The men's 400 metres event at the 1997 IAAF World Indoor Championships was held on March 7–9.
Contents
Heats
First 2 of each heat (Q) and next 4 fastest (q) qualified for the semifinals.
Semifinals
First 2 of each semifinal (Q) qualified directly for the final.
References
1997 IAAF World Indoor Championships – Men's 400 metres Wikipedia(Text) CC BY-SA