The boys' 400 metres at the 2011 World Youth Championships in Athletics was held at the Stadium Lille Métropole on 6, 7 and 8 July.Timetable

Medalists GoldSilverBronzeArman Hall Alphas Kishoyian Patryk Dobek

Records Prior to the competition, the following records were as follows.

World Youth Best45.14Santiago, Chile 2 September 1995Championship Record45.24Brixen, Italy10 July 2009World Youth Leading46.22Winter Park, United States7 May 2011

During the competition, Arman Hall lowered his own world youth-leading 46.22 to post the second-fastest in championship history, 46.01.

Heats Qualification rule: first 3 of each heat (Q) plus the 3 fastest times (q) qualified.

Heat 1 Rank Lane Name Nationality Time Notes 1 7 Machel Cedenio 47.32 Q 2 3 Shotaro Akiyo 47.74 Q 3 6 Pieter Conradie 47.83 Q 4 8 José de Jesús Fraire 48.67 q 5 4 Sibongakonke Matsenjwa 48.73 PB 6 2 Mohamedine Mahamadou 48.78 PB 7 1 Maykon Pedro da Cunha 49.32 PB 8 5 Mohmmed Al Shueili 49.50

Heat 2 Rank Lane Name Nationality Time Notes 1 2 Thomas Jordier 47.89 Q, PB 2 4 David Kipkemoi Chemjor 48.15 Q 3 3 Mateo Ružić 48.39 Q 4 5 Samvel Grigoryan 49.64 PB 5 8 Zied Aissa 49.72 6 6 Lennox Williams 50.01 7 1 George Manebona 51.65 SB 7 Japhet Samuel DQ

Heat 3 Rank Lane Name Nationality Time Notes 1 6 Sadam Koumi 47.59 Q 2 4 Dongbaek Choi 47.87 Q, SB 3 2 Carlos Eduardo Grachet 48.20 Q 4 5 Jack Sheridan 48.48 q 5 8 Sondre Nyvold Lid 48.86 6 1 Attila Farkas 49.77 7 3 Jordan Geenen 49.96 8 7 Abdelkhedere Abdelbassit Abdelrahmane 51.54 PB

Heat 4 Rank Lane Name Nationality Time Notes 1 4 Najee Glass 47.92 Q 2 1 Patryk Dobek 48.13 Q 3 7 Timofey Chalyy 48.49 Q 4 5 Oleksiy Pozdnyakov 48.92 PB 5 3 Nathaniel George 49.90 6 6 Sandeep - 49.94 7 8 Sergi Torres 51.42 8 2 Omar Alkhatib 54.93 PB

Heat 5 Rank Lane Name Nationality Time Notes 1 3 Arman Hall 46.76 Q 2 2 Brendon Restall 47.31 Q, PB 3 7 Lorenzo Adams 48.05 Q 4 5 Basheer Atiah Al Barakati 49.42 5 1 Jørgen Kåshagen 50.34 6 6 Ever Carranza 50.60 7 4 Jatin Jain 54.03

Heat 6 Rank Lane Name Nationality Time Notes 1 6 Jarryd Buchan 47.12 Q, PB 2 7 Takuya Fukunaga 47.24 Q, PB 3 1 Alphas Kishoyian 47.31 Q 4 5 Rafał Smoleń 48.04 q, PB 5 4 Lucas Búa 49.04 6 3 Miloš Raović 49.07 PB 7 2 Lahiru Jamuni 49.26 PB 8 Aleksandr Lukyanenko DQ

Heat 7 Rank Lane Name Nationality Time Notes 1 5 Alex Boyce 47.82 Q, PB 2 8 Andre Wells 47.87 Q 3 3 Ahmed Yahya Al Khayri 48.78 Q, PB 4 4 Nitipol Thongpoon 49.72 5 1 Bariadora Friday Tamunosia 49.97 6 7 Dónald Arias 50.25 7 6 Usama Al-Gheilani 54.25 2 Bernardo Baloyes DQ

Semifinals Qualification rule: first 2 of each heat (Q) plus the 2 fastest times (q) qualified.

Heat 1 Rank Lane Name Nationality Time Notes 1 6 Takuya Fukunaga 47.30 Q 2 3 Andre Wells 47.36 Q 3 4 Najee Glass 47.42 4 5 Jarryd Buchan 47.53 5 8 David Kipkemoi Chemjor 47.90 6 7 Lorenzo Adams 48.01 7 1 Timofey Chalyy 48.45 8 2 José de Jesús Fraire 49.60

Heat 2 Rank Lane Name Nationality Time Notes 1 6 Arman Hall 46.70 Q 2 7 Patryk Dobek 47.19 Q, PB 3 3 Thomas Jordier 47.27 PB 4 8 Carlos Eduardo Grachet 47.58 PB 5 4 Alex Boyce 47.96 6 5 Dongbaek Choi 48.18 7 1 Jack Sheridan 49.39 8 2 Mateo Ružić 50.57

Heat 3 Rank Lane Name Nationality Time Notes 1 8 Alphas Kishoyian 46.52 Q 2 6 Sadam Koumi 47.08 Q 3 4 Machel Cedenio 47.12 q 4 3 Brendon Restall 47.26 q, PB 5 5 Shotaro Aikyo 47.42 PB 6 7 Pieter Conradie 47.58 7 2 Ahmed Yahya Al Khayri 48.57 1 Rafał Smoleń DQ

Final

Rank Lane Name Nationality Time Notes 4 Arman Hall 46.01 WYL 6 Alphas Kishoyian 46.58 8 Patryk Dobek 46.67 PB 4 2 Machel Cedenio 46.89 PB 5 5 Takuya Fukunaga 47.16 PB 6 7 Andre Wells 47.22 7 1 Brendon Restall 47.34 3 Sadam Koumi DNF

References