Since 1999: A Legendary Race Through Mongolia’s Eternal Landscapes
Mongolia Sunrise to Sunset is an annual 42km and 100km ultra trail run that has been taking place since 1999.
The 2026 race week is from August 9-15, with the race day on August 12th.
Get ready for a breathtaking and isolated event that is regularly featured among the world’s most beautiful races!
One of the World’s Most Beautiful Races
2026 Race Details
Running for Mother Nature
More than a race: 100% of proceeds support our NGOs ecoLeap Foundation and Ecodevshilt, protecting Lake Hovsgol National Park year-round. The area is a paradise on earth – our aim is to keep it clean and to support the inhabitants in their unique way of life.
Environmental education & sustainable tourism: We empower local communities to safeguard their environment.
Waste reduction & recycling: Our team has removed over 207 tons of solid waste from the park.
Partnerships and Accreditations
Mongolia Sunrise to Sunset is a proud partner of the Asia Trail Master.
Completing the MS2S 100km race qualifies for 4 points in the new scale for the Ultra-Trail du Mont-Blanc®!
MS2S is also a proud member of ITRA.