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Triathlon rival accepts superstar Kristian Blummenfelt’s challenge with cheeky Insta message

Superstar 'Big Blu' put on the spot by rival and fans as he promotes a next-gen AI coaching tool called Max
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Kristian Blummenfelt threw down the gauntlet online – and Cameron Wurf couldn’t resist picking it up!

The pair are numbers one and two in the current standings for the IRONMAN Pro Series heading into 70.3 Swansea this weekend, with Big Blu leading the way.

And when the Norwegian took to Instagram this week to promote a next-gen AI coaching tool called Max, it prompted a tongue-in-cheek response from his Aussie rival.

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“True potential”

Blu posted: “I believe that it hurts more to lose. To me, it means never quitting on your true potential. So today, I’m going all in – and I invite you to join me. The Champion’s Challenge starts now!

“I set my goal to win The Ironman World Championships in Nice – and I’m challenging YOU to set your biggest goal for 2025.

“Whether you’re aiming for a podium, a personal best, or just becoming your healthiest self—this is your moment.”

Kristian Blummenfelt wins IRONMAN Frankfurt 2025
Kristian Blummenfelt wins IRONMAN Frankfurt 2025 [Photo credit: IRONMAN]

In a video accompanying the post he asked viewers what their big goal for the year was – and quick as a flash, Wurf responded: “Win the Ironman World Championship in Nice😎”

Wurf is unlikely to be Blummenfelt’s biggest challenger for that title as the former World Tour INEOS Grenadiers cyclist has yet to get on the podium this season, though he did qualify for the IRONMAN World Championships last time out.

Pay the price

And when the two raced each other at IRONMAN Texas in April, Wurf put in the fastest bike split EVER, only to pay the price by finishing 15 minutes behind eventual winner Blu in eighth.

Challenge Barcelona 2023 - Photo Credit: Jose Luis Hourcade
Cameron Wurf [Photo credit: Jose Luis Horcade]

But Wurf has the chance to leapfrog the Norwegian in the Pro Series standings this weekend as he is competing in Swansea while Blu is only just back in training after his epic win last week at IRONMAN Frankfurt, where Wurf came ninth.

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“Sell-out”

Blummenfelt also got himself in hot water with some fans for his post, with one accusing him of being a “sell-out” for his support for AI, claiming such tools could put real coaches out of work.

That got short shrift from the @gomaxiom Insta account Blu was promoting, which responded with a post saying: “We really do understand the concern – and we want to be crystal clear: we’re not out to replace human coaches. In fact, we employ them.

Kristian Blummenfelt IRONMAN Texas Fans 2025
Kristian Blummenfelt wins IRONMAN Texas 2025 in spectacular fashion (Photo – Getty Images for IRONMAN).

“Real people are training our next-gen AI, and Max is designed to complement human insight, never to replace it. Humans are irreplaceable.

“We work to empower coaches to use another great tool to help their athletes feel and perform better – because AI can sometimes see things a human cannot and that helps the coach do better work. We believe the future is human and AI – together.”

Paul Brown
Written by
Paul Brown
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