The Ultra Trail Snowdonia is a premier trail running event that takes participants through the rugged and picturesque terrain of Snowdonia National Park. With several ultra-distance race options, including tough marathon and longer distances, this event offers a unique challenge for experienced trail runners. Participants will navigate steep ascents, rocky paths, and scenic mountain trails, all while experiencing some of the most stunning landscapes in the UK. The event draws elite athletes and passionate trail runners alike, making it an unforgettable test of endurance and strength.
Races
100 Mile
100km
55km
25km
Race Date:
16 May, 2025
The Ultra-Trail Snowdonia 100 Mile, held on May 16, 2025, challenges ultrarunners with a grueling 168km course and 9500m of elevation gain through the rugged terrain of Snowdonia, North Wales. Organized by UTMB, this race is renowned for its breathtaking scenery and technical trails, making it a must-do for experienced ultrarunners.
Weather based on historical averages.
FAQs
What is the Ultra-Trail Snowdonia 100 Mile?
How long is the Ultra-Trail Snowdonia 100 Mile?
Where does the Ultra-Trail Snowdonia 100 Mile take place?
What is the elevation gain of the Ultra-Trail Snowdonia 100 Mile?
How can I prepare for the Ultra-Trail Snowdonia 100 Mile?
How do I choose the right training plan for the Ultra-Trail Snowdonia 100 Mile?
The Ultra-Trail Snowdonia 100 Mile, held on May 16, 2025, challenges ultrarunners with a grueling 168km course and 9500m of elevation gain through the rugged terrain of Snowdonia, North Wales. Organized by UTMB, this race is renowned for its breathtaking scenery and technical trails, making it a must-do for experienced ultrarunners.
The Ultra-Trail Snowdonia 100 Mile is 161km long.
The Ultra-Trail Snowdonia 100 Mile takes place in Llanberis, Snowdonia National Park, Caernarfon, Wales, UK.
The Ultra-Trail Snowdonia 100 Mile elevation gain is 9500 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!
What is the Ultra-Trail Snowdonia 100 Mile?
The Ultra-Trail Snowdonia 100 Mile, held on May 16, 2025, challenges ultrarunners with a grueling 168km course and 9500m of elevation gain through the rugged terrain of Snowdonia, North Wales. Organized by UTMB, this race is renowned for its breathtaking scenery and technical trails, making it a must-do for experienced ultrarunners.
How long is the Ultra-Trail Snowdonia 100 Mile?
The Ultra-Trail Snowdonia 100 Mile is 161km long.
Where does the Ultra-Trail Snowdonia 100 Mile take place?
The Ultra-Trail Snowdonia 100 Mile takes place in Llanberis, Snowdonia National Park, Caernarfon, Wales, UK.
What is the elevation gain of the Ultra-Trail Snowdonia 100 Mile?
The Ultra-Trail Snowdonia 100 Mile elevation gain is 9500 metres, which Runna classifies as a Hilly race.
How can I prepare for the Ultra-Trail Snowdonia 100 Mile?
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!
How do I choose the right training plan for the Ultra-Trail Snowdonia 100 Mile?
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!
More
Sport:
Running
Tags:
UTMB
Altitude
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Ultra-Trail Snowdonia Eryri or Ultra-Trail du Mont-Blanc (UTMB). 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 Ultra-Trail Snowdonia Eryri website.
