In the golden glow of Colorado’s autumn, the Crested Butte Ultra 2026 will once again test trail runners on September 26. This high-altitude event offers 35K, 55K, and 50-mile courses that climb from around 8,800 feet to peaks topping 11,000 feet. Participants traverse wildflower meadows, aspen forests, and rocky ridgelines — every turn revealing a new view of the Gunnison National Forest. Designed for endurance and adventure, the race blends technical singletrack with sweeping descents and open alpine stretches. It’s an unforgettable challenge for those drawn to the raw beauty and thin air of Crested Butte’s backcountry.
Races
The 50 Mile race on September 26, 2026, organized by Mad Moose Events in Crested Butte, Colorado, is a true mountain ultra. Starting at 8,822 ft and peaking at 11,291 ft, it features around 8,301 feet of elevation gain and loss through the vast Gunnison National Forest.
Also on September 26, 2026, the 55K takes place under Mad Moose Events in Crested Butte, Colorado. It challenges runners with approximately 4,567 feet of elevation gain and loss, spanning from 8,822 ft up to 11,290 ft and back.
On September 26, 2026, the 35K at the Crested Butte Ultra is hosted by Mad Moose Events in the rugged terrain of Crested Butte, Colorado. With about 2,280 feet of elevation gain and loss, this route begins at 8,822 ft and climbs to 9,988 ft through high-alpine meadows and ridgelines.
Weather based on historical averages.
FAQs
What is the Crested Butte Ultra 50 Mile?
How long is the Crested Butte Ultra 50 Mile?
Where does the Crested Butte Ultra 50 Mile take place?
What is the elevation gain of the Crested Butte Ultra 50 Mile?
How can I prepare for the Crested Butte Ultra 50 Mile?
How do I choose the right training plan for the Crested Butte Ultra 50 Mile?
The 50 Mile race on September 26, 2026, organized by Mad Moose Events in Crested Butte, Colorado, is a true mountain ultra. Starting at 8,822 ft and peaking at 11,291 ft, it features around 8,301 feet of elevation gain and loss through the vast Gunnison National Forest.
The Crested Butte Ultra 50 Mile is 80km long.
The Crested Butte Ultra 50 Mile takes place in Crested Butte, CO, USA.
The Crested Butte Ultra 50 Mile elevation gain is 2530 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 Crested Butte Ultra 50 Mile?
The 50 Mile race on September 26, 2026, organized by Mad Moose Events in Crested Butte, Colorado, is a true mountain ultra. Starting at 8,822 ft and peaking at 11,291 ft, it features around 8,301 feet of elevation gain and loss through the vast Gunnison National Forest.
How long is the Crested Butte Ultra 50 Mile?
The Crested Butte Ultra 50 Mile is 80km long.
Where does the Crested Butte Ultra 50 Mile take place?
The Crested Butte Ultra 50 Mile takes place in Crested Butte, CO, USA.
What is the elevation gain of the Crested Butte Ultra 50 Mile?
The Crested Butte Ultra 50 Mile elevation gain is 2530 meters, which Runna classifies as a Hilly race.
How can I prepare for the Crested Butte Ultra 50 Mile?
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 Crested Butte Ultra 50 Mile?
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 Crested Butte Ultra 55km?
How long is the Crested Butte Ultra 55km?
Where does the Crested Butte Ultra 55km take place?
What is the elevation gain of the Crested Butte Ultra 55km?
How can I prepare for the Crested Butte Ultra 55km?
How do I choose the right training plan for the Crested Butte Ultra 55km?
Also on September 26, 2026, the 55K takes place under Mad Moose Events in Crested Butte, Colorado. It challenges runners with approximately 4,567 feet of elevation gain and loss, spanning from 8,822 ft up to 11,290 ft and back.
The Crested Butte Ultra 55km is 55km long.
The Crested Butte Ultra 55km takes place in Crested Butte, CO, USA.
The Crested Butte Ultra 55km elevation gain is 1392 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 Crested Butte Ultra 55km?
Also on September 26, 2026, the 55K takes place under Mad Moose Events in Crested Butte, Colorado. It challenges runners with approximately 4,567 feet of elevation gain and loss, spanning from 8,822 ft up to 11,290 ft and back.
How long is the Crested Butte Ultra 55km?
The Crested Butte Ultra 55km is 55km long.
Where does the Crested Butte Ultra 55km take place?
The Crested Butte Ultra 55km takes place in Crested Butte, CO, USA.
What is the elevation gain of the Crested Butte Ultra 55km?
The Crested Butte Ultra 55km elevation gain is 1392 meters, which Runna classifies as a Hilly race.
How can I prepare for the Crested Butte Ultra 55km?
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 Crested Butte Ultra 55km?
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 Crested Butte Ultra 35km?
How long is the Crested Butte Ultra 35km?
Where does the Crested Butte Ultra 35km take place?
What is the elevation gain of the Crested Butte Ultra 35km?
How can I prepare for the Crested Butte Ultra 35km?
How do I choose the right training plan for the Crested Butte Ultra 35km?
On September 26, 2026, the 35K at the Crested Butte Ultra is hosted by Mad Moose Events in the rugged terrain of Crested Butte, Colorado. With about 2,280 feet of elevation gain and loss, this route begins at 8,822 ft and climbs to 9,988 ft through high-alpine meadows and ridgelines.
The Crested Butte Ultra 35km is 35km long.
The Crested Butte Ultra 35km takes place in Crested Butte, CO, USA.
The Crested Butte Ultra 35km elevation gain is 695 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 Crested Butte Ultra 35km?
On September 26, 2026, the 35K at the Crested Butte Ultra is hosted by Mad Moose Events in the rugged terrain of Crested Butte, Colorado. With about 2,280 feet of elevation gain and loss, this route begins at 8,822 ft and climbs to 9,988 ft through high-alpine meadows and ridgelines.
How long is the Crested Butte Ultra 35km?
The Crested Butte Ultra 35km is 35km long.
Where does the Crested Butte Ultra 35km take place?
The Crested Butte Ultra 35km takes place in Crested Butte, CO, USA.
What is the elevation gain of the Crested Butte Ultra 35km?
The Crested Butte Ultra 35km elevation gain is 695 meters, which Runna classifies as a Hilly race.
How can I prepare for the Crested Butte Ultra 35km?
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 Crested Butte Ultra 35km?
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!
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This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Crested Butte Ultra or Mad Moose Events. 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 Crested Butte Ultra website.