The men's 4 × 100 metre freestyle relay competition of the swimming events at the 1975 Pan American Games took place on 20 October.O GLOBO News Archive The defending Pan American Games champion is the United States.Hickoksports ResultadosAll Pan medalists - MaleAll Pan medalists - FemalePan American Games - Swimming and Diving page, from gbrathletics.com; retrieved 2012-04-15.Brazil medals at 1975 Pan
