Athletics at the 1955 Pan American Games – Men's 400 metres explained

Event:	Men's 400 metres
Win Label:	Winning time

The men's 400 metres event at the 1955 Pan American Games was held at the Estadio Universitario in Mexico City on 17 and 18 March.^{[1] [2]}

Medalists

width=200 bgcolor=gold	Gold	width=200 bgcolor=silver	Silver	width=200 bgcolor=CC9966	Bronze
Lou Jones	Jim Lea	Jesse Mashburn

Results

Heats

Held on 17 March

Rank	Heat	Name	Nationality	Time	Notes
1	1			47.66	Q, GR
2	1			47.86	Q
3	1			47.94	Q
4	1			48.78
5	1			49.97
1	2			48.31	Q
2	2			48.62	Q
3	2			48.83	Q
4	2			49.57
5	2			51.62
	2
1	3			48.93	Q
2	3			48.94	Q
3	3			49.27	Q
4	3			49.47
1	4			50.59	Q
2	4			53.90	Q

Semifinals

Held on 17 March

Rank	Heat	Name	Nationality	Time	Notes
1	1			47.10	Q, GR
2	1			47.69	Q
3	1			47.91	Q
4	1			48.34
5	1			48.55
1	2			47.51	Q
2	2			48.01	Q
3	2			48.09	Q
4	2			48.28
5	2			48.61
6	2			49.66

Final

Held on 18 March

Rank	Name	Nationality	Time	Notes
			45.68	WR
			45.78
			46.44
4			48.37
5			48.84

Notes and References

1. http://atfs.org/wp-content/uploads/Pan-Am-Games-1955.pdf Full results
2. Web site: Track and Field Statistics . trackfield.brinkster.net. 16 October 2020.