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.

Medalists Gold Luguelín SantosSilver Arman HallBronze Steven SolomonBronze Aldrich Bailey

Records , the existing world junior and championship records were as follows.

World Junior Record43.87Seoul, South Korea28 September 1988Championship Record44.66Santiago, Chile20 October 2000World Junior Leading44.45Hengelo, Netherlands27 May 2012

Results

Heats Qualification: The first 2 of each heat (Q) and the 8 fastest times (q) qualified

Rank Heat Lane Name Nationality Time Note 1 6 8 Arman Hall 46.13 Q 2 1 5 Boniface Ontuga Mweresa 46.16 Q 2 7 5 Steven Solomon 46.16 Q 4 4 3 Alphas Leken Kishoyian 46.22 Q 5 6 7 Mateo Ružic 46.30 Q, PB 6 5 5 Javon Francis 46.31 Q, PB 6 6 3 Michele Tricca 46.31 q, SB 8 5 2 Luguelín Santos 46.34 Q 9 8 4 Aldrich Bailey 46.40 Q 10 7 4 Julio Arenas 46.42 Q, PB 11 7 3 José Meléndez 46.45 q, PB 12 2 6 Machel Cedenio 46.58 Q 13 5 7 Andrew Whyte 46.62 q, PB 14 2 5 O'Jay Ferguson 46.69 Q 15 8 8 Pieter Conradie 46.70 Q 16 6 4 Daniel Gyasi 46.85 q, PB 17 1 2 Patryk Dobek 46.90 Q 18 3 2 Stephan James 46.99 Q, NJ 18 5 6 Sorin Vatamanu 46.99 q 20 4 9 Jarryd Buchan 47.04 Q 21 8 5 Basheer Atiah Al Barakati 47.07 q, PB 22 1 6 Marco Lorenzi 47.19 q 23 8 3 Nikita Vesnin 47.22 q 24 7 8 Lennox Williams 47.31 25 3 8 Nikita Uglov 47.37 Q 25 7 9 Rafał Smoleń 47.37 27 8 2 Shaquille Dill 47.38 28 1 4 Sondre Nyvold Lid 47.40 29 1 7 Talbert Poleon 47.45 30 3 7 Diego Palomeque 47.55 31 4 6 Ruan Greyling 47.65 32 4 8 Bandar Atiyah Kaabi 47.79 33 6 6 Luis Alonso Murillo 47.85 34 5 3 Lucka Raherindrainy 47.90 PB 35 7 2 Asa Guevara 47.93 36 3 5 Kazushi Kimura 47.98 37 8 1 Oleksiy Pozdnyakov 48.00 38 5 1 Kenta Kimura 48.03 38 6 9 José Ricardo Jiménez 48.03 40 3 3 Benjamin Ayesu-Attah 48.08 41 3 9 Roy Ravana 48.17 42 6 2 Elroy McBride 48.18 43 5 9 Dávid Bartha 48.32 44 1 8 Marc-André Alexandre 48.37 45 2 7 Jani Koskela 48.46 46 8 9 Kwame Donyinah 48.55 47 2 4 Chin Hui Ng 48.56 48 1 9 Alexander Rohani 48.59 49 4 7 Alexandru Babian 48.63 50 1 3 Sumit Malik 48.82 50 4 5 Miloš Raovic 48.82 52 5 4 Victor Soares 48.93 52 8 6 Brandon Valentine-Parris 48.93 PB 54 4 4 Lucas Bua 48.94 55 2 3 Mohamedine Mahamadou 49.05 56 2 2 D. Madushanka Ranasinghearachchilage 49.43 57 2 8 José Fernando Martínez 49.71 58 5 8 Marcio Cruz 50.77 PB 59 7 7 Abdelkhedere Abdelrahaman Abdelbassit 50.80 PB 60 3 4 Mohammed Al Shueili 51.04 6 5 John Rivan 7 6 Andreas Roth 2 9 Sadam Suliman Koumi 3 6 Mohamed Belbachir 4 2 Madunta Chukwuma 8 7 Gedeon Tshimanga Mutombo

Semi-final 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 45.79 Q 2 1 7 Luguelín Santos 45.98 Q 3 3 5 Javon Francis 46.06 Q, PB 4 1 4 Steven Solomon 46.07 Q 5 3 5 Boniface Ontuga Mweresa 46.20 q 6 2 4 Arman Hall 46.42 Q 7 1 6 Alphas Leken Kishoyian 46.46 q (*) 8 1 8 Nikita Uglov 46.49 q 9 3 2 Patryk Dobek 46.56 10 2 6 Machel Cedenio 46.59 Q 11 2 2 Andrew Whyte 46.81 12 3 9 Jarryd Buchan 46.81 PB 13 2 8 José Meléndez 46.83 14 2 9 Pieter Conradie 46.87 15 1 9 Michele Tricca 46.92 16 2 7 O'Jay Ferguson 47.02 17 3 6 Marco Lorenzi 47.25 18 2 5 Stephan James 47.35 19 1 5 Mateo Ružic 47.46 20 1 3 Basheer Atiah Al Barakati 47.48 21 3 4 Daniel Gyasi 47.78 22 2 3 Nikita Vesnin 48.02 23 1 2 Sorin Vatamanu 48.15 24 3 4 Julio Arenas 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.http://www.iaaf.org/Mini/WJC12/News/NewsDetail.aspx?id=65822

Final

Rank Lane Name Nationality Time Note 6 Luguelín Santos 44.85 4 Arman Hall 45.39 PB 8 Steven Solomon 45.52 PB 5 Aldrich Bailey 45.52 5 9 Machel Cedenio 46.17 6 1 Alphas Leken Kishoyian 46.19 7 3 Boniface Ontuga Mweresa 46.50 8 2 Nikita Uglov 46.61 9 7 Javon Francis 47.57

Participation According to an unofficial count, 62 athletes from 45 countries participated in the event.

References

External links WJC12 400 metres schedule