The men's 400 metres event at the 2007 Pan American Games was held on July 23–25.
Contents
Heats
Qualification: First 3 of each heat (Q) and the next 4 fastest (q) qualified for the semifinals.
Semifinals
Qualification: First 4 of each semifinal (Q) qualified directly for the final.
References
Athletics at the 2007 Pan American Games – Men's 400 metres Wikipedia(Text) CC BY-SA