Bicycle Colorado

Glassier/Buckhorn MTB Race
2026-05-20 18:00 - 20:00 (America/Denver) | Aspen, CO, Aspen, Colorado
All racers start near Hook’s Spur Trailhead and take a left onto the Glassier Open Space trail. Riders will proceed to the Glassier Bike/Hike Trail (course marshals will open and close the trail gate) and climb to the top. Then:
Long course (Men’s A, Women’s A, Men’s B):
From the top of Glassier, continue climbing up Vasten and follow the entire Vasten trail clockwise. Go left on Buckhorn Traverse, descend Buckhorn, then turn right on the Rio Grande Bike Path. Ride 500 meters on the path until it meets up with Hooks Spur Road, merge onto Hooks Spur, and continue to the start/finish area. Course distance: approx. 14 miles.
Short Course (All other categories):
At the top of Glassier, turn right onto Buckhorn Traverse. Riders will follow the Buckhorn Traverse until a right turn onto Lower Buckhorn, which they will descend to the Rio Grande bike path. They will ride the Rio Grande for 500 meters until the path meets up with Hooks Spur Road, at which point riders will take a slight left onto Hooks Spur and proceed to the start/finish area. Course distance: approx. 10 miles.

Iron Horse Bicycle Classic
2026-05-22 08:00 - 2026-05-24 17:00 | Durango, CO
The Iron Horse Bicycle Classic is THE big race! Gear up or just watch as bikers race the train from Durango to Silverton all day. Events include the most popular race, the McDonald’s Citizen Tour, which winds through 50 miles of beautiful Colorado scenery, La Strada La Plata Gravel and the Durango Mesa Cycling Festival.
Since 1971, this iconic event has tested man vs. machine, as bicyclists race on the beautiful Million Dollar Highway. Can you make it in time to enjoy the beautiful ride back downhill?

Spring Dirt Pile Short Track at New Belgium Brewing
2026-05-26 16:00 - 20:00, 2026-06-02 16:00 - 20:00, 2026-06-09 16:00 - 20:00, 2026-06-16 16:00 - 20:00 | New Belgium Brewing, 500 Linden St., Fort Collins, 80524, United States
SPRING DIRT PILE SHORT TRACK MOUNTAIN BIKE RACE SERIES
SIX RACES: MAY 12, 19, 26 JUNE 2, 9, 16
Online registration ONLY (opens Wed. for the following week)
HOSTED BY: SendTown Bike Club, a local 501(c)(3) nonprofit, and our Community Partners, courtesy of New Belgium Brewing in Fort Collins.
We’re stoked to welcome you and your family to some fun evenings of racing! With strider through adult categories, there’s no other event like this Tuesday night tradition in Northern Colorado.
Fun courses for all are on tap, along with a food truck, beer garden, volunteer opportunities, end of series prizes from our Partners, and more!
The races are also our largest fundraiser, supporting our mission: Cultivating a lifelong passion for cycling through adventure and community. Please consider an additional donation!
See the website to subscribe to our email newsletter, view the FAQ, and more details.

Session Series
2026-05-27, 2026-06-03, 2026-06-17 | CO
Fast, techy, and raw, the Session Series aims to please. Riders compete for the quickest time down some of the best trails on the Front Range on Wednesday nights.
May 27, June 3, June 17, 2026
Registration opens March 25th
Is it an Enduro? Downhill? Downduro? Whateva – it’s a heck of a good time.
– Virginia Canyon – Drop Shaft
– Maryland Mountain – Hard Money
– Floyd Hill – The Sluice

Register Here
View Event Website

Valmont Short Track Series
2026-05-27, 2026-06-03, 2026-06-10, 2026-06-17, 2026-06-24 | Valmont Bike Park, 3160 Airport Rd, Boulder, CO, 80301, United States
Fun low-key grassroots mountain bike races open to the public. Held every Wednesday evening in May and June. The course changes every week, but is typically a 1-mile lap and most races are 4-5 laps, or about 25 minutes. The races are broken into several categories to choose from. Register at the venue on race day.

Summit Mountain Challenge
2026-05-27 17:00 - 21:00, 2026-06-10 17:00 - 21:00, 2026-06-24 17:00 - 21:00 | Breckenridge, CO, Breckenridge, Colorado
The Summit Mountain Challenge Mountain Bike Series was acquired from the legendary Jeff Wescott (Westy) of Maverick Sports Promotions in 2021. Breckenridge Recreation continues to aspire to Westy’s goal: to create community through fun, affordable, well-organized athletic events. Racers must participate in 5 of 6 of the same courses (long, short, kids) to be eligible for the series overall winner.

Frisco Round Up 5/27
Tour De French Gulch 6/10
Peaks Trail Time Trial 6/24
Aspen Attack 7/22
Swan River Rampage 8/5
Summit Classic 8/15

PLEASE NOTE: In the event of inclement weather or unforeseen trail conditions, the race director reserves the right to delay, cancel or reschedule the race. There are no refunds in the event of a race cancellation or change.
Register For The Series Here
View Event Website

Sunrise to Sunset
2026-05-30 | Phillip Miller Activity Complex, 1375 W Plum Creek Pkwy, Castle Rock, C, 80109, United States
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 camaraderie.

View Event Website

Family Mountain Bike Day at Ruby Hill Bike Park
2026-05-30 10:00 - 14:00 | Ruby Hill Bike Park, West Jewell Avenue, Denver, CO, 80223
Join us for Lucky Bikes Family Mountain Biking Day featuring youth mountain bike skills courses, bike-themed games, and beginner trail rides. We’ll have snacks, refreshments, and fun for all ages. Bring your friends and family for a great time in one of our beloved local parks.
This is a free event (Donations encouraged) hosted by Lucky Bikes at Ruby Hill Park — 1200 W Florida Ave, Denver, CO 80223 (entrance to bike park is on the opposite side of the park on Jewell Ave.)
– One-hour beginner trail rides will leave at approximately 10:30 AM and 12:30 AM
– Skills course and bike games will be available all day long (10 AM – 2 PM).
– All experience levels and ages are welcome.
– If you don’t have a bike, don’t worry. You can use ours! The smallest bike we have is 20″.
– Our skilled instructors and volunteers will provide bike and helmet fittings, skills instruction, and lead the rides.
– Please R.S.V.P. so we can plan accordingly. Each family member should have their own ticket.

Butterhack MTB Race and Mini MTB
2026-06-03 18:00 - 20:00 | Aspen, CO, Aspen, Colorado
Start Times:
Wave 1: 6:00pm – Short Course – All categories except Men’s A, B, Women’s A
Wave 2: 6:30pm – Long Course – Men’s A
Wave 3: 6:35pm – Long Course – Women’s A, Men’s B
Long Course: 4 laps
Short Course: 2 laps

GoPro Mountain Games
2026-06-04 - 2026-06-07 | Vail, CO, Vail, United States
Set in the heart of the Rockies, the GoPro Mountain Games return to Vail, June 4-7, 2026, where adventure sports, live music, art, and community collide.
Bike Events
GOPRO DUAL SLALOM
GoPro Jump Jam
Lucid KIDS BIKE RACE
Lucid XC MOUNTAIN BIKE
Lucid XC Short Track
ROAD BIKE HILL CLIMB
View Event Website

Thunder Valley Short Track Series
2026-06-09, 2026-06-16, 2026-06-23 | Thunder Valley Park, 701 S Rooney Rd, Morrison, 80465, United States
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.

View Event Website

Leadville Trail 100 Training Camp
2026-06-11 08:00 - 2026-06-14 17:00 | Leadville, CO, Leadville, 80461, United States
Increase your chances of capturing that coveted Life Time LT100 MTB belt buckle by attending the Life Time Leadville Trail 100 MTB Training Camp presented by Kenetik.
Across three days, you’ll cover every mile of the legendary course with special attention to the most grueling sections: Powerline, St. Kevins and the iconic Columbine climb. In the evening, you’ll join your experienced buckle-sporting guides for Q&A sessions on proper training, diet, bike setup and crewing logistics.
Camp spots are limited and historically sell quickly, so don’t wait to save your spot for this opportunity to ride with Leadville legends!
This event is held on the San Isabel National Forest under a special use permit.

The Hundo
2026-06-13 | Buffalo Creek, CO, Buffalo Creek, United States
The Hundo

The best 100K in the state. You get some challenging hills, sweet flow, and gorgeous views from Sandy Wash to Scraggy.

THE HUNDO is about 100 kilometers (62 miles) long, with approximately 7,386 feet of elevation gain.

The Hundito

A little shorter, but totally sweet version of the Hundo. You get the good parts of Sandy Wash and the CT. Still challenging, friends.

THE HUNDito is about 64 kilometers (37.6 miles) long, with approximately 4,387 feet of elevation gain.

View Event Website

Winter Park Classics - Double Up Hill Climb
2026-06-13 | Winter Park, CO, Winter Park, CO, United States
Join us for a 10K hill climb, 10K run, or both.
Ride up, run up, or double up!
From junior athletes up to professional racers, we have a category that suits everyone – even if it’s your first race! We pride ourselves on offering a welcoming, fun race event for anyone who wants to get out and climb. Participate in an uphill bike race, uphill run, or double up and race in both events! The youth RUN category is for participants 16 and younger.
This race begins at the base of Winter Park Resort and takes you up to the top of Lunch Rock.
Please note that start times are subject to change.
This race is also part of TWO separate Winter Park summer series: The Winter Park Classics XC MTB race & the Winter Park Peak to Peak Summer Showdown.
The four part xc mountain bike race also includes the Point to Point, Race Rendezvous, and Tipperary Classic. The four part running race series includes two 10K races, a 5K, and a half marathon.

Pikes Peak Apex
2026-06-13 08:00 - 2026-06-14 17:00 | Colorado Springs, CO
The Pikes Peak APEX continues to evolve! For 2026, we’re excited to introduce a new format – two separate one-day off-road adventures!
Next year’s event will take place the second weekend in June (June 13–14, 2026) and will feature two unforgettable days of riding, both starting and finishing at the beautiful Penrose House in Colorado Springs.
On Saturday, riders will take on the Queen of the Canyons Gravel event, featuring the same epic route that travels dirt roads to Cañon City and back, conquering Gold Camp Road, Shelf Road, and Phantom Canyon. A shorter course option will also be available, and timed segments will ensure racing takes place only where it’s safe to do so.
On Sunday, it’s all about the mountains with the APEX Mountain Bike Marathon, an endurance challenge climbing through the rugged backcountry of the Pikes Peak region. A shorter version will be offered for those seeking a more approachable ride.

Pikes Peak APEX - Mountain Bike Marathon
2026-06-14 07:00 - 16:00 | Colorado Springs, CO, Colorado Springs, CO, United States
The Pikes Peak APEX continues to evolve! For 2026, we’re excited to introduce a new format – two separate one-day off-road adventures!
This year’s event will take place the second weekend in June (June 13–14, 2026) and will feature two unforgettable days of riding, both starting and finishing at the beautiful Penrose House in Colorado Springs.
Marathon
This year’s APEX Mountain Bike Race is also the Colorado State Championships, and we have the all-time classic Colorado Springs ride in store.
Starting at the mouth of Cheyenne Canyon, this ride will sort itself out on a climb up North Cheyenne Canyon Road before taking a hard left into the trails of Sweetwater Canyon. Built just a couple of years ago (with some seed money from the APEX), this section of singletrack climbs up to Gold Camp Road, where riders will take a left through two old railroad tunnels on the way to Frosty Park, just above 10,000 feet.
From there, we will traverse north on Jones Park Trail, only to drop 3700 feet in 12 miles on Captain Jack’s trail—one of the most famous trails in southern Colorado. You won’t forget this one!
Mini marathon
The shorter mountain bike course still gets to enjoy the amazing singletrack climb up into Sweetwater Canyon, but then traverses over to Buckhorn climb before coming down the amazing descent of Lower Captain Jack’s.
Still a tough ride, but only about 15 miles of fun before getting back to the Penrose House.

High School Mountain Bike Camp - Advanced
2026-06-21 - 2026-06-26 | Gunnison, CO, Gunnison, CO
Advanced Camp

June 21-26
Join us for an immersive week of mountain bike cross-country racing development in the high-altitude paradise of Gunnison, Colorado. This comprehensive training camp is designed for expert-level, dedicated junior XC racers looking to elevate every aspect of their racing craft.

For expert-level high school students aged 14-18 years old.
6 days and 5 nights of MTB skills and adventures.
Students will stay on the campus of Western Colorado University.
3 meals a day will be provided by the cafeteria services on campus
$1149
Stay longer to compete in Junior Bike Week races in Crested Butte (June 26-28 weekend).
