More than 1,600 registered female triathletes from around the world are gathering in Kailua-Kona, Hawaii, for the 2025 IRONMAN World Championship triathlon.
Taking place on Saturday, October 11, 2025, age-group and professional athletes from 78 regions, countries, and territories will tackle the long distance triathlon course as they race for world titles at the IRONMAN World Championship event.
“After witnessing an unforgettable race and some incredible performance from our male athletes several weeks ago in Nice, France, we are excited to welcome more than 1,600 women to Kona for the 2025 IRONMAN World Championship,” said Diana Bertsch, Senior Vice President of World Championship Events at The IRONMAN Group.
“There is little that compares to race day in Kona and as we prepare for many of the best professional and age group women to have their turn at racing this iconic global sporting event, we also appreciate the amazing community who host and welcome us. We welcome them to our ‘Ohana and look forward to providing athletes and their supporters with an unforgettable experience.”
Regional representation sees Europe lead the way with 40% of athletes registered to race and North America with the second most, accounting for 35% of athletes. Asia and Latin America follow, each with over 8%, while Oceania adds 7% of the athlete field. Africa and the Middle East will make up 2% to complete the athlete field for the 2025 edition of the 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.
Additional stats on 2025 IRONMAN World Championship women’s race in Kona, Hawaii:
- 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 top five being the United States, Germany, Canada, Australia, the United Kingdom, and France
- 46 US states are accounted for, with top five states in athlete count being, California, Texas, Colorado, Florida, and Illinois
- Of the 15 registered athletes from Hawaii, 8 of those are from the Island of Hawaii
- 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 support the IRONMAN World Championship women’s race in Kailua-Kona
Beginning in the 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 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 spectators as they cross the Ali`i Drive finish line.
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 US 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 04:30 HST / 10:30 EDT / 16:30 CET.
