What an Incredible Week in Mora – The Future of Measurable Skiing Is Here!

What a week in Mora — the future of cross-country skiing has arrived!

The response to Skisens, our ski power meter, and our digital ski coach demonstrated at the Vasaloppet Fair has been absolutely fantastic. It has been amazing to showcase our product and exchange ideas, insights, and questions with so many passionate skiers and enthusiasts. We are already looking forward to returning in 2025!

Challenging weather — strong performances

Even though the snow conditions were good, the week brought major challenges for both athletes and organizers. The first and last days were marked by rain, but — as always — nothing can stop Vasaloppet skiers. We witnessed many strong and inspiring performances throughout the week.

Skisens power meter used in multiple races

The Skisens power meter was used in several races, from Vasaloppet 30 on Friday, February 23, all the way to the main Vasaloppet on Sunday, March 3. This gave us incredibly exciting measurement data and new insights into the conditions and challenges skiers faced. One highlight was of course Halvvasan, where our power meter was used by both Viggo Möller and race runner-up Karl-Johan Westberg.

Elite power data: Karl-Johan Westberg’s performance

When Karl-Johan finished second in Halvvasan, he delivered an average power output of 295 watts over 1 hour and 43 minutes. Our calculations also show that this corresponded to a friction coefficient of 0.018, approximately the same as “2” wheels on roller skis. For more information on how we calculate friction and power, see earlier posts such as https://skisens.se/2020/03/09/skisens-summering-av-vasaloppsveckan-2020/.

Performance in the main Vasaloppet

Karl-Johan also raced the main Vasaloppet on Sunday, March 3. Despite much heavier snow conditions, he delivered another strong performance, finishing in 59th place with a time of 4:19. Although he did not use the Skisens power meter in this race, our data from other skiers indicates that friction was around 0.03 ± 0.003. This suggests that Karl-Johan likely had about 10% lower average power across the full Vasaloppet compared to Halvvasan — a reasonable assumption given the significantly longer work duration.

Nearly 200 contestants guessed the winning power outputs

Speaking of power in Vasaloppet, we naturally transition to our prediction competition where nearly 200 of you guessed the average power output of the male and female winners. It is impressive how accurately so many of you estimated what it actually takes to win Vasaloppet.

Based on our best calculations using data from skiers equipped with Skisens power meters — combined with measured threshold power from several participating athletes — we estimate that women’s champion Emilie Fleten delivered an average power of 180 watts, while men’s champion Tor-Leif Syrstad delivered 275 watts.

And the winners of our prediction competition are…

A total of six participants guessed the women’s winner’s average power correctly, and one person nailed the men’s winner. The overall winner of the competition was the participant who estimated the women’s result exactly and missed the men’s result by only 5 watts.

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