina | Vanuatu | DQ | |

#### Heat 6

| Rank | Name | Nationality | Time | Notes |
| 1 | Jonathan Borlée | Belgium | 46.25 | Q |
| 2 | Andrew Dargie | Canada | 46.68 | Q |
| 3 | Mohamed Al-Rawahi | Oman | 47.05 | q |
| 4 | Anton Kokorin | Russia | 47.33 | q |
| 5 | Bineesh V. Baby | India | 48.60 | |
| 6 | Sebastijan Jagarinec | Slovenia | 48.68 | |
| 7 | Mamoudou Hanne | Mali | 49.56 | |
| | Fernando López | Uruguay | DQ | |

#### Heat 7

| Rank | Name | Nationality | Time | Notes |
| 1 | Aitor Martín | Spain | 47.14 | Q |
| 2 | Allodin Fothergill | Jamaica | 47.15 | Q |
| 3 | Niko Verekauta | Fiji | 47.30 | q |
| 4 | Tetsuji Yamamoto | Japan | 47.52 | |
| 5 | Jameson Strachan | Bahamas | 49.07 | |
| 6 | Stefanos Anastasiou | Cyprus | 51.95 | |
| | Moses Mlambo | Swaziland | DQ | |
| | Adam Al-Nour | Sudan | DNF | |

#### Heat 8

| Rank | Name | Nationality | Time | Notes |
| 1 | Justin Oliver | United States | 46.86 | Q |
| 2 | Yannick Fonsat | France | 47.24 | Q |
| 3 | Dylan Grant | Australia | 47.40 | q |
| 4 | Pieter Smit | South Africa | 47.89 | |
| 5 | Abdel Bashar El-Farzdag | Sudan | 48.26 | |
| 6 | Amran Raj Krishnan | Malaysia | 48.48 | |
| 7 | Jesús Pérez | Spain | 48.62 | |

## Participation

According to an unofficial count, 58 athletes from 40 countries participated in the event.
* Australia (2)
* Bahamas (2)
* Belgium (2)
* Botswana (1)
* Canada (2)
* China (2)
* Cyprus (1)
* Czech Republic (2)
* Fiji (1)
* France (2)
* Grenada (1)
* Hungary (1)
* India (2)
* Iran (2)
* Italy (1)
* Jamaica (2)
* Japan (2)
* Kenya (2)
* Madagascar (1)
* Malaysia (1)
* Maldives (1)
* Mali (1)
* Nigeria (1)
* Oman (1)
* Puerto Rico (1)
* Russia (2)
* Saint Vincent and the Grenadines (1)
* Saudi Arabia (1)
* Sierra Leone (1)
* Slovenia (1)
* South Africa (2)
* Spain (2)
* Sri Lanka (1)
* Sudan (2)
* Swaziland (1)
* Trinidad and Tobago (1)
* United Kingdom (2)
* United States (2)
* Uruguay (1)
* Vanuatu (1)