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 men's 100 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 Mark Spitz 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 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 men's 100 metre butterfly competition of the swimming events at the 1979 Pan American Games took place on 7 July at the Piscina Olimpica Del Escambron. The last Pan American Games champion was Mike Curington of US.
The Women's 100m Butterfly competition of the swimming events at the 1979 Pan American Games took place on 5 July at the Piscina Olimpica Del Escambron in San Juan, Puerto Rico. The last Pan American Games champion was Camille Wright of US.
The men's 100 metre butterfly competition of the swimming events at the 1983 Pan American Games took place on 18 August. The last Pan American Games champion was Robert Placak of US.
The men's 200 metre butterfly competition of the swimming events at the 1983 Pan American Games took place on 21 August. The last Pan American Games champion was Craig Beardsley of the United States.
The men's 200 metre individual medley competition of the swimming events at the 1983 Pan American Games took place on 22 August. The last Pan American Games champion was Jesse Vassallo of US.
The women's 100 metre butterfly competition of the swimming events at the 1983 Pan American Games took place on 20 August. The last Pan American Games champion was Jill Sterkel of US.
The women's 200 metre individual medley competition of the swimming events at the 1983 Pan American Games took place on 21 August. The last Pan American Games champion was Tracy Caulkins of the United States.
The Men's 100 metre butterfly competition of the swimming events at the 1987 Pan American Games took place on 10 August at the Indiana University Natatorium. The last Pan American Games champion was Matt Gribble of US.
The men's 200 metre individual medley competition of the swimming events at the 1987 Pan American Games took place on 15 August at the Indiana University Natatorium. The last Pan American Games champion was Ricardo Prado of Brazil.
The women's 200 metre individual medley competition of the swimming events at the 1987 Pan American Games took place on 14 August at the Indiana University Natatorium. The last Pan American Games champion was Tracy Caulkins of US.
The men's 100 metre butterfly competition of the swimming events at the 1991 Pan American Games took place on 13 August. The last Pan American Games champion was Anthony Nesty of Suriname.
The men's 200 metre individual medley competition of the swimming events at the 1991 Pan American Games took place on 18 August. The last Pan American Games champion was Bill Stapleton of US.
The women's 100 metre butterfly competition of the swimming events at the 1991 Pan American Games took place on 16 August. The last Pan American Games champion was Janel Jorgensen of US.
The men's 100 metre butterfly competition of the swimming events at the 1999 Pan American Games took place on 3 August at the Pan Am Pool. The last Pan American Games champion was Mark Henderson of US.
The men's 200 metre individual medley competition of the swimming events at the 1999 Pan American Games took place on 7 August at the Pan Am Pool. The last Pan American Games champion was Curtis Myden of Canada.
The women's 100 metre butterfly competition of the swimming events at the 1999 Pan American Games took place on 5 August at the Pan Am Pool. The last Pan American Games champion was Amy Van Dyken of US.
