Freestyle swimming has been included in every modern Olympics. Currently, freestyle is contested in more Olympic events than any other stroke, at distances of 50m, 100m, 200m, 400m, 800m, and 1500m.

At USA Swimming's annual Golden Goggles awards in ... make the Olympic team in multiple events," Douglass recalled, "and kind of be as dominant as I can this summer." Douglass' competitive drive ...

Each swimming stroke has specific rules designed to ensure that no swimmer gets an unfair competitive advantage over another swimmer.