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One of the oldest long-distance races in the world, this Dutch event features a flat and fast course that’s perfect for setting personal bests. With a swim in the Weerwater, a bike leg through polders, and a vibrant city-center finish, it's a European triathlon staple.

"The 2025 IRONMAN World Championship men’s race in Nice, France invites you to test your mettle in one of Europe’s most iconic and breathtaking destinations. The sparkling Mediterranean, the rugged terrain of the Alpes-Maritimes, and the vibrant energy of the Côte d'Azur all set the stage for a race that combines the beauty of the French Riviera with the grit and challenge of triathlon’s toughest competition. Prepare for a thrilling journey where every moment will leave you in awe. "

This Italian gem offers an exciting coastal race with a Mediterranean swim, a bike course that includes thrilling climbs in the Ligurian hills, and a run along the Riviera’s picturesque promenade.

One of the toughest IRONMAN races on the circuit, Wales is known for its rugged bike course with relentless climbs and a marathon through the medieval town of Tenby, where passionate fans create an unforgettable race-day atmosphere.

A full-distance challenge in the scenic city of Chattanooga, this race features a downriver swim, a rolling countryside bike course, and a beautiful, energy-packed run through the downtown riverfront.

A new addition to the Challenge Family series, this French event features a beautiful Atlantic swim, a bike course with coastal and countryside scenery, and a festive town-center finish.

Step onto sacred ground at the 2025 IRONMAN World Championship in Kona, where legendary women will etch their names into triathlon history. Feel the spirit of champions past as you face the ultimate 140.6-mile/ 226km test of willpower and endurance. Swim in the turquoise waters of Kailua Bay, bike across the raw, volcanic landscapes of the Queen Kaʻahumanu Highway, and run under the radiant Hawaiian sun toward the finish line on Ali’i Drive. The historic KONA® race is an unforgettable journey in the heart of triathlon's birthplace. Kona awaits. Will you answer the call?

This second Mallorca event under the Challenge brand delivers another incredible island experience. With warm waters, stunning bike routes, and a scenic beachfront run, this race is a favorite among European triathletes.

A fast and dynamic race on the Catalan coast, Challenge Barcelona boasts a beachside swim, a lightning-fast bike leg, and a vibrant run course along the famous boardwalk.

The world’s best 70.3 athletes come together for this championship showdown. With a rotating host city, the 2025 edition promises a world-class venue, a challenging course, and a global field of competitors.

A late-season classic in Tempe, Arizona, this race features a smooth lake swim, a flat and fast desert bike course, and a well-supported urban run. Perfect for those looking to close out the year with a PR.