How to Watch the Women's 2025 IRONMAN World Championship in Kona

More than 1,600 registered female triathletes from around the world will gather in Kailua-Kona, Hawai`i, for the 2025 IRONMAN® World Championship triathlon. Age-group and professional athletes from 78 regions, countries, and territories will tackle the legendary course as they race for world titles at the IRONMAN® World Championship event.

The United States of America is the most represented nation with 482 registered athletes, followed by Germany (207), Canada (114), Australia (102), the United Kingdom (99), and France (70). Other athletes from countries as far as Bolivia, the Czech Republic, Indonesia, Mongolia, Saudi Arabia, and Venezuela are traveling to race in the 2025 IRONMAN World Championship triathlon. 

Fans around the world can enjoy live race day coverage of the women’s 2025 IRONMAN World Championship triathlon for free across multiple platforms including proseries.ironman.com, DAZN, and YouTube, as well as Outside TV in the U.S. and Canada, L’Équipe in France, HR in Germany, ESPN (within Disney+) in Latin America and the Caribbean, iQIYI in China, and SuperSport in South Africa. 

Live race day coverage will begin at 4:30 a.m. HST / 10:30 a.m. EDT / 4:30 p.m. CET. 

Every athlete that lines up on the shores of Kailua Bay on Saturday, Oct. 11, for the women’s edition of the 2025 IRONMAN World Championship triathlon has their own unique and personal journey to the start line, but all showcase the same dedication and perseverance that has brought them center stage of the triathlon world.

Here are a few interesting facts and stats on the field competing in the 2025 IRONMAN World Championship women's race in Kaliua-Kona, Hawai`i:   

- 43 is the average age of all registrants   

- Natalie Grabow (USA) is the oldest athlete participant at 80, while Leah Hoole (GBR) is the youngest at 19

- 6 athletes will be celebrating their birthdays on race day, including professional athlete Jackie Hering (USA)

- 78 countries, regions and territories are represented, with the top five being the United States, Germany, Canada, Australia, the United Kingdom, and France

- 46 U.S. states are accounted for, with the top five states in athlete count being California, Texas, Colorado, Florida, and Illinois

- Of the 15 registered athletes from Hawai`i, 8 are from the Island of Hawai`i

- This year’s field comprises seven returning age group champions from the 2025 IRONMAN World Championship race: China’s Yixuan Chen (F18-24), Poland’s Joanna Soltysiak-Vrebac (F35-39), the United States’ Jana Richtrova (F45-49), Switzerland’s Loubna Freih (F55-59), the United States’ Christine Glah (F60-64), Judy McNary (F65-69), and Missy Lestrange (F70-74)

- 43 qualifying races from around the globe in 2024 and 2025 enabled athletes to reach the IRONMAN World Championship   

- Approximately 5,000 volunteers will be helping across race week and on race day to help make the IRONMAN World Championship women’s race in Kailua-Kona successful in 2025.   

Beginning in the crystal-clear waters of Kailua Bay, athletes taking part in the 2025 IRONMAN World Championship triathlon will tackle the 2.4-mile (3.8km) ROKA swim course before heading out on the 112-mile (180.2km) ZOOT bike course, renowned for its historic long sustained climbs, strong crosswinds, and exposed terrain beauty with lava fields on one side and the ocean coastline on the other. 

The final leg of the race sees athletes take on the 26.2-mile (42.2km) HOKA run course, an out-and-back that takes athletes past the spirited crowds on Ali`i Drive, up Palani Road to the Queen Ka`ahumanu Highway, which leads them to the long-awaited HOST Park at the National Energy Laboratory Hawai`i Authority (NELHA). 

Athletes will complete their journey to the roar of thousands of spectators as they cross the historic Ali`i Drive finish line. Further details of the course can be found here.