400 Metres Result | The XXIX Olympic Games

First 2 in each heat (Q) and the next 2 fastest (q)

POS	ATHLETE	COUNTRY	MARK	Reaction Time
1	Jeremy Wariner	USA	44.15 Q	0.224
2	Chris Brown	BAH	44.59 Q	0.244
3	Kevin Borlée	BEL	44.88 NR	0.162
4	Nery Brenes	CRC	44.94 NR	0.169
5	Saul Welgopwa	NGR	45.02 SB	0.168
6	Williams Collazo	CUB	45.06 PB	0.191
7	Tabarie Henry	ISV	45.19 NR	0.165
8	Claudio Licciardello	ITA	45.64	0.259

POS	ATHLETE	COUNTRY	MARK	Reaction Time
1	Leslie Djhone	FRA	44.79 Q SB	0.159
2	David Neville	USA	44.91 Q	0.190
3	Joel Milburn	AUS	45.06	0.187
4	Ricardo Chambers	JAM	45.09	0.220
5	Jonathan Borlée	BEL	45.11 PB	0.191
6	James Godday	NGR	45.24	0.185
7	Andretti Bain	BAH	45.52	0.196
8	Andrew Steele	GBR	45.59	0.216

POS	ATHLETE	COUNTRY	MARK	Reaction Time
1	LaShawn Merritt	USA	44.12 Q	0.187
2	Martyn Rooney	GBR	44.60 Q PB	0.126
3	Johan Wissman	SWE	44.64 q SB	0.211
4	Renny Quow	TTO	44.82 q PB	0.204
5	Gary Kikaya	COD	44.94	0.187
6	Michael Mathieu	BAH	45.56	0.203
7	Sean Wroe	AUS	45.56	0.205
8	Cedric van Branteghem	BEL	45.81	0.199