The men's 100 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 10 August. The Pan American Games champion was Mark Spitz of US. This race consisted of two lengths of the pool, all in butterfly.
The men's 100 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 10 August. The Pan American Games champion was Mark Spitz of US. This race consisted of two lengths of the pool, all in butterfly. (en)
The men's 100 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 10 August. The Pan American Games champion was Mark Spitz of US. This race consisted of two lengths of the pool, all in butterfly. (en)