Swimming at the 1971 Pan American Games – Men's 100 metre butterfly

The men's 100 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 10 August.[1][2] The last Pan American Games champion was Mark Spitz of US.[3][4][5][6][7][8]

Men's 100 metre butterfly at the VI Pan American Games
Venue	-
Dates	August 10 (preliminaries and finals)
Competitors	- from - nations
Medalists
Frank Heckl   United States   Jerry Heidenreich   United States   Byron MacDonald   Canada
«1967 1975»

This race consisted of two lengths of the pool, all in butterfly.[9]

Results

All times are in minutes and seconds.

KEY:

q

Fastest non-qualifiers

Q

Qualified

GR

Games record

NR

National record

PB

Personal best

SB

Seasonal best

Final

The final was held on August 10.[1]

Rank	Name	Nationality	Time	Notes
	Frank Heckl	United States	56.9
	Jerry Heidenreich	United States	57.3
	Byron MacDonald	Canada	58.4
4	Hugo Valencia	Mexico	59.4
5	Eduardo Orijuela	Ecuador	59.9
6	Augusto Gonzalez	Peru	1:00.0
7	Flávio Machado	Brazil	1:00.3
8	Francisco Ramos	Brazil	1:00.4

References

1. "O GLOBO News Archive - August 11, 1971, Morning, General, page 20". O GLOBO. Archived from the original on 30 August 2013. Retrieved 29 August 2013.
2. O GLOBO News Archive
3. Hickoksports Archived 2012-12-05 at Archive.today
4. Resultados
5. All Pan medalists - Male
6. All Pan medalists - Female
7. Pan American Games - Swimming and Diving page, from gbrathletics.com; retrieved 2012-04-15.
8. Brazil medals at 1971 Pan
9. "Swimming Technical Manual" (PDF). Guadalajara 2011. Archived from the original (PDF) on 28 July 2011. Retrieved 23 October 2011.