Registration opens up to the public on Monday, January 18, at Noon MST and due to COVID safety protocol we may be forced to cap the field at a smaller number. Because of this we anticipate spots will fill quickly, so take advantage of early/discounted pricing and get signed up today!

NEW! Ursa Major Bear Chase Point Series

NEW FOR 2021 – Sign up for all 4 of the Bear Chase Race Series events on the North Fork page at a discount off of individual event pricing! ($450 for all 4 events – Look for the “SERIES – $450” option on the North Fork registration button.)

Ursa Major is a series points contest based on distance (longer races receiving more points). You can run any distance you’d like at the 4 events (sans Chase the Moon; solo option only).
• Special long sleeve tee just for Ursa Major runners (on top of the swag for individual races)
• Priority entry status for North Fork 50 (which will reach capacity/waitlist)
• Laser-etched growler for Ursa Major runners who complete 50K or longer at North Fork, Chase the Moon & Bear Chase
BONUS: Free Half/10K entry at The Bear Chase for ultra runners who want to run on both Saturday & Sunday (more miles = more points in the series)

Click here to sign up for URSA MAJOR!

Bear Chase Race Series

Bear Chase Race Series

April 24, 2021 – Rock Hawk
June 5, 2021 – North Fork
July 23, 2021 – Chase the Moon
September 25-26, 2021 – Bear Chase

The Bear Chase Trail Race

The Bear Chase Race Endurance Festival is a 100k, 50 mile, 50k, Half Marathon and the Baby Bear 10k Trail Race at beautiful Bear Creek Lake Park, in Lakewood, CO. An excellent race for first time ultramarathoners and trail runners, runners will experience a variety of challenging terrain and sweeping panoramic views throughout the race. The course is pretty fast (by trail/ultra standards), and not overly technical. 95% of the race course is on dirt and single track trails. Approximate elevation gain: Baby Bear 10km = 230 ft. Half Marathon = 900 ft. 50km = 1,930 ft. 50 Mile = 3,400 ft. 100km = 4,250 ft. Proceeds of the race benefit the open spaces and trails of Lakewood, and our partner charities. Voted Best Trail Race in Competitor Magazine’s “Best Of” runner poll, 2010-2016.


September 24, 2022 (Saturday)
50 miles
3 feet
Solo Hilly Trail
September 24, 2022 (Saturday)
100 kilometers
4 feet
Solo Hilly Trail
September 24, 2022 (Saturday)
10 kilometers
230 feet
Solo Flat Trail
1/2 Marathon
September 24, 2022 (Saturday)
21.1 kilometers
900 feet
Solo Flat Trail
September 24, 2022 (Saturday)
50 kilometers
1 feet
Solo Hilly Trail
The information about this event is based on data from the official website or may be provided by the organiser. Before booking flights or accommodation check the event's website and social media. If this listing is not up-to-date, please let us know at [email protected]


From Around the web

The perfect trail race for beginner runners in Colorado

The Bear Chase Race | 17 Jul 2019 15:33




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