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2025 IRONMAN 70.3 World Championship by the numbers

2025 IRONMAN 70.3 World Championship banner

The 2025 Precision Fuel & Hydration IRONMAN 70.3 World Championship event is set to take place in Marbella, Spain, on November 8-9, 2025, bringing together many of the world’s best age-group and professional triathletes.

IRONMAN notes that the event, which also serves as the deciding race of the 2025 IRONMAN Pro Series, features a diverse field of more than 6,300 athletes from 114 different countries, regions, and territories.

By the numbers

  • Approximately 120 professionals are set to compete alongside the age-group athletes.
  • The competition is split across two days, with women racing on Saturday and men on Sunday.
  • Women competing: over 2,600 women will take part on Saturday, November 8.
  • Men competing: more than 3,600 men will go head-to-head on Sunday, November 9.
  • Average age: the average age of registered athletes is 42.
  • Youngest female athlete: Nicole Chau, 18, from Hong Kong.
  • Youngest male athlete: Albert Fernandez, 18, from Tuxtla Gutiérrez, Mexico.
  • Oldest female athlete: Dexter Yeats, 80, from Hayden Lake, Idaho, USA.
  • Oldest male athlete: Helmut Schicketanz, 83, from Kleinmachnow, Germany.
  • Birthday on race day: 20 athletes (4 women, 16 men) have their birthday on their respective race day.

A total of 114 countries, territories and regions will be represented at the event. The split by region is:

  • Europe: 39% of athletes.
  • North America: 29% of athletes.
  • Latin America: 18% of the field.
  • Asia: Over 5% of the field.
  • Oceania: Over 5% of the field.
  • Africa and Middle East: 2% of the field.

The United States of America is the most represented nation, followed by a strong showing from Europe and the rest of the international community.

Rank Nation Number of athletes
1 United States of America 1,484
2 Germany 450
3 France 441
4 United Kingdom 414
5 Canada 355
6 Brazil 331
7 Australia 251

 
Athletes are flying into the south of Spain from all corners of the globe including Armenia, Bolivia, Kenya, Iceland, Madagascar, Oman, and Vietnam to race at the 2025 Precision Fuel & Hydration IRONMAN 70.3 World Championship.

49 US states will be represented (only North Dakota will not be represented) with the top five being California (185), Colorado (104), Texas (99), Florida (89), and Washington (71).

12 returning age-group champions from the 2024 IRONMAN 70.3 World Championship in Taupō, New Zealand. This year’s field includes high-profile age-group athletes and returning champions, such as:

  • Ryan Briscoe (Australia/USA) – Former professional IndyCar driver.
  • Reyes Estévez López (Spain) – Three-time Olympic 1500m runner, racing in his third triathlon season.
  • Greg Van Avermaet (Belgium) – Olympic Gold medallist in road cycling (2016), competing in his second season of triathlon.

This will be the first time that the IRONMAN 70.3 World Championship will be held in Spain, and the fourth time it will be hosted in Europe, with the other locations being Zell am See-Kaprun, Austria (2015), Nice, France (2019), and Lahti, Finland (2023).

www.ironman.com