People are always complaining there’s not a comprehensive list of XC/endurance mountain bike races in Colorado and Wyoming… with so many promoters, it definitely can be hard and a lot of lists out there miss out on several big races and series (or ignore the awesomeness that is Wyoming mountain bike racing). So here it is, the one many try to copy and rarely succeed… the one and the only comprehensive race calendar, big and small races alike, Wyoming included!
I have began posting 2023 dates as they trickle in! I have left the 2022 calendar at the bottom for reference as well.
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If you know of an event I have missed, please comment below with details/website. This list is specifically for mountain bike events, please see my gravel calendar if the event is more that style. Thanks!
I pulled all these dates off the official event websites and communications with race directors. Please check official websites for any changes/cancellations – I will try to note when possible, but sometimes I cannot keep up. Also several races on this list are lottery-entry, or sell out pretty darn quickly, so always check websites for full registration details and processes.
Last updated 12/5/2022
2023 Dates
January 2023
- January 7, 2023 – Winterbike – Copper Mountain, CO (Fat Bike)
- January 21, 2023 – Leadville Winter Mountain Bike Series: Colorado Cup – Leadville, CO (Fat Bike)
- January 21, 2023 – Cottonwood Crusher – Buena Vista, CO (Fat Bike)
February 2023
- February 4, 2023 – Leadville Winter Mountain Bike Series: Tennessee Pass Night Jam – Leadville, CO (Fat Bike)
- February 9-11, 2023 – Wyoming Senior Olympics – Laramie, WY (Fat Bike)
- February 18, 2023- Frisco Freeze – Frisco, CO (Fat Bike)
March 2023
- March 4, 2023 – Leadville Winter Mountain Bike Series: Mineral Belt Mayhem – Leadville, CO (Fat Bike)
- March 10-12, 2023 – The Drift – Pinedale, WY (Fat Bike)
- March 18, 2023 – Leadville Winter Mountain Bike Series: Fatty Patty – Leadville, CO (Fat Bike)
April 2023
- April 1, 2023 – The Bear – Bear Creek Lake State Park, CO (XC)
- April 8, 2023- Leadville Winter Mountain Bike Series: East Side Epic – Leadville, CO (Fat Bike)
- April 23, 2023 – Royal Gorge Groove – Canon City, CO (XC/Endurance)
- April 29-30, 2023 – Fangdango – Bailey, CO (XC)
May 2023
- May 5-6, 2023 – 18 Hours of Fruita – Fruita, CO (Endurance)
- May 6, 2023 – Sarlacc Attack 50k – Fruita, CO (Endurance)
- May 13, 2023 – Royal Gorge Six & Twelve – Canon City, CO (Endurance)
- May 27-28, 2023 – Gunnison Growler – Gunnison, CO (XC/Endurance)
- May 29, 2023 – MGXC – Elbert, CO (XC)
June 2023
- June 7, 2023 – Mid Week Melee – Bear Creek Lake State Park, CO (XC)
- June 8-11, 2023 – GoPro Mountain Games – Vail, CO (XC)
- June 17, 2023 – The Hundo – Bailey, CO (Endurance)
- June 21, 2023 – Mid Week Melee – Bear Creek Lake State Park, CO (XC)
- June 21-25, 2023 – Junior Bike Week – Crested Butte, CO
July 2023
- July 4, 2023 – Firecracker 50 – Breckenridge, CO (Endurance)
- July 8, 2023 – Telluride 100 – Telluride, CO (Endurance)
- July 8-9, 2023 – Colorado State MTB Championships – Copper Mountain, CO (XC)
- July 8-9, 2023 – Big Mountain Enduro – Durango, CO (Enduro)
- July 9, 2023 – Silver Rush 50 – Leadville, CO (Endurance)
- July 28-30, 2023 – Leadville Stage Race – Leadville, CO (Endurance)
August 2023
- August 5, 2023 – Pierre’s Hole – Alta, WY (Endurance)
- August 12, 2023 – Leadville Trail 100 – Leadville, CO (Endurance)
- August 13-18, 2023 – Breck Epic – Breckenridge, CO (Endurance)
- August 26, 2023 – Lake City Alpine 50 – Lake City, CO (Endurance)
September 2023
- September 3, 2023 – Grand Traverse Mountain Bike – Aspen, CO (Endurance)
- September 21-24, 2023 – Pikes Peak Apex – Colorado Springs, CO (Endurance)
October 2023
- October 1, 2023 – Beti Bike Bash – Lakewood, CO (Women Only XC)
2022 Dates
January 2022
- January 9, 2022 – Bison Bicycle Co Fat Bike Race Series – Bondurant, WY (Fat Bike)
- January 13-16, 2022 – Aspen Fat Bike Race – Aspen, CO (Virtual Fat Bike)
- January 22, 2022 – Leadville Winter Mountain Bike Series: Colorado Cup – Leadville, CO (Fat Bike)
- January 23, 2022 – Snow Dawg – Laramie, WY (Fat Bike)
- January 29, 2022 – Cottonwood Crusher – Buena Vista, CO (Fat Bike)
- January 29, 2022 – Winterbike – Copper Mountain, CO (Fat Bike)
February 2022
- February 5, 2022 – Leadville Winter Mountain Bike Series: Tennessee Pass Night Jam – Leadville, CO (Fat Bike)
- February 12, 2022 – Bison Bicycle Co Fat Bike Race Series – Pinedale, WY (Fat Bike)
- February 16-18, 2022 – Wyoming Senior Olympics – Laramie, WY (Fat Bike)
- February 19, 2022 – Frisco Freeze – Frisco, CO (Fat Bike)
March 2022
- March 5, 2022 – Leadville Winter Mountain Bike Series: MBT Mayhem – Leadville, CO (Fat Bike)
- March 5, 2022 – Bison Bicycle Co Fat Bike Race Series – Bondurant ,WY (Fat Bike)
- March 5, 2022 – Chubby Chaser – Laramie, WY (Fat Bike)
- March 11-13, 2022 – The Drift – Pinedale, WY (Fat Bike)
- March 19, 2022 – Leadville Winter Mountain Bike Series: Fatty Patty – Leadville, CO (Fat Bike)
April 2022
- April 2, 2022 – The Bear – Bear Creek Lake State Park, CO (XC)
- April 9, 2022 – Leadville Winter Mountain Bike Series: East Side Epic – Leadville, CO (Fat Bike)
- April 10, 2022 – Royal Gorge Groove – Canon City, CO (XC/Endurance)
- April 16, 2022 – Salida 720 – Salida, CO (Endurance)
May 2022
- May 3, 2022 – Dirt Pile Race Series – Fort Collins, CO (Short track)
- May 6-7, 2022 – 18 Hours of Fruita – Fruita, CO (Endurance)
- May 7, 2022 – 12 Hours of Mesa Verde – Cortez, CO (Endurance)
- May 7, 2022 – Fangdango – Bailey, CO (XC)
- May 10, 2022 – Dirt Pile Race Series – Fort Collins, CO (Short track)
- May 14, 2022 – Sarlacc Attack 50k – Fruita, CO (Endurance)
- May 14, 2022 – Royal Gorge Six & Twelve – Canon City, CO (Endurance)
- May 17, 2022- Dirt Pile Race Series – Fort Collins, CO (Short track)
- May 18, 2022 – Mid Week Melee – Bear Creek Lake State Park, CO (XC)
- May 20-22, 2022 – Grand Junction Mountain Bike & Music Festival – Grand Junction, CO (XC/Endurance)
- May 21, 2022 – Buena Vista 720 – Buena Vista, CO (Endurance)
- May 23, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- May 24, 2022 – Dirt Pile Race Series – Fort Collins, CO (Short track)
- May 25, 2022 – Minturn Mini – Minturn, CO (Kids Only XC)
- May 28-29, 2022 – Gunnison Growler – Gunnison, CO (XC/Endurance)
- May 28-29, 2022 – Grand Enduro – Grand Junction, CO (Enduro)
- May 30, 2022 – Iron Horse Bicycle Classic Subaru MTB Race – Durango, CO (XC)
- May 30, 2022 – MGXC – Elbert, CO (XC)
- May 31, 2022 – Dirt Pile Race Series – Fort Collins, CO (Short track)
June 2022
- June 1, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – TBD, CO (XC)
- June 1, 2022 – Town Challenge MTB Series – Steamboat Springs, CO (XC)
- June 4, 2022 – ERock Sunrise to Sunset – Castle Rock, CO (Endurance)
- June 6, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- June 7, 2022 – Dirt Pile Race Series – Fort Collins, CO (Short track)
- June 8, 2022 – Summit Mountain Challenge: Frisco Roundup – Frisco, CO (XC)
- June 9-12, 2022 – GoPro Mountain Games – Vail, CO (XC)
- June 11, 2022 – Del Norte 720 – Del Norte, CO (Endurance)
- June 11, 2022 – Salida Big Friggin’ Loop – Salida, CO (Endurance)
- June 15, 2022 – Valmont Short Track Series – Boulder, CO (XC)
- June 18, 2022 – The Hundo – Bailey, CO (Endurance)
- June 16-22, 2022 – Junior Bike Week – Crested Butte, CO
- June 20, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- June 21, 2022 – Gem City Mountain Bike Series – Laramie, WY (XC)
- June 22, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – Vail, CO (XC)
- June 22, 2022 – Summit Mountain Challenge: Gold Run Rush – Breckenridge, CO (XC)
- June 22, 2022 – Town Challenge MTB Series – Steamboat Springs, CO (XC)
- June 22, 2022 – Valmont Short Track Series – Boulder, CO (XC)
- June 24, 2022 – Moonrise Summer Mountain Bike Series – Colorado Springs, CO (XC)
- June 25, 2022 – Bear Bait 8 – Casper, WY (Endurance)
- June 25, 2022 – Winter Park Classics: Point to Point – Winter Park, CO (XC)
- June 29, 2022 – Mid Week Melee – Bear Creek Lake State Park, CO (XC)
- June 29, 2022- Valmont Short Track Series – Boulder, CO (XC)
July 2022
- July 4, 2022 – Firecracker 50 – Breckenridge, CO (Endurance)
- July 6, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – Vail, CO (XC)
- July 10, 2022 – Silver Rush 50 – Leadville, CO (Endurance)
- July 11, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- July 12, 2022 – Gem City Mountain Bike Series – Laramie, WY (XC)
- July 13, 2022 – Summit Mountain Challenge: Pennsylvania Gulch Grind – Breckenridge, CO (XC)
- July 13, 2022 – Town Challenge MTB Series – Steamboat Springs, CO (XC)
- July 16-17, 2022 – Big Mountain Enduro – Durango, CO (Enduro)
- July 16, 2022 – Colorado State MTB Championships – Bailey, CO (XC)
- July 18, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- July 18-26, 2022 – USA Cycling Mountain Bike National Championships – Winter Park, CO (XC/DH/Enduro)
- July 20, 2022 – Highlands Ranch MTB Series – Highlands Ranch, CO (XC)
- July 20, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – Beaver Creek, CO (XC)
- July 23, 2022 – Winter Park Sunrise to Sunset – Winter Park, CO (Endurance)
- July 26, 2022- Gem City Mountain Bike Series – Laramie, WY (XC)
- July 27, 2022 – Highlands Ranch MTB Series – Highlands Ranch, CO (XC)
- July 27, 2022 – Summit Mountain Challenge: Copper Mountain Melee – Copper Mountain, CO (XC)
- July 27, 2022 – Town Challenge MTB Series – Steamboat Springs, CO (XC)
- July 29-31, 2022 – Leadville Stage Race – Leadville, CO (Endurance)
- July 29, 2022- Moonrise Summer Mountain Bike Series – Colorado Springs, CO (XC)
- July 30, 2022 – Telluride 100 – Telluride, CO (Endurance)
- July 30, 2022 – Laramie Range Epic (formerly the Laramie Enduro) – Laramie, WY (XC/Endurance)
- July 30, 2022- Winter Park Classics: Race Rendezvous – Winter Park, CO (XC)
August 2022
- August 1, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- August 3, 2022 – Highlands Ranch MTB Series – Highlands Ranch, CO (XC)
- August 3, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – Camp Hale, CO (XC)
- August 5-6, 2022 – Trestle Gravity Series – Winter Park, CO (Downhill)
- August 6, 2022 – Pierre’s Hole 50/100 – Alta, WY (Endurance & XC)
- August 6, 2022 – Emerald Mountain Epic (formerly the Steamboat Stinger)- Steamboat Springs, CO (Endurance)
- August 6, 2022 – Boggy Draw Beat Down – Dolores, CO (XC/Endurance)
- August 6, 2022 – New Castle Dirty Dozen – New Castle, CO (XC)
- August 6, 2022 – Snowmass 50 – Aspen, CO (Endurance)
- August 9, 2022 – Gem City Mountain Bike Series – Laramie, WY (XC)
- August 10, 2022 – Highlands Ranch MTB Series – Highlands Ranch, CO (XC)
- August 10, 2022 – Summit Mountain Challenge: Soda Creek Scramble – Keystone, CO (XC)
- August 10, 2022 – Town Challenge MTB Series – Steamboat Springs, CO (XC)
- August 13, 2022 – Leadville Trail 100 – Leadville, CO (Endurance)
- August 14-19, 2022 – Breck Epic – Breckenridge, CO (Endurance)
- August 15, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- August 17, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – Edwards, CO (XC)
- August 17, 2022 – Town Challenge MTB Series – Steamboat Springs, CO (XC)
- August 19, 2022 – Moonrise Summer Mountain Bike Series – Colorado Springs, CO (XC)
- August 20, 2022 – Monarch Mind Bender – Monarch Pass, CO (Endurance)
- August 26-27, 2022 – Vapor Trail 125 – Salida, CO (Endurance)
- August 27, 2022 – Lake City Alpine 50 – Lake City, CO (Endurance)
- August 27, 2022- Winter Park Classics: King of the Rockies – Winter Park, CO (XC)
- August 27-28, 2022 – Colorado High School MTB League Race #1 – Frisco, CO & Leadville, CO (High School XC)
- August 29, 2022 – Fat Fish Racing Series- Casper, WY (XC)
- August 31, 2022 – VRD Bloch & Chapleau Town Mountain Bike Race Series – Vail, CO (XC)
- August 31, 2022 – Summit Mountain Challenge: Peaks Time Trial – Breckenridge, CO (XC)
September 2022
- September 2-4, 2022 – Trestle Gravity Series – Winter Park, CO (Downhill)
- September 3, 2022 – Leadville Big Friggin’ Loop – Leadville, CO (Endurance)
- September 4, 2022 – Grand Traverse Mountain Bike – Aspen, CO (Endurance)
- September 10, 2022 – Summit Mountain Challenge: Fall Classic – Breckenridge, CO (XC)
- September 10, 2022 – Ring the Peak – Colorado Springs, CO (Endurance)
- September 10-11, 2022 – Colorado High School MTB League Race #2– Eagle, CO & Leadville, CO (High School XC)
- September 17-18, 2022 – Firebird 50k – Eagle, CO (Endurance)
- September 17, 2022 – Banana Belt Mountain Bike Race – Salida, CO (XC)
- September 17, 2022 – Gowdy Grinder – Curt Gowdy State Park, WY (XC) rescheduled from May 21st
- September 17, 2022 – Pain in the Aspen – Aspen, CO (Endurance)
- September 18, 2022 – Bearlodge Mountain Classic – Sundance, WY (XC)
- September 18, 2022 – Monarch Crest Crank – Salida, CO (Supported ride)
- September 22-25, 2022 – Pikes Peak Apex – Colorado Springs, CO (Endurance)
- September 23-25, 2022 – Silverton E-Everything Festival – Silverton, CO (E-Bike)
- September 24-25, 2022 – Colorado High School MTB League Race #3– Steamboat, CO & Snowmass, CO (High School XC)
October 2022
- October 1-2, 2022 – Monarch Crest Enduro – Salida, CO (Enduro)
- October 2, 2022 – Beti Bike Bash – Lakewood, CO (Women Only XC)
- October 8-9, 2022- Colorado High School MTB League Race #4– Nathrop, CO & Eagle, CO (High School XC)
- October 13-16, 2022 – USA Cycling Collegiate Mountain Bike National Championships – Durango, CO (XC/DH)
- October 15, 2022 – Royal 50 – Cañon City, CO (Endurance)
- October 22-23, 2022 – Colorado High School MTB League State Championships – Glenwood Springs, CO (High School XC)
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Heidi Rides Bikes 
Hi Heidi-
Would you please update the link for the Grinder to https://wyoxmtb.org/gowdygrinder.
Thanks
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Hi Heidi-
Would you please update the Gowdy Grinder link to https://wyoxmtb.org/gowdygrinder
Thanks.
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Thank you for letting me know the new link! I will get it updated
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Hi Heidi! Would you be able to put Mad Gravel on your site? http://www.madgravel.com
Hope you can come!
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Thank you! I have it added. This definitely would fill an empty spot in July… but I must admit, I’d hesitant to register for anymore races due to the current state of events involving the pandemic and canceled events!
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Hi Heidi my name is Rafael, I host the Salida Big Friggin’ Loop in the Colorado Endurance Series and is to be held on Saturday June 12th for 2021. The COES page is now updated.
Also new in the series for 2021: Leadville Big Friggin’ Loop! (LBFL) -Coming this September-
Thanks for helping spread the good word about all of these fun events!
Cheers!
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Thank you for updating me!
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Ridgeline Rampage sadly was canceled.
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Hi Heidi,
It appears that Ridgeline Rampage on May 1st is cancelled.
Website: https://www.warriorscycling.com/races/ridgeline-rampage/
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Hey Heidi,there’s also the “Pony Express” coming up down in Trinidad on May 8th.
Cheers!
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Thank you! It is on the gravel calendar.
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this is great! It is so hard to find the races in our area.
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Check out the Dirty Dozen MTB Race in New Castle, CO.
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Thanks I was not aware of that one!
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Your welcome info can be found at newcastletrails.com
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Hi Heidi, Leadville Big Friggin’ Loop is coming up September 18th as part of the Colorado endurance series. All pertinent info is here:
-Thanks,cheers!
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Hey there! Would you add Ride of the Ancients to your 2022 calendar? The new date this year is July, 9th.
https://www.rideoftheancients.com/
Thanks Heaps!
Ashley
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Thank you for letting me know the 2022 date, Ashley! I will get it added!
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Thanks Heidi for a comprehensive list. See you at the races
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Silver Rush – 15 mile in Leadville! https://www.leadvilleraceseries.com/silver-rush-15-mile-mtb/
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Thank you for sharing, I’ll watch for a 2022 date (it might be the same day as the 50 which is on the calendar?)
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Can you add the Boggy Draw Beat Down Mountain Bike Race? No specific date yet for 2022 but most likely August 6th. 4 levels of difficulty and based out of Dolores, CO. http://www.doloresrace.com/event.html
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I will get it added! Thank you for sharing!
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Can you add the New Castle Dirty Dozen MTB race on August 6, 2022 at 9AM? 20 miles and 3800′ of climbing in New Castle, CO. Race website is here: https://www.eventbrite.com/e/new-castle-rides-and-reggae-and-a-little-grass-festival-tickets-260989395307?aff=erelexpmlt
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Will get it added, thank you for sharing!
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Hi Heidi,2022 dates for Salida Big Friggin Loop: June 11th and Leadville Big Friggin Loop: Sept 3rd registration is now open on the Colorado Endurance Series website. Thank You! -Rafael
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Oh,and also the Guffey Huffer is coming May 7th!!! (Also in the COES). Cheers!
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Got all three events updated, thank you so much for sharing!
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Hi Heidi, our Royal 50 Mountain Bike Race (25 and 50 miles) will be held on Saturday, October 15th this year. http://www.royal50.com
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I got it added, thank you for the update!
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Heidi! I’m hosting a CES event in Aspen on September 17th. Will you put it on your calendar? Thanks for keeping the list!
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Got it added, thank you!
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Breck Epic has dates and early bird registration posted.
August 13-18 2023
https://breckepic.com/
Can. Not. Wait!
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Hi Heidi,
The Sarlacc Attack 50K Mountain Bike Race in Fruita, CO was moved from the 13th to May 6, 2023. Please review & update, thanks!
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I got it updated! Thank you for letting me know!
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