The men's 400 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10, 11, and 12 July. [1] [2] [3]
The men's 400 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10, 11, and 12 July. [1] [2] [3]
| Gold | Arman Hall  United States |
| Silver | Steven Solomon  Australia |
| Silver | Aldrich Bailey United States |
Prior to the competition [update] , the existing world junior and championship records were as follows.
| World Junior Record | Steve Lewis (USA) | 43.87 | Seoul, South Korea | 28 September 1988 |
| Championship Record |  Hamdan Al-Bishi (KSA) | 44.66 | Santiago, Chile | 20 October 2000 |
| World Junior Leading |  Luguelín Santos (DOM) | 44.45 | Hengelo, Netherlands | 27 May 2012 |
Qualification: The first 2 of each heat (Q) and the 8 fastest times (q) qualified
Qualification: The first 2 of each heat (Q) and the 2 fastest times (q) qualified
| Rank | Heat | Lane | Name | Nationality | Time | Note |
|---|---|---|---|---|---|---|
| 1 | 3 | 4 | Aldrich Bailey | United States | 45.79 | Q |
| 2 | 1 | 7 | Luguelín Santos | Dominican Republic | 45.98 | Q |
| 3 | 3 | 5 | Javon Francis |  Jamaica | 46.06 | Q, PB |
| 4 | 1 | 4 | Steven Solomon | Australia | 46.07 | Q |
| 5 | 3 | 5 | Boniface Ontuga Mweresa |  Kenya | 46.20 | q |
| 6 | 2 | 4 | Arman Hall | United States | 46.42 | Q |
| 7 | 1 | 6 | Alphas Leken Kishoyian | Kenya | 46.46 | q (*) |
| 8 | 1 | 8 | Nikita Uglov |  Russia | 46.49 | q |
| 9 | 3 | 2 | Patryk Dobek |  Poland | 46.56 | |
| 10 | 2 | 6 | Machel Cedenio |  Trinidad and Tobago | 46.59 | Q |
| 11 | 2 | 2 | Andrew Whyte |  New Zealand | 46.81 | |
| 12 | 3 | 9 | Jarryd Buchan | Australia | 46.81 | PB |
| 13 | 2 | 8 | José Meléndez |  Venezuela | 46.83 | |
| 14 | 2 | 9 | Pieter Conradie |  South Africa | 46.87 | |
| 15 | 1 | 9 | Michele Tricca |  Italy | 46.92 | |
| 16 | 2 | 7 | O'Jay Ferguson |  Bahamas | 47.02 | |
| 17 | 3 | 6 | Marco Lorenzi | Italy | 47.25 | |
| 18 | 2 | 5 | Stephan James |  Guyana | 47.35 | |
| 19 | 1 | 5 | Mateo Ružic |  Croatia | 47.46 | |
| 20 | 1 | 3 | Basheer Atiah Al Barakati | Saudi Arabia | 47.48 | |
| 21 | 3 | 4 | Daniel Gyasi |  Ghana | 47.78 | |
| 22 | 2 | 3 | Nikita Vesnin | Russia | 48.02 | |
| 23 | 1 | 2 | Sorin Vatamanu |  Romania | 48.15 | |
| 24 | 3 | 4 | Julio Arenas |  Spain | 50.00 |
*Alphas Leken Kishoyian had originally finished in 48.39, the last in his heat, but, since the starter's gun had fired before he settled in his blocks, a rerun was ordered in which he had to run by himself faster than 46.49, the time of the last fastest loser. He succeeded and was given the place in the final. [4]
| Rank | Lane | Name | Nationality | Time | Note |
|---|---|---|---|---|---|
 | 6 | Luguelín Santos | Dominican Republic | 44.85 | |
 | 4 | Arman Hall | United States | 45.39 | PB |
 | 8 | Steven Solomon | Australia | 45.52 | PB |
| 5 | Aldrich Bailey | United States | 45.52 | |
| 5 | 9 | Machel Cedenio | Trinidad and Tobago | 46.17 | |
| 6 | 1 | Alphas Leken Kishoyian | Kenya | 46.19 | |
| 7 | 3 | Boniface Ontuga Mweresa | Kenya | 46.50 | |
| 8 | 2 | Nikita Uglov | Russia | 46.61 | |
| 9 | 7 | Javon Francis | Jamaica | 47.57 |
According to an unofficial count, 62 athletes from 45 countries participated in the event.
Australia (2) Bahamas (2)
Bermuda (1)
Canada (2)
Chad (1)
Colombia (1)
Costa Rica (1) Croatia (1) Dominican Republic (1)
Fiji (1)
Finland (1) Ghana (2) Guyana (1)
Hungary (1)
India (1)
Iran (1) Italy (2) Jamaica (2)
Japan (2) Kenya (2)
Madagascar (1)
Mexico (2)
Moldova (1) New Zealand (1)
Nicaragua (1)
Niger (1)
Norway (2)
Oman (1)
Papua New Guinea (1) Poland (2)
Portugal (1) Romania (1) Russia (2)
Saint Lucia (1)
Saint Vincent and the Grenadines (1) Saudi Arabia (2)
Serbia (1)
Singapore (1) South Africa (2) Spain (2)
Sri Lanka (1) Trinidad and Tobago (2)
Ukraine (1) United States (2) Venezuela (1)
The men's 400 metres competition at the 2012 Summer Olympics in London, United Kingdom, was held at the Olympic Stadium on 4–6 August. Forty-nine athletes from 38 nations competed. The event was won by Kirani James of Grenada, earning the country its first Olympic medal. Luguelín Santos's silver was the Dominican Republic's first medal in the men's 400 metres. Lalonde Gordon's bronze was Trinidad and Tobago's first medal in the event since 1964.
The men's 100 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 11 July.
The men's 200 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12 and 13 July.
The men's 800 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13, 14, and 15 July.
The women's 800 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10, 11, and 12 July.
The women's 400 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 11, 12, and 13 July.
The women's 200 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12 and 13 July.
The women's 100 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 10 and 11 July.
The men's 1500 metres at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.
The women's 1500 metres at the 2012 World Junior Championships in Athletics will be held at the Estadi Olímpic Lluís Companys on 13 and 15 July.
The men's 110 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10–12 July.
The men's 400 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 11–13 July.
The men's 4 × 100 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 14 July.
The men's 4 × 400 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 14 and 15 July.
The men's 3000 metres steeplechase at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 15 July.
The women's 100 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13, 14, and 15 July.
The women's 400 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 12, 13, and 14 July.
The women's 3000 metres steeplechase at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 10 and 12 July.
The women's 4 × 100 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 13 and 14 July.
The women's 4 × 400 metres relay at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 14 and 15 July 2012.
