Swimming is a sport of various intensities and durations. Swimming events include 50 and 100 meters (sprints), 200 and 400 meters (middle distances), and 800 and 1,500 meters (distance). Long-distance swimming encompasses the swim portion of the full triathlon (2.4 miles) and ultraendurance events, such as swimming the English Channel (~24 miles). All swimmers have demanding training, so adequate daily energy and nutrient intake are important. Learn more about the sport at the USA Swimming website (www.usaswimming.org).