Northern Ultra Trail Service

NUTS, or Northern Ultra Trail Service, is Finland's premier trail running brand, renowned for hosting the annual NUTS Karhunkierros event in the breathtaking Oulanka National Park. This premier trail running competition, taking place from May 22-23, 2026, features diverse race distances of 13 km, 34 km, 55 km, 83 km, and a challenging 166 km, catering to both novice runners and seasoned ultramarathoners. The event promises not just an athletic challenge, but an unforgettable experience amidst Finland's stunning natural landscapes.

In addition to the exhilarating races, NUTS is committed to supporting endurance athletes with high-quality gear and nutrition. Their official energy partner, Nosht, offers hydration solutions at aid stations to enhance competitor performance. The races are characterized by varied terrains, stunning views, and a sense of community, making it a highlight for athletes and spectators alike. Join NUTS this spring for an adventure that tests limits and celebrates the spirit of trail running! For more details, visit nuts.fi.