| Men's 100 metre butterfly at the VI Pan American Games | ||||||||||
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| Venue | - | |||||||||
| Dates | August 10 (preliminaries and finals) | |||||||||
| Competitors | - from - nations | |||||||||
| Medalists | ||||||||||
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«1967 1975» | ||||||||||
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]
This race consisted of two lengths of the pool, all in butterfly. [9]
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 |
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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 |
The men's 200 metre backstroke competition of the swimming events at the 1971 Pan American Games took place on 8 August. The last Pan American Games champion was Ralph Hutton of Canada.
The Women's 400 metre individual medley competition of the swimming events at the 1971 Pan American Games took place on 8 August. The last Pan American Games champion was Claudia Kolb of US.
The men's 200 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 8 August. The last Pan American Games champion was Mark Spitz of US.
The women's 100 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 8 August. The last Pan American Games champion was Ellie Daniel of US.
The Women's 200 metre freestyle competition of the swimming events at the 1971 Pan American Games took place on 7 August. The last Pan American Games champion was Pam Kruse of US.
The men's 400 metre individual medley competition of the swimming events at the 1971 Pan American Games took place on 7 August. The last Pan American Games champion was William Utley of US.
The women's 100 metre backstroke competition of the swimming events at the 1971 Pan American Games took place on 7 August. The last Pan American Games champion was Elaine Tanner of Canada.
The women's 800 metre freestyle competition of the swimming events at the 1971 Pan American Games took place on 11 August. The last Pan American Games champion was Debbie Meyer of US.
The men's 200 metre freestyle competition of the swimming events at the 1971 Pan American Games took place on 6 August. The last Pan American Games champion was Don Schollander of US.
The women's 200 metre individual medley competition of the swimming events at the 1971 Pan American Games took place on 6 August. The last Pan American Games champion was Claudia Kolb of US.
The men's 100 metre backstroke competition of the swimming events at the 1971 Pan American Games took place on 6 August. The last Pan American Games champion was Don Schollander of US.
The women's 200 metre backstroke competition of the swimming events at the 1971 Pan American Games took place on 9 August. The last Pan American Games champion was Elaine Tanner of Canada.
The men's 200 metre individual medley competition of the swimming events at the 1971 Pan American Games took place on 9 August. The last Pan American Games champion was Doug Russell of US.
The women's 200 metre breaststroke competition of the swimming events at the 1971 Pan American Games took place on 9 August. The last Pan American Games champion was Catie Ball of US.
The women's 200 metre butterfly competition of the swimming events at the 1971 Pan American Games took place on 10 August. The last Pan American Games champion was Claudia Kolb of US.
The women's 100 metre butterfly competition of the swimming events at the 1975 Pan American Games took place on 21 October. The last Pan American Games champion was Deena Deardurff of the United States.
The men's 200 metre individual medley competition of the swimming events at the 1975 Pan American Games took place on 22 October. The last Pan American Games champion was Steve Furniss of the United States.
The men's 100 metre butterfly competition of the swimming events at the 1975 Pan American Games took place on 23 October. The last Pan American Games champion was Frank Heckl of the United States.
The women's 200 metre individual medley competition of the swimming events at the 1975 Pan American Games took place on 19 October. The last Pan American Games champion was Leslie Cliff of Canada.
The women's 100 metre butterfly competition of the swimming events at the 1959 Pan American Games took place on 2 September (preliminaries) and 4 September (finals). The last Pan American Games champion was Beth Whittall of Canada.
