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Triathlon - Wikipedia
What is a Triathlon? Learn Order of Events and Race Types
USA Triathlon | USA Triathlon
The Complete Beginner’s Guide on How to Train For Your First Triathlon
World Triathlon
All you need to know about triathlon - Olympics.com
Triathlete - The world's number-one triathlon resource
World Triathlon Championship Series
What Is a Triathlon? 6 Common Triathlon Distances
Triathlon: Olympic history, rules, latest updates and upcoming …