What was the men's 1x400m track WR before Jamaica broke it at the Beijing 2008 Olympics?

Question

Need a quick answer

Answer 1

37.40

Answer 2

It was 37.40 set by the United States at the Barcelona Olympics!

Answer 3

37.40 set by the United States at the Barcelona Olympics in the 1992 and tied by the U.S. at the world championships a year later.

Answer 4

Old 4 x 100 mtrs record :

1-8-1993 in Stuttgart, Germany.

Jon Drummond, Andre Cason, Dennis Mitchell & Leroy Burrell.

37.40  

New 4 x 100 mtrs record :

22-8-2008 Beijing Olympics.

Nester Carter, Michael Frater, Usain Bolt and Asafa Powell              

37.10