13 Female Athletes Take Titles in Their Age Group at the 2025 IRONMAN World Championship in Kona, Hawai`i

October 12, 2025

- Samantha Skold from Anchorage, Alaska, earns top honors as Overall Age Group World Champion - Natalie Grabow, 80, of Mountain Lakes, New Jersey becomes the oldest women to finish the IRONMAN World Championship

KONA, Hawai`i / TAMPA, Fla. (Oct. 12, 2025) /ENDURANCE SPORTSWIRE/ – The best female triathletes in the world from 13 age groups claimed their respective titles at the 2025 IRONMAN<sup>®</sup> World Championship triathlon in Kona, Hawai`i on Saturday, October 11. More than 1,600 registered athletes from 78 countries, regions and territories swam 2.4 miles, biked 112 miles, and ran 26.2 miles, in triathlon’s pinnacle event of triathlon.

The overall Age-Group World Champion crown went to Anchorage, Alaska’s Samantha Skold racing in the W30-34 category and finishing in a blistering time of 9:34:59. The United States had the most Age-Group World Champions with three, earning titles in the W30-34, W50-54, and W75-79. The youngest Age Group World Champion was Hannah Rossler from Vienna, Austria competing in the W18-24 and posting a 9:56:04 finish time. On the other end of the spectrum was Natalie Grabow from Mountain Lakes, New Jersey, who opened the F80-84 category and became the oldest women to ever finish the IRONMAN World Championship at 80 years young with an incredible time of 16:45:26, and breaking 2025 IRONMAN Hall of Fame inductee Cherie Gruenfeld’s previous record of 78 years old.

Below are the World Champions for each age group.

The 2025 IRONMAN World Championship triathlon kicked off on Sunday, October 11 in the waters of Kailua Bay, as athletes tackled 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 saw athletes take on the 26.2-mile (42.2km) HOKA Run Course. The out-and-back course took athletes past the spirited crowds on Ali`i Drive, up Palani Road to the Queen Ka`ahumanu Highway, and to the infamous HOST Park at the National Energy Laboratory Hawai`i Authority (NELHA). Athletes completed their journey to the roar of thousands of spectators as they crossed the historic Ali`i Drive finish line.

Further coverage of the IRONMAN World Championship in Kona, France, is available on the IRONMAN YouTube channel and @IRONMANTri social channels.

Full results can be found at www.ironman.com/im-world-championship-kona-results. For more information about the 2025 IRONMAN World Championship in Kaulia-Kona, Hawai`i, please visit www.ironman.com/races/im-world-championship-kona. For more information on the IRONMAN and IRONMAN 70.3 brands and global event series, visit www.ironman.com. Media inquiries may be directed to press@ironman.com.

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About the IRONMAN World Championship

On February 18, 1978, 15 competitors came to the shores of Waikiki, Hawai`i to take on the first-ever IRONMAN<sup>®</sup> triathlon. It was an idea hatched by John Collins, a Naval Officer stationed in Hawai`i, and his wife Judy during a swim club gathering. Collins’ proposal was a friendly test of fitness combining the three toughest endurance races on Oahu into one race: The 2.4-mile Waikiki Rough-water Swim, the 112-mile Around-Oahu Bike Race, followed by a 26.2-mile run on the Honolulu Marathon course. That first race would set the stage for what IRONMAN triathlon would become: the most-challenging single-day sporting event in the world, and a brand symbolizing the belief that “ANYTHING IS POSSIBLE^®.” Since its inception in 1978 on the Island of O`ahu and continued history in Kona on the Island of Hawai`i with recent stops in St. George, Utah and Nice, France, the IRONMAN World Championship^® triathlon has etched its name in history through historic performances, inspiring athletes, and a lifetime of memories that define the sport of triathlon today. The IRONMAN World Championship remains the most iconic single-day endurance sporting event in the world and is the culmination of 40 global IRONMAN events with over 94,000 athletes around the world striving for one of the coveted qualifying slots of any sporting event in the world. For more information, visit www.ironman.com/races/im-world-championship.

About The IRONMAN Group

The IRONMAN Group is the world’s largest operator of participation sports with a portfolio of brands, events, media, partners, merchandise, and digital platforms operating in over 50 countries worldwide. A global portfolio consisting of hundreds of events includes the IRONMAN^® Triathlon Series, the IRONMAN^® 70.3^® Triathlon Series, 5150^® Triathlon Series, IRONKIDS^®, premier running events including the Rock ‘n’ Roll^® Running Series, the Standard Chartered Singapore Marathon™ and City2Surf^®, the UTMB® World Series of trail running, the Epic Series™ of mountain biking including the Absa Cape Epic^®, and a collection of road cycling and other multisport races. Since the inception of the iconic IRONMAN^® brand and its first event in 1978, millions of athletes have proven that ANYTHING IS POSSIBLE^® by crossing finish lines around the world. From its beginnings as a single race among friends in Hawai’i, The IRONMAN Group has become a global sensation and collection of high-growth lifestyle brands that inspire people to unlock their potential in life. For more information, visit www.ironman.com/about/ironman-group.

Images of the 2025 Age Group IRONMAN World Champions and a race B-Roll package are available below

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B-Roll