
Siebrig Scheeres

International Mountain Leader
I’m originally from the Netherlands and after studying Physical Therapy in Belgium, I moved for three years to Guatemala. I volunteered in a project for children with disabilities. In my spare time, I climb volcanoes and enjoy taking part in triathlons. In Nicaragua I ran my first 100 km ultra trail and straight away I fell in love with trail running!
In 2013, I moved to Switzerland and I finished my International Mountain Leader course here. For most of that time, I lived right in the middle of the Alps, in the mountain village of Saas Fee. I spent my time outside in the mountain trail running, alpine climbing, nordic skiing and lots more!
I recently moved with my dog to Stalden, a small village between the Saas Fee and Zermatt Valleys in the Valais canton, where I run my own physical therapy clinic.
I like technical races like Scotland’s Glen Coe race, Tromsö in Norway, and Trofeo Kima in Italy. But, I also run long distance races like the Mont Blanc Marathon 90 km and the 125 km race in the Canary Islands, Transgrancanaria.
I love spending time in the mountains and love to inspire others to do the same; whether it is to improve your running skills, showing you new areas, or just get inspired by the beautiful nature around us!

Siebrig Scheeres at Kreuzboden in the Saas Valley, Switzerland (Photo: Siebrig Scheeres).

Running above Saas-Fee. (Photo: Siebrig Scheeres)

How Run the Alps’ Guides Spend the Winter

Our guides share what they’re doing this winter—and they’re each up to interesting adventures to share next season on the trails with our guests.
Run the Alps Film Festival 2025

The 2025 edition of the Run the Alps film festival, in partnership with On, is a celebration of trail running in the Alps.
Patagonia Black Hole Duffel

A few years ago, we started looking for the perfect bag for our clients to move their belongings from inn to inn, when they’re trail running the Tour du Mont-Blanc. This is it!