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Here we go 2026!
Events

Rattler Racing partners with Velocity Ventures to host select 2026 events

January 5th, 2026 

It’s a new year, and Colorado is gearing up for another exciting race season. With the launch of the new local association—the Colorado Bicycle Racing Association—we’re thrilled to see an event calendar taking shape with fewer conflicts and many high-quality race weekends.

As part of our new adventures for 2026, Rattler Racing will be transitioning select events to Velocity Ventures to support race promotion and event management. We are honored to ‘hand off” these iconic Colorado events for 2026 and beyond, and we look forward to watching the strong legacy live on. We are not going anywhere and will very much continue to be involved in the racing community. And we will definitely see you at The Bear!

The following former Rattler Racing events will be managed by Velocity Ventures In 2026: 

Our Next Event
Mad Gravel
September 5, 2026
Three unique course options are sure to bring you epic roads, punchy climbs, quick descents, wide open spaces, and will take you back to remote and beautiful country in and around Elbert County. Starting from Peaceful Valley Boy Scout Ranch south of Kiowa, Colorado, riders will be challenged for sure, but still enjoy the amazing views and high peaks of the Colorado front range.
Thunder Valley Short Track Series
June 9, 2026
Join us for MWM at Bear Creek Lake Park in Morrison, Colorado. All weeknight races will be at the Coyote Crossing Pavilion. You will be treated to an amazing race scene, exciting atmosphere, professional timing, super fun terrain, a volunteer group that is second to none, and of course, support from our sponsors. This is seriously a good time for the whole family.
Fangdango
May 2, 2026
Fangdango sets in the hills just west of Castle Rock. Thanks to the fine folks at the MAC and the town of Castle Rock, the course features some of the old classics at the Phillip Miller Activity Complex. Only a short drive from the Denver Metro area, and very easy to get to, expect plenty of climbing, tricky technical descents, and fast flowy single-track. The spectating on this course is amazing and you the views are excellent.
The Bear MTB Race Colorado
The Bear
April 4, 2026
Rattler Racing is excited to be hosting one of Colorado’s original XC races. The Bear is Back! Come join us for a classic front range mountain bike race. The approximate 10 mile loop will have plenty of tough short climbs, killer single track, quick descents and plenty of meandering through Bear Creek Lake Park to keep things interesting. This is the perfect way to test your legs after a long season of training.
Sunrise to Sunset
May 30, 2026
To be in a position to carry the legacy of an iconic Colorado race is super exciting for us. Sunrise to Sunset is a classic event that has been around for a long time. Still at Phillip Miller Park in Castle Rock, this course and venue are perfect for 12 hours of mountain bike racing. Bring your friends, teams and BBQ and spend the day with bikes, food, beer and comradery.
Wild West
November 5, 2026
The Colorado State Cyclocross championship will be at a favorite venue, the Jefferson County Fairgrounds! Come race CX on December 6. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain and a volunteer group that is second to none.
Couch to Cross
September 9, 2026
In an effort to keep with tradition of Fall weeknight CX racing, we are working with JeffCo Fairgrounds to bring that same vibe. Come race Couch to Cross on September 3. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain and a volunteer group that is second to none.
Events
The Bear MTB Race Colorado
The Bear
April 4, 2026
Rattler Racing is excited to be hosting one of Colorado’s original XC races. The Bear is Back! Come join us for a classic front range mountain bike race. The approximate 10 mile loop will have plenty of tough short climbs, killer single track, quick descents and plenty of meandering through Bear Creek Lake Park to keep things interesting. This is the perfect way to test your legs after a long season of training.
Fangdango
May 2, 2026
Fangdango sets in the hills just west of Castle Rock. Thanks to the fine folks at the MAC and the town of Castle Rock, the course features some of the old classics at the Phillip Miller Activity Complex. Only a short drive from the Denver Metro area, and very easy to get to, expect plenty of climbing, tricky technical descents, and fast flowy single-track. The spectating on this course is amazing and you the views are excellent.
Sunrise to Sunset
May 30, 2026
To be in a position to carry the legacy of an iconic Colorado race is super exciting for us. Sunrise to Sunset is a classic event that has been around for a long time. Still at Phillip Miller Park in Castle Rock, this course and venue are perfect for 12 hours of mountain bike racing. Bring your friends, teams and BBQ and spend the day with bikes, food, beer and comradery.
Thunder Valley Short Track Series
June 9, 2026
Join us for MWM at Bear Creek Lake Park in Morrison, Colorado. All weeknight races will be at the Coyote Crossing Pavilion. You will be treated to an amazing race scene, exciting atmosphere, professional timing, super fun terrain, a volunteer group that is second to none, and of course, support from our sponsors. This is seriously a good time for the whole family.
Mad Gravel
September 5, 2026
Three unique course options are sure to bring you epic roads, punchy climbs, quick descents, wide open spaces, and will take you back to remote and beautiful country in and around Elbert County. Starting from Peaceful Valley Boy Scout Ranch south of Kiowa, Colorado, riders will be challenged for sure, but still enjoy the amazing views and high peaks of the Colorado front range.
Couch to Cross
September 9, 2026
In an effort to keep with tradition of Fall weeknight CX racing, we are working with JeffCo Fairgrounds to bring that same vibe. Come race Couch to Cross on September 3. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain and a volunteer group that is second to none.
Wild West
November 5, 2026
The Colorado State Cyclocross championship will be at a favorite venue, the Jefferson County Fairgrounds! Come race CX on December 6. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain and a volunteer group that is second to none.
Couch to Cross
September 9, 2026
In an effort to keep with tradition of Fall weeknight CX racing, we are working with JeffCo Fairgrounds to bring that same vibe. Come race Couch to Cross on September 3. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain and a volunteer group that is second to none.
Wild West
November 5, 2026
The Colorado State Cyclocross championship will be at a favorite venue, the Jefferson County Fairgrounds! Come race CX on December 6. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain and a volunteer group that is second to none.
Mad Gravel
September 5, 2026
Three unique course options are sure to bring you epic roads, punchy climbs, quick descents, wide open spaces, and will take you back to remote and beautiful country in and around Elbert County. Starting from Peaceful Valley Boy Scout Ranch south of Kiowa, Colorado, riders will be challenged for sure, but still enjoy the amazing views and high peaks of the Colorado front range.
The Bear MTB Race Colorado
The Bear
April 4, 2026
Rattler Racing is excited to be hosting one of Colorado’s original XC races. The Bear is Back! Come join us for a classic front range mountain bike race. The approximate 10 mile loop will have plenty of tough short climbs, killer single track, quick descents and plenty of meandering through Bear Creek Lake Park to keep things interesting. This is the perfect way to test your legs after a long season of training.
Fangdango
May 2, 2026
Fangdango sets in the hills just west of Castle Rock. Thanks to the fine folks at the MAC and the town of Castle Rock, the course features some of the old classics at the Phillip Miller Activity Complex. Only a short drive from the Denver Metro area, and very easy to get to, expect plenty of climbing, tricky technical descents, and fast flowy single-track. The spectating on this course is amazing and you the views are excellent.
Sunrise to Sunset
May 30, 2026
To be in a position to carry the legacy of an iconic Colorado race is super exciting for us. Sunrise to Sunset is a classic event that has been around for a long time. Still at Phillip Miller Park in Castle Rock, this course and venue are perfect for 12 hours of mountain bike racing. Bring your friends, teams and BBQ and spend the day with bikes, food, beer and comradery.
Thunder Valley Short Track Series
June 9, 2026
Join us for MWM at Bear Creek Lake Park in Morrison, Colorado. All weeknight races will be at the Coyote Crossing Pavilion. You will be treated to an amazing race scene, exciting atmosphere, professional timing, super fun terrain, a volunteer group that is second to none, and of course, support from our sponsors. This is seriously a good time for the whole family.
2022 All Rattler Racing Events
Past Events

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