The World Triathlon Championship Series is a series of international triathlon competitions where athletes compete in a race that includes swimming, cycling, and running. The series takes place in different cities around the world and attracts top triathletes who race for points to determine the world champion. Each event in the series follows a standard format, and athletes must complete the three disciplines in a set order. The World Triathlon Championship Series is known for its challenging courses and high level of competition, bringing together the best triathletes globally.