Mongolia Sunrise to Sunset

Edition history
Hatgal, Mongolia
13 Aug, 2025 (Wed)
Event size: 0 - 99 participants (Max 100 participants)

Trail running

42.195 km, 100 km

About the event

25th Mongolia Sunrise to Sunset ultra-trail: register now!

- Mongolia Sunrise to Sunset (MS2S), one of Asia’s oldest and most remote ultra-trail races, gears up for its 25th anniversary edition. The 2025 race will take place on August 13. Race week is from August 10-16.
- Early bird prices are available until December 31, 2024 on www.ms2s.org
- MS2S is one of the world’s most isolated events. The pristine Hovsgol National Park in Northern Mongolia provides for a stunning setting for the challenging 42km and 100km routes.
- Running for the environment: All proceeds are used to fund environmental projects in the National Park and to preserve the unique nomadic lifestyle and culture of its inhabitants.

Mongolia (November 11, 2024) – Mark your calendars: The 2025 edition of the spectacular Mongolia Sunrise to Sunset (MS2S) ultra-trail will take place on August 13, with race week from August 10-16. This will be the 25th edition of the traditional event that is widely considered to be among the world’s most beautiful ultra-trails. The first MS2S took place in 1999.

MS2S is a unique running adventure: Taking place in the breathtaking Hovsgol National Park in Northern Mongolia, the participants of the 42km and 100km ultra-distance pass through fairytale forests and windblown lowlands, climb craggy mountain passes and run along the lakeshore of mighty Lake Hovsgol. Mongolian horsemen serve as race marshals and help at the aid stations, herds of yaks watch the runners passing by.
Unlike other trail races, MS2S offers not just a unique run, but a week full of adventure and exploration: In the days before and after race day, the participants get in touch with the local nomadic population, sleep in traditional Mongolian Gers and tour the gorgeous wilderness on horseback.

Running for Mother Earth
All proceeds of the charity event are used to fund environmental projects in Hovsgol National Park, in cooperation with Global Nature Fund, as well as to preserve the unique nomadic lifestyle and culture of its population. MS2S race director Nicolas Musy: “Visiting the Hovsgol Lake area is like stepping into a different world. It is a paradise on earth. We work hard to keep the National Park as clean as it is, and to support the inhabitants so they can continue their unique way of life.”

The elevation gain in the marathon distance is more than 1,400 meters, in the 100km ultra run it is around 2,120 meters. Still, everybody with a strong spirit and good training can complete the race. The cut-off time – for both 42km and 100km – is 18 hours. MS2S is a member of the International Trail Running Association ITRA. MS2S is also a partner of the Asia Trail Master.
Register now!

The registrations for 2025 are open – early bird race week travel packages are available on www.ms2s.org. The race is limited to 100 participants.

Races offered by this event

You have 11 weeks to prepare


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News: Trail running

Read more
Press Release

22nd Mongolia Sunrise to Sunset set to take place on August 11, 2021

20 Nov, 2020 (Fri)

Credit : www.ms2s.org / Peter Troest The 22nd edition of the Mongolia Sunrise to Sunset (MS2S) charity ultra-trail run is planned for August 11, 2021. The race week will be from August 7-14.- Secure your spot and register now – pay once the race is fully confirmed in the spring of 2021. Registrations are open on www.ms2s.org!- MS2S, one of Asia’s first ultra-trail runs, offers an unforgettable running experience in the untouched Mongolian nature. All proceeds are used to fund environmental projects in Hovsgol National Park. Mongolia (November 17, 2020) – After the Mongolia Sunrise to Sunset (MS2S) 42km and 100km ultra trail run was cancelled in 2020 due to Covid-19, the organizers now plan a comeback of the traditional trail race: The 22nd edition of MS2S is set to take place on August 11, 2021. MS2S, a member of the International Trail Running Association ITRA, is more than just a spectacular ultra-trail run – the participants enjoy a full week in the Mongolian wilderness. The race week is scheduled from August 7-14. Registrations are already open on www.ms2s.org – runners and their friends and families can now register and secure their spot – the race is limited to 100 participants. Payments will be required only once the travel situation in Mongolia is back to normal and the event is 100% confirmed. Once in a lifetime experience MS2S, held annually since 1999, is a unique charity run in one of the most untouched and wild parts of Mother Earth. Mongolian horsemen serve as race marshals. Herds of yaks and wild horses watch the runners passing by. The majestic Lake Hovsgol provides for the perfect setting. The days before and after the race are as impressive as the race itself: The participants sleep in traditional Mongolian Gers in a picturesque camp at the lakeshore in the North of Mongolia, not far from the Siberian border. They get in touch with the nomadic population, explore the gorgeous area on horseback, and enjoy activities such as kayaking, fishing, hiking, mountain biking, and daily yoga sessions. - That is what running in Mongolia looks like – check out this MS2S video: https://youtu.be/0Q2xGV83-tI MS2S is widely considered to be one of the most beautiful trail runs on the planet, and the race course will not be changed in 2021: Lakeside trails, windblown lowlands, craggy mountain passes, mossy fairy-tale forests and meadows full of wildflowers. The accumulated elevation gain/loss in the marathon distance is more than 2.200 meters, in the 100km ultra run it is 3.375 meters. Still, everybody with a strong spirit and good training can complete the race. The cut-off time – for both 42km and 100km – is 18 hours. Run to protect the wilderness Race director Nicolas Musy: “MS2S offers a week of exploration and adventure – it is an eye-opening experience.” With the proceeds of the event, the organizers support charity initiatives in the National Park. “The Hovsgol Lake area is a paradise on earth. Our goal is to keep the National Park as clean as it is, and to support the inhabitants so they can continue their unique way of life – and be proud of it,” says Musy. Through the ecoLeap foundation, garbage trucks are bought, park rangers hired, eco-friendly garbage bags provided. The MS2S organizers also raise awareness about the importance of environmental protection trough TV ads and educational projects. For more information, please visit: www.ms2s.org and www.facebook.com/MongoliaSunriseToSunset, https://twitter.com/MS2S_Trail and https://www.instagram.com/ms2s_trail
2 min read
Press Release

Mongolia Sunrise to Sunset 2016: Reserve the date of the 3 august for the 18th edition of this international Trail !

25 Jan, 2016 (Mon)

Credit : www.ms2s.org / Khasar Sandag In the first week of August 2016, adventure seeking runners from all over the world will take part in the 18th Mongolia Sunrise to Sunset (MS2S) at the shores of Lake Hovsgol. *The registration period for this unique adventure 42km and 100km trail run, taking place on 3rd August 2016, is open on www.ms2s.org! Runners from 22 countries participated in the 2015 race, creating an exceptional experience. Mongolia (January 2016) – How deep blue can a lake be? And how many different shades of green do exist? Up to 100 runners from all over the world will find out in August 2016, when they gather at Lake Hovsgol in the wilderness of Northern Mongolia. Their quest: The 18th Mongolia Sunrise to Sunset (MS2S). The MS2S, a non-profit 42km and 100km ultra trail run, is without a doubt among the most beautiful runs of the world. Runners pass by wild horses and yaks, seas of wildflowers, the craggy mountains, windblown lowlands and of course the deep blue pearl of Mongolia, Lake Hovsgol. “The untouched nature is truly stunning. Our race offers spectacular views from start to finish – be it on the lakeside single trail when the sun rises behind Lake Hovsgol, on the impressive mountain passes or in the marshy, remote forests”, says Nicolas Musy, race director of the MS2S. The MS2S is not only beautiful but also challenging: The accumulated elevation gain/loss in the marathon distance is more than 2.200 meters, in the 100km ultra run it is more than 3.300 meters. Musy: “Still, everybody with a strong spirit and good training can complete the race. The cut-off time is 18 hours.” Early bird rates – The special offer is quit finished ! Runners with an appetite for a special adventure can now secure early bird rates for the race package online on www.ms2s.org. “This is not a one-day event. We offer a whole week full of discovery and adventure”, explains Musy. Participants gather in a picturesque camp at the lakeshore, sleep in traditional Mongolian yurts and get in touch with local nomads and their culture. In the days before and following the race, runners can enjoy a variety of leisure activities: horseback riding, fishing, kayaking, hiking, or mountain biking. The 2016 race week will take place from July 30th to August 6th 2016. To beneficiate of the special offer, register before march ! 2015: an international crowd In the 2015 race, runners from all over the world participated in the MS2S. Altogether, the organizers welcomed participants from no less than 22 countries. The young Mongolian runner Tumenbayar Shagdar was able to secure the win on 100km in a time of 11:54 hours. French Aurélia Veyre was the fastest ultra-lady in 15:16 hours. The 42km winners were the Mongolian Tugldur Tselmegsaikhan and the Canadian runner Jennifer Pasiciel. In the veteran 100km category, Swiss Marc Progin won in strong 15:36 hours. Credit : www.ms2s.org / Khasar Sandag Preserving the National Park The Mongolia Sunrise to Sunset is organised on a non-profit basis. All proceeds are used to keep Hovsgol National Park pristine and clean as well as to support the culture of the local nomads via the “ecoLeap foundation” registered in Geneva, Switzerland. “We want to keep this pristine mountain area as beautiful as it is now. That is why we fund a litter control project and its ongoing operation including hiring park rangers, providing eco-friendly garbage bags and raising awareness nation-wide through TV ads and education of local children and families”, explains race director Nicolas Musy. The ecoLeap foundation also supports the local culture, adds Musy: “It is not only the pristine nature that makes this part of the world so special. It is also the unique culture of the nomads and their way of life. The nomads should be proud of their abilities and culture.”
3 min read
Press Release

Mongolia Sunrise to Sunset 2016: Registrations for 18th edition are open!

06 Nov, 2015 (Fri)

Credit : www.ms2s.org / Khasar Sandag In the first week of August 2016, adventure-seeking runners from all over the world will take part in the 18th Mongolia Sunrise to Sunset (MS2S) at the shores of Lake Hovsgol. The registration period for this unique adventure 42km and 100km trail run, taking place on 3rd August 2016, is now open on www.ms2s.org! Runners from 22 countries participated in the 2015 race, creating an exceptional experience. All proceeds of the event go to environmental and cultural projects in Hovsgol National Park. Mongolia (6 November 2015) – How deep blue can a lake be? And how many different shades of green do exist? Up to 100 runners from all over the world will find out in August 2016, when they gather at Lake Hovsgol in the wilderness of Northern Mongolia. Their quest: The 18th Mongolia Sunrise to Sunset (MS2S). The MS2S, a non-profit 42km and 100km ultra trail run, is without a doubt among the most beautiful runs of the world. Runners pass by wild horses and yaks, seas of wildflowers, the craggy mountains, windblown lowlands and of course the deep blue pearl of Mongolia, Lake Hovsgol. “The untouched nature is truly stunning. Our race offers spectacular views from start to finish – be it on the lakeside single trail when the sun rises behind Lake Hovsgol, on the impressive mountain passes or in the marshy, remote forests”, says Nicolas Musy, race director of the MS2S. The MS2S is not only beautiful but also challenging: The accumulated elevation gain/loss in the marathon distance is more than 2.200 meters; in the 100km ultra run it is more than 3.300 meters. Musy: “Still, everybody with a strong spirit and good training can finish the race. The cut-off time is 18 hours.” Credit : www.ms2s.org / Khasar Sandag Early bird rates – register now! The registration period for next year’s race has already begun. Runners with an appetite for a special adventure can now secure early bird rates for the race package online on www.ms2s.org. “This is not a one-day event. We offer a whole week full of discovery and adventure”, explains Musy. Participants gather in a picturesque camp at the lakeshore, sleep in traditional Mongolian yurts and get in touch with local nomads and their culture. In the days before and following the race, runners can enjoy a variety of leisure activities: horseback riding, fishing, kayaking, hiking, or mountain biking. The 2016 race week will take place from July 30th to August 6th 2016. 2015: an international crowd In the 2015 race, runners from all over the world participated in the MS2S. Altogether, the organizers welcomed participants from no less than 22 countries. The young Mongolian runner Tumenbayar Shagdar was able to secure the win on 100km in a time of 11:54 hours. French Aurélia Veyre was the fastest ultra-lady in 15:16 hours. The 42km winners were the Mongolian Tugldur Tselmegsaikhan and the Canadian runner Jennifer Pasiciel. In the veteran 100km category, Swiss Marc Progin won in strong 15:36 hours. Preserving the National Park The Mongolia Sunrise to Sunset is organised on a non-profit basis. All proceeds are used to keep Hovsgol National Park pristine and clean as well as to support the culture of the local nomads via the “ecoLeap foundation” registered in Geneva, Switzerland. “We want to keep this pristine mountain area as beautiful as it is now. That is why we fund a litter control project and its ongoing operation including hiring park rangers, providing eco-friendly garbage bags and raising awareness nation-wide through TV ads and education of local children and families”, explains race director Nicolas Musy. The ecoLeap foundation also supports the local culture, adds Musy: “It is not only the pristine nature that makes this part of the world so special. It is also the unique culture of the nomads and their way of life. The nomads should be proud of their abilities and culture.” Credit : www.ms2s.org / Khasar Sandag
3 min read

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