Blummenfelt and Iden present their IRONMAN 2025 calendar

Kristian Blummenfelt y Gustav Iden They're back. The Norwegians, known for being two of the toughest and most charismatic athletes in the triathlon world, have shared how they're preparing for their return to the circuit. HOMBRE DE HIERRO with intense sessions that are already arousing curiosity in the world.
Back to the cold of Norway
After a demanding month in Nice, Kristian Blummenfelt y Gustav Iden They return to Bergen to continue their training in extreme conditions.
For them, training in the rain and cold is essential. According to Iden, the secret to their endurance lies in the fact that "when it rains and it's cold, you can't let up because you freeze. So, even if you're empty, you have no choice but to keep going."
The schedule to master the IRONMAN
The Norwegian duo has confirmed a powerful competition schedule for this season: after debuting in April at the IRONMAN 70.3 Oceanside, will participate in IRONMAN Texas, IRONMAN Aix-en-Provence, IRONMAN European Championship in Frankfurt, and its major objectives, the IRONMAN World Championship and the IRONMAN 70.3 World Cup from Marbella, Spain.
Iden, with three world titles (two in IRONMAN 70.3 and one in the full distance), admits he's still "a novice" at the full distance, having only completed two IRONMANs. "Texas will, I hope, be my third full IRONMAN," he says.
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This is how the toughest Norwegian triathletes train.
Blummenfelt explained how they organize their weeks to combine endurance and intensity:
- Monday: Day of rest.
- Tuesday: High intensity sessions in the pool and bike.
- Wednesday: Long training focused on endurance.
- Thursday: Key work with track series and pool speed, followed by light cycling.
- Friday: Recovery to face the weekend with strength.
A clear example of his toughness are the Tuesday series: 10-12 repetitions of 1 kilometer, followed by 10 series of 400 meters.
According to Blummenfelt, these sessions replicate the effort of race day, helping them perform when it matters most.
Is the Norwegian method making a comeback?
Blummenfelt, with his characteristic humor, stated in a recent video: “We work harder than the Americans, the Canadians, the French.
They train hard, but not hard enough." With this philosophy, they seek to regain their top position after a difficult 2024.
In addition, the Norwegian Casper Stornes It follows the method of Blummenfelt and Iden, moving from short distance to IRONMAN, another movement that confirms the growing influence of the Norwegian approach in long-distance triathlon.
Blummenfelt's ambitious goals
The duo's goal is clear and forceful. "The key is volume and intensity, combining them well to perform at their best," says Blummenfelt, who goes even further, declaring: "My goal is to win the IRONMAN World Championship in Nice, Paris-Roubaix, and the IRONMAN Pro Series. This is what I call a comeback season."
With such clear training and objectives, it's clear that the show is guaranteed.