The men's 100 metre butterfly competition of the

swimming Swimming is the self-propulsion of a person through water, or other liquid, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs and the body to achieve hydrodynamic thrust that r ...

events at the

1971 Pan American Games * The year 1971 had three partial solar eclipses (February 25, July 22 and August 20) and two total lunar eclipses (February 10, and August 6). The world population increased by 2.1% this year, the highest increase in history. Events Jan ...

took place on 10 August. The

last A last is a mechanical form shaped like a human foot. It is used by shoemakers and cordwainers in the manufacture and repair of shoes. Lasts typically come in pairs and have been made from various materials, including hardwoods, cast iron, and ...

Pan American Games The Pan American Games (also known colloquially as the Pan Am Games) is a continental multi-sport event in the Americas featuring summer sports, in which thousands of athletes participate in a variety of competitions. The competition is held ...

champion was

Mark Spitz Mark Andrew Spitz (born February 10, 1950) is an American former competitive swimmer and nine-time Olympic champion. He was the most successful athlete at the 1972 Summer Olympics in Munich, winning seven gold medals, each in world-record ti ...

of US.Brazil medals at 1971 Pan
/ref> This race consisted of two lengths of the pool, all in

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

Results

All times are in minutes and seconds.

Heats

Final

The final was held on August 10.

References

{{DEFAULTSORT:Swimming at the 1971 Pan American Games - Men's 100 metre butterfly Swimming at the 1971 Pan American Games