Fitness Business Young People Are Driving a Surge in Triathlon Sign-Ups Courtney Rehfeldt December 16, 2025 Share on Facebook Share on Twitter Share via Email credit: Ironman Group Ironman Participation among athletes under 30 grew 35% this year, while the 30–34 age group remained the largest category for the second consecutive season Ironman’s… Membership Required This article is for ATN Pro members only. ATN Pro members get: Unlimited access to Athletech News articles Exclusive access to ATN Pro-level reporting Discounts to ATN the Innovation Summit VIP access to community events Exclusive email newsletters Subscribe Now Already a member? Log in Already a member? Log in here Tags: ATN Pro Data Gen Z in-person events Ironman women