The NUTS Karhunkierros Trail Ultra 2025 invites participants to experience the breathtaking beauty of Finland's wilderness through a range of challenging trail runs. The 13 km "Ruka’s Rapid Sauna Run" offers a compact yet exhilarating route through the hill landscapes of Ruka, making it ideal for both novices and experienced runners seeking a shorter distance. For those seeking more demanding courses, the event provides longer distances of 34 km, 55 km, 83 km, and the ultimate 166 km ultra challenge, which takes runners from Ruka to the Arctic Circle and back. Each route traverses the diverse and picturesque terrains of Oulanka National Park, promising an unforgettable trail running experience.
Race Date:
23 May, 2025
The NUTS Karhunkierros Ultra 166km, held on May 23, 2025, offers an extreme two-loop challenge with a total elevation gain of 4,780 meters through the rugged trails of Oulanka National Park. Organized by Northern Ultra Trail Service (NUTS), this event is a must for ultra-endurance athletes seeking a demanding and scenic adventure in Finland’s wilderness.
Race Date:
23 May, 2025
On May 23, 2025, the NUTS Karhunkierros Ultra 83km takes runners from Hautajärvi to Ruka along the renowned Karhunkierros trail, featuring a 2,794-meter elevation gain. Organized by Northern Ultra Trail Service (NUTS), this event provides a demanding yet scenic experience for trail enthusiasts.
Race Date:
23 May, 2025
The NUTS Karhunkierros Ultra 55km, happening on May 23, 2025, offers a mid-distance race from Oulanka Visitor Centre to Ruka, featuring an elevation gain of 1,890 meters. Organized by Northern Ultra Trail Service (NUTS), this event is perfect for those looking for a challenging and beautiful ultra-trail run.
Race Date:
24 May, 2025
The NUTS Karhunkierros 34km, scheduled for May 24, 2025, offers a scenic route through Oulanka National Park, with a 1,500-meter elevation gain. Organized by Northern Ultra Trail Service (NUTS), this race is suitable for intermediate runners seeking a technical trail experience.
Race Date:
24 May, 2025
The NUTS Karhunkierros 13km, held on May 24, 2025, provides an introductory trail run with a 900-meter elevation gain through Oulanka National Park. Northern Ultra Trail Service (NUTS) organizes this event to give runners of all levels a chance to explore Finland’s stunning trails.
Weather based on historical averages.
The NUTS Karhunkierros Ultra 166km, held on May 23, 2025, offers an extreme two-loop challenge with a total elevation gain of 4,780 meters through the rugged trails of Oulanka National Park. Organized by Northern Ultra Trail Service (NUTS), this event is a must for ultra-endurance athletes seeking a demanding and scenic adventure in Finland’s wilderness.
The NUTS Karhunkierros Ultra 166km is 166km long.
The NUTS Karhunkierros Ultra 166km takes place in Kuusamo, Finland.
The NUTS Karhunkierros Ultra 166km elevation gain is 3780 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros Ultra 166km, held on May 23, 2025, offers an extreme two-loop challenge with a total elevation gain of 4,780 meters through the rugged trails of Oulanka National Park. Organized by Northern Ultra Trail Service (NUTS), this event is a must for ultra-endurance athletes seeking a demanding and scenic adventure in Finland’s wilderness.
The NUTS Karhunkierros Ultra 166km is 166km long.
The NUTS Karhunkierros Ultra 166km takes place in Kuusamo, Finland.
The NUTS Karhunkierros Ultra 166km elevation gain is 3780 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On May 23, 2025, the NUTS Karhunkierros Ultra 83km takes runners from Hautajärvi to Ruka along the renowned Karhunkierros trail, featuring a 2,794-meter elevation gain. Organized by Northern Ultra Trail Service (NUTS), this event provides a demanding yet scenic experience for trail enthusiasts.
The NUTS Karhunkierros Ultra 83km is 83km long.
The NUTS Karhunkierros Ultra 83km takes place in Kuusamo, Finland.
The NUTS Karhunkierros Ultra 83km elevation gain is 1890 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
On May 23, 2025, the NUTS Karhunkierros Ultra 83km takes runners from Hautajärvi to Ruka along the renowned Karhunkierros trail, featuring a 2,794-meter elevation gain. Organized by Northern Ultra Trail Service (NUTS), this event provides a demanding yet scenic experience for trail enthusiasts.
The NUTS Karhunkierros Ultra 83km is 83km long.
The NUTS Karhunkierros Ultra 83km takes place in Kuusamo, Finland.
The NUTS Karhunkierros Ultra 83km elevation gain is 1890 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros Ultra 55km, happening on May 23, 2025, offers a mid-distance race from Oulanka Visitor Centre to Ruka, featuring an elevation gain of 1,890 meters. Organized by Northern Ultra Trail Service (NUTS), this event is perfect for those looking for a challenging and beautiful ultra-trail run.
The NUTS Karhunkierros Ultra 55km is 55km long.
The NUTS Karhunkierros Ultra 55km takes place in Kuusamo, Finland.
The NUTS Karhunkierros Ultra 55km elevation gain is 1500 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros Ultra 55km, happening on May 23, 2025, offers a mid-distance race from Oulanka Visitor Centre to Ruka, featuring an elevation gain of 1,890 meters. Organized by Northern Ultra Trail Service (NUTS), this event is perfect for those looking for a challenging and beautiful ultra-trail run.
The NUTS Karhunkierros Ultra 55km is 55km long.
The NUTS Karhunkierros Ultra 55km takes place in Kuusamo, Finland.
The NUTS Karhunkierros Ultra 55km elevation gain is 1500 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros 34km, scheduled for May 24, 2025, offers a scenic route through Oulanka National Park, with a 1,500-meter elevation gain. Organized by Northern Ultra Trail Service (NUTS), this race is suitable for intermediate runners seeking a technical trail experience.
The NUTS Karhunkierros 34km is 34km long.
The NUTS Karhunkierros 34km takes place in Kuusamo, Finland.
The NUTS Karhunkierros 34km elevation gain is 900 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros 34km, scheduled for May 24, 2025, offers a scenic route through Oulanka National Park, with a 1,500-meter elevation gain. Organized by Northern Ultra Trail Service (NUTS), this race is suitable for intermediate runners seeking a technical trail experience.
The NUTS Karhunkierros 34km is 34km long.
The NUTS Karhunkierros 34km takes place in Kuusamo, Finland.
The NUTS Karhunkierros 34km elevation gain is 900 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros 13km, held on May 24, 2025, provides an introductory trail run with a 900-meter elevation gain through Oulanka National Park. Northern Ultra Trail Service (NUTS) organizes this event to give runners of all levels a chance to explore Finland’s stunning trails.
The NUTS Karhunkierros 13km is 13km long.
The NUTS Karhunkierros 13km takes place in Kuusamo, Finland.
The NUTS Karhunkierros 13km elevation gain is 480 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The NUTS Karhunkierros 13km, held on May 24, 2025, provides an introductory trail run with a 900-meter elevation gain through Oulanka National Park. Northern Ultra Trail Service (NUTS) organizes this event to give runners of all levels a chance to explore Finland’s stunning trails.
The NUTS Karhunkierros 13km is 13km long.
The NUTS Karhunkierros 13km takes place in Kuusamo, Finland.
The NUTS Karhunkierros 13km elevation gain is 480 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by NUTS Karhunkierros or Northern Ultra Trail Service (NUTS). All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the NUTS Karhunkierros website.