Triathlon superstar Kristian Blummenfelt is “taking control” of his DIY IRONMAN training regime for the first time

Kristian Blummenfelt has lifted the lid on his brand new do-it-yourself training programme as he gears up to go all-in on the IRONMAN Pro Series in 2025.

Blummenfelt has spent the last three weeks working on his fitness in Nice, where he is training with fellow Norwegians Gustav Iden and Casper Stornes.

And the trio have come up with their own routine as they prepare for their first race of the season – the Ironman 70.3 at Oceanside, California on April 5.

The team announced last year that while still in consultation with long-time coach Olav Aleksander Bu, the training camps and day-to-day responsibilities lie with the athletes now that Bu’s primary focus is with pro cycling team Uno-X Mobility.

“Making it all ourselves”

In a YouTube video posted on Monday and embedded below, Blummenfelt said: “For the first time we are taking control of the training programme and making it all ourselves. Our first big race will be Oceanside. And we all managed to do the final registration yesterday.”

Blummenfelt planned to spend one month training in Nice before heading back to his hometown of Bergen, so he has around a week left on the French Riviera.

He said: “Training has been going pretty well. First five weeks in Bergen and now this is my third week here in France. It’s been good. As planned, I would say. Missing a little bit on the race pace side. But that’s for later.

“Already it feels like the threshold power on the bike, particularly in the hills, is above 400. Yesterday I did seven times ten minutes with a minute’s rest and I was most of the time riding around 400 watts.

“Ramp up the speed”

“The run maybe closer to 3:07 [min/km] in non-carbon at threshold now and the swim quite steady at 1:14 per hundred [metres]. Now I need to take down the volume a little bit and ramp up the speed in the water a little bit.”

It’s no surprise Blummenfelt has chosen Nice as his base as the 2025 IRONMAN World Championship will be held there and he is training on much of the course.

And the 30-year-old will be looking to do much better than his disappointing 35th place finish in last year’s event in Hawaii, where he was among the favourites until projectile vomiting during the bike leg.