The Ultra-Trail Kosciuszko by UTMB® is a world-class trail running event set against the stunning backdrop of Australia’s Snowy Mountains. Taking place from 27–29 November 2025, the event offers four distinct race distances—161 km (KosciMiler), 106.5 km (Kosci100), 50 km (Kosci50), and 32 km (Kosci30)—catering to elite athletes and passionate trail runners alike. Each course winds through alpine meadows, snow gum forests, and rugged terrain, showcasing the natural beauty of Kosciuszko National Park. All races culminate in the scenic village of Thredbo, providing a festive atmosphere and rewarding finish. As part of the prestigious UTMB World Series, the event combines technical challenge with awe-inspiring landscapes for an unforgettable racing experience.
Races
161 km
106.5 km
50 km
32 km
Race Date:
28 November, 2025
The KosciMiler is a 161 km ultra-endurance trail race within the Ultra-Trail Kosciuszko by UTMB®, featuring 5,000 meters of elevation gain across the challenging alpine terrain of New South Wales' Snowy Mountains. The next edition takes place on 28 November 2025, with runners finishing in the iconic mountain village of Thredbo, Australia.
Race Date:
28 November, 2025
The Kosci100 is a 106.5 km ultra-distance trail race that’s part of the Ultra-Trail Kosciuszko by UTMB®, challenging runners with 3,030 meters of elevation gain through the rugged alpine landscapes of New South Wales. The next race takes place on 28 November 2025, finishing in the mountain village of Thredbo, Australia.
Race Date:
27 November, 2025
The Kosci50 is a 50 km mountain trail race within the Ultra-Trail Kosciuszko by UTMB®, featuring 1,300 meters of elevation gain through the stunning alpine terrain of New South Wales’ Snowy Mountains. The next edition will be held on 27 November 2025, with the race finishing in the scenic village of Thredbo, Australia.
Race Date:
27 November, 2025
The Kosci30 is a 32 km trail race that forms part of the Ultra-Trail Kosciuszko by UTMB®, offering a scenic and approachable alpine challenge through the Snowy Mountains of New South Wales. The next edition takes place on 27 November 2025, with the race finishing in the picturesque village of Thredbo, Australia.
Weather based on historical averages.
FAQs
What is the Ultra-Trail Kosciuszko by UTMB KosciMiler?
How long is the Ultra-Trail Kosciuszko by UTMB KosciMiler?
Where does the Ultra-Trail Kosciuszko by UTMB KosciMiler take place?
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB KosciMiler?
How can I prepare for the Ultra-Trail Kosciuszko by UTMB KosciMiler?
How do I choose the right training plan for the Ultra-Trail Kosciuszko by UTMB KosciMiler?
The KosciMiler is a 161 km ultra-endurance trail race within the Ultra-Trail Kosciuszko by UTMB®, featuring 5,000 meters of elevation gain across the challenging alpine terrain of New South Wales' Snowy Mountains. The next edition takes place on 28 November 2025, with runners finishing in the iconic mountain village of Thredbo, Australia.
The Ultra-Trail Kosciuszko by UTMB KosciMiler is 161km long.
The Ultra-Trail Kosciuszko by UTMB KosciMiler takes place in Snowy Mountains, Kosciuszko National Park.
The Ultra-Trail Kosciuszko by UTMB KosciMiler elevation gain is 5000 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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 Kosciuszko by UTMB KosciMiler?
The KosciMiler is a 161 km ultra-endurance trail race within the Ultra-Trail Kosciuszko by UTMB®, featuring 5,000 meters of elevation gain across the challenging alpine terrain of New South Wales' Snowy Mountains. The next edition takes place on 28 November 2025, with runners finishing in the iconic mountain village of Thredbo, Australia.
How long is the Ultra-Trail Kosciuszko by UTMB KosciMiler?
The Ultra-Trail Kosciuszko by UTMB KosciMiler is 161km long.
Where does the Ultra-Trail Kosciuszko by UTMB KosciMiler take place?
The Ultra-Trail Kosciuszko by UTMB KosciMiler takes place in Snowy Mountains, Kosciuszko National Park.
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB KosciMiler?
The Ultra-Trail Kosciuszko by UTMB KosciMiler elevation gain is 5000 meters, which Runna classifies as a Hilly race.
How can I prepare for the Ultra-Trail Kosciuszko by UTMB KosciMiler?
The best way to train for the next race is to use a personalized 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 Kosciuszko by UTMB KosciMiler?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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 Kosciuszko by UTMB Kosci100?
How long is the Ultra-Trail Kosciuszko by UTMB Kosci100?
Where does the Ultra-Trail Kosciuszko by UTMB Kosci100 take place?
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB Kosci100?
How can I prepare for the Ultra-Trail Kosciuszko by UTMB Kosci100?
How do I choose the right training plan for the Ultra-Trail Kosciuszko by UTMB Kosci100?
The Kosci100 is a 106.5 km ultra-distance trail race that’s part of the Ultra-Trail Kosciuszko by UTMB®, challenging runners with 3,030 meters of elevation gain through the rugged alpine landscapes of New South Wales. The next race takes place on 28 November 2025, finishing in the mountain village of Thredbo, Australia.
The Ultra-Trail Kosciuszko by UTMB Kosci100 is 106km long.
The Ultra-Trail Kosciuszko by UTMB Kosci100 takes place in Snowy Mountains, Kosciuszko National Park.
The Ultra-Trail Kosciuszko by UTMB Kosci100 elevation gain is 3030 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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 Kosciuszko by UTMB Kosci100?
The Kosci100 is a 106.5 km ultra-distance trail race that’s part of the Ultra-Trail Kosciuszko by UTMB®, challenging runners with 3,030 meters of elevation gain through the rugged alpine landscapes of New South Wales. The next race takes place on 28 November 2025, finishing in the mountain village of Thredbo, Australia.
How long is the Ultra-Trail Kosciuszko by UTMB Kosci100?
The Ultra-Trail Kosciuszko by UTMB Kosci100 is 106km long.
Where does the Ultra-Trail Kosciuszko by UTMB Kosci100 take place?
The Ultra-Trail Kosciuszko by UTMB Kosci100 takes place in Snowy Mountains, Kosciuszko National Park.
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB Kosci100?
The Ultra-Trail Kosciuszko by UTMB Kosci100 elevation gain is 3030 meters, which Runna classifies as a Hilly race.
How can I prepare for the Ultra-Trail Kosciuszko by UTMB Kosci100?
The best way to train for the next race is to use a personalized 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 Kosciuszko by UTMB Kosci100?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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 Kosciuszko by UTMB Kosci50?
How long is the Ultra-Trail Kosciuszko by UTMB Kosci50?
Where does the Ultra-Trail Kosciuszko by UTMB Kosci50 take place?
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB Kosci50?
How can I prepare for the Ultra-Trail Kosciuszko by UTMB Kosci50?
How do I choose the right training plan for the Ultra-Trail Kosciuszko by UTMB Kosci50?
The Kosci50 is a 50 km mountain trail race within the Ultra-Trail Kosciuszko by UTMB®, featuring 1,300 meters of elevation gain through the stunning alpine terrain of New South Wales’ Snowy Mountains. The next edition will be held on 27 November 2025, with the race finishing in the scenic village of Thredbo, Australia.
The Ultra-Trail Kosciuszko by UTMB Kosci50 is 50km long.
The Ultra-Trail Kosciuszko by UTMB Kosci50 takes place in Snowy Mountains, Kosciuszko National Park.
The Ultra-Trail Kosciuszko by UTMB Kosci50 elevation gain is 1300 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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 Kosciuszko by UTMB Kosci50?
The Kosci50 is a 50 km mountain trail race within the Ultra-Trail Kosciuszko by UTMB®, featuring 1,300 meters of elevation gain through the stunning alpine terrain of New South Wales’ Snowy Mountains. The next edition will be held on 27 November 2025, with the race finishing in the scenic village of Thredbo, Australia.
How long is the Ultra-Trail Kosciuszko by UTMB Kosci50?
The Ultra-Trail Kosciuszko by UTMB Kosci50 is 50km long.
Where does the Ultra-Trail Kosciuszko by UTMB Kosci50 take place?
The Ultra-Trail Kosciuszko by UTMB Kosci50 takes place in Snowy Mountains, Kosciuszko National Park.
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB Kosci50?
The Ultra-Trail Kosciuszko by UTMB Kosci50 elevation gain is 1300 meters, which Runna classifies as a Hilly race.
How can I prepare for the Ultra-Trail Kosciuszko by UTMB Kosci50?
The best way to train for the next race is to use a personalized 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 Kosciuszko by UTMB Kosci50?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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 Kosciuszko by UTMB Kosci30?
How long is the Ultra-Trail Kosciuszko by UTMB Kosci30?
Where does the Ultra-Trail Kosciuszko by UTMB Kosci30 take place?
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB Kosci30?
How can I prepare for the Ultra-Trail Kosciuszko by UTMB Kosci30?
How do I choose the right training plan for the Ultra-Trail Kosciuszko by UTMB Kosci30?
The Kosci30 is a 32 km trail race that forms part of the Ultra-Trail Kosciuszko by UTMB®, offering a scenic and approachable alpine challenge through the Snowy Mountains of New South Wales. The next edition takes place on 27 November 2025, with the race finishing in the picturesque village of Thredbo, Australia.
The Ultra-Trail Kosciuszko by UTMB Kosci30 is 32km long.
The Ultra-Trail Kosciuszko by UTMB Kosci30 takes place in Snowy Mountains, Kosciuszko National Park.
The Ultra-Trail Kosciuszko by UTMB Kosci30 elevation gain is 610 meters, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalized 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 personalized 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 Kosciuszko by UTMB Kosci30?
The Kosci30 is a 32 km trail race that forms part of the Ultra-Trail Kosciuszko by UTMB®, offering a scenic and approachable alpine challenge through the Snowy Mountains of New South Wales. The next edition takes place on 27 November 2025, with the race finishing in the picturesque village of Thredbo, Australia.
How long is the Ultra-Trail Kosciuszko by UTMB Kosci30?
The Ultra-Trail Kosciuszko by UTMB Kosci30 is 32km long.
Where does the Ultra-Trail Kosciuszko by UTMB Kosci30 take place?
The Ultra-Trail Kosciuszko by UTMB Kosci30 takes place in Snowy Mountains, Kosciuszko National Park.
What is the elevation gain of the Ultra-Trail Kosciuszko by UTMB Kosci30?
The Ultra-Trail Kosciuszko by UTMB Kosci30 elevation gain is 610 meters, which Runna classifies as a Moderate race.
How can I prepare for the Ultra-Trail Kosciuszko by UTMB Kosci30?
The best way to train for the next race is to use a personalized 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 Kosciuszko by UTMB Kosci30?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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:
Nature
UTMB
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Ultra-Trail Kosciuszko by UTMB or IRONMAN Group. 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 Kosciuszko by UTMB website.
