The sport that comprises events like the 100m freestyle and butterfly stroke is swimming. These events are competitions where swimmers race to complete a specified distance in water using various strokes. They are part of both competitive swimming championships and the Olympics. In the 100m freestyle, swimmers use an efficient front crawl technique to achieve the fastest time. The butterfly stroke, known for its distinctive movement and timing, adds complexity to the competitions. Swimming events highlight speed, technique, and endurance, crucial elements for success.