An Olympic medley includes four swimming strokes: butterfly, backstroke, breatstroke, and freestyle. Each swimmer specializes in one of these strokes, competing over a distance of 400 meters in total. The event showcases the versatility of athletes, as they must excel in each swimming technique to contribute to their team's success. The medley relay, another variation, involves teams of four swimmers completing their respective strokes sequentially. This format emphasizes both individual skill and teamwork, making it a highlight of the swimming competitions in the Olympics.