Karen Hornbostel Memorial Time Trial Series
2026-05-13, 2026-05-20, 2026-05-27 | Cherry Creek State Park, CO
Since 1991, the KHMTT has been a spring rite of passage—Wednesday evenings at Cherry Creek State Park—where riders gather to test themselves against Colorado’s mercurial weather and a deceptively beautiful course.
We race with purpose. The KHMTT is a fundraiser supporting the Cancer Fitness Institute—founded in memory of Karen Hornbostel—and Bicycle Colorado. Karen Hornbostel was a four‑time masters national road champion who, despite a 13‑year battle with metastatic breast cancer, pioneered a groundbreaking fitness program for cancer patients. Her vision grew into what is today the Cancer Fitness Institute, improving the quality of life for thousands of survivors. Her courage and leadership continue to inspire every ride.
The COBRAS and the KHMTT are proud to support these organizations. When you ride with us, you’re not just chasing personal bests—you’re helping fund life‑changing programs and safer streets for cyclists across the state.

2026 Dates:
April 8, 15, 22, 29
May 6, 13, 20, 27
Register Here
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Wednesday Morning Velo
2026-05-13 06:30 - 08:00, 2026-05-20 06:30 - 08:00, 2026-05-27 06:30 - 08:00, 2026-06-03 06:30 - 08:00, 2026-06-10 06:30 - 08:00, 2026-06-17 06:30 - 08:00 (America/Denver) | Boulder, CO
Wednesday Morning Velo is Boulder’s premiere networking group ride.
Every Wednesday starting May 13, at 6:30 am.

Superville Stage Race - Superior Time-Trial State Championships
2026-05-16 08:00 - 17:00 | Superior, CO, Superior, CO, United States
SUPERIOR TIME-TRIAL RACE INFORMATION – Saturday May 16th, 2026

​​​​Superior Time-Trial Race Information: This is a 7.5 mile rolling course on the scenic roads between Superior and Louisville. The finish is also located just 1 mile away from the Louisville Criterium, so stage racers can easily transition from stage 1 to 2.
​Race Start Times: The 1st rider will start on course at 8:00am. Riders will follow in 10 sec intervals.
​​Pre-Registration: Closes Thursday 5/15 at 11:59pm (Pre-registered riders must pick up your number 20min prior to the start of your race. There is NO race day registration for this event)
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Superville Stage Race - Louisville Criterium
2026-05-16 08:00 - 17:00 | Louisville, CO
The Louisville course offers buttery smooth asphalt, fast flowing corners, a power incline, and wide open roads to really put the hammer down! If this is you’re only race at Superville, come shake off the rust and open up the throttle! If you’re racing the Superville Stage Race then you’ll earn a time bonus for a podium finish + two sprint primes

Ride for the Pass
2026-05-16 08:00 - 17:00 | Aspen, CO, Aspen, Colorado
The 32nd annual Ride for the Pass is a once-a-year opportunity to enjoy the beauty and quiet of Independence Pass without cars, in a fully supported, timed ride, with a fantastic raffle and barbecue to follow. All proceeds benefit the Independence Pass Foundation.
This race is organized and run by the Independence Pass Foundation. It is not an ACC race—as such, you must register for this race separately. ACC membership dues do not cover or include Ride for the Pass entry fees.

Register Here
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Tour de Victory
2026-05-16 08:30 - 13:00 | Louisville, CO
Join the Tour de Victory Cycling Challenge, Colorado’s premier Parkinson’s ride benefiting the Davis Phinney Foundation. This boutique bike ride is an opportunity to join the Davis Phinney Foundation’s inspiring community and make a positive impact on the lives of people with Parkinson’s. Select your preferred route (100k, 50k, or 20k) and ride any bike you like: road bikes, e-bikes, recumbents, trikes, and more are all welcome! Or BACK this year, join our stationary bike option next to the finish line, thanks to the YMCA of Northern Colorado!

Superville Stage Race - Morgul Road Race
2026-05-17 08:00 - 17:00 | Superior, CO, Superior, CO, United States
The Superville Stage Race all comes down to the Superior Morgul Road Race, one of the most iconic courses in all of Boulder County! Racers will compete on a 7-mile, fully closed to traffic, loop course on Highway 128. This is a rolling course on wide roads, with smooth asphalt. (see course map for more details). You can race this as a stand alone with race day registration, but you won’t be counted in the stage race standings.

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?

Pine Bluffs Lions Club High Plains Ride for Sight
2026-05-31 | Pine Bluffs, WY, Pine Bluffs, WY, 82082, United States
Major Sponsors:
Family Vision Center, Pine Bluffs Auto Parts & Hardware, High West Energy, Derede Darden exp Realty, Range
Pine Bluffs Lions Club 10th Annual High Plains Ride for Sight
Start time is at 8:00 am
Pine Bluffs City Park Pine Bluffs, WY
Continental Breakfast and Registration from 7-8 am.
Lunch for Participants and Volunteers: 11 am – 1 pm.
Registration: $50 for adults and children of family is $10 a piece.
HPRFS T-Shirt and a water bottle for each rider
Choose your distance from 5 miles up to 40 miles.
Route US HWY 30 to WY HWY 213 north to Burns Elementary School parking lot.
Any questions, contact Gary Roadifer
Phone 307-421-7247
Email garyroadifer@rtconnect.net
This event helps the Pine Bluffs Club in different ways. We help with eye exams, screening for toddlers, eye surgeries, camps for the blind along with diabetes, and various events that include working with the local pantry.

TNT Tuesday Night Thunder Race Series
2026-06-02 17:30 - 20:00, 2026-06-09 17:30 - 20:00, 2026-06-16 17:30 - 20:00 | Louisville, CO
Weeknight Criterium Bike Racing. Join us every Tuesday starting in June for some fast paced fun! Races will be self categorized and unsanctioned, keeping racing affordable and fun for everyone!

THE COURSE
The 0.6 mile TNT course is perfect for beginners and features three wide 90 degree turns followed by a long and gradual sweeping uphill turn that leads into the start/finish line.

P2P Mid-Week Training Series
2026-06-03 18:00 - 20:00, 2026-06-10 18:00 - 20:00, 2026-06-17 18:00 - 20:00 | Colorado State Patrol Academy Track, Golden, 80401, United States
2025 Table Mountain Race Series

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

Ride to End ALZ: Colorado
2026-06-06 | Colorado State University, Fort Collins, 80523, United States
All routes start and finish at Canvas Stadium on the Colorado State University campus in Fort Collins, and feature scenic views, along with best-in-class support along the way.
With distances ranging from 23 – 75 miles, we’ve got something for every skill level! You’ll feel well suppoWith distances ranging from 23 – 75 miles, we’ve got something for every skill level! You’ll feel well supported with Safety & Gear (SAG) vehicles, ample signage, and law enforcement at key intersections. You will also be treated to breakfast, fully stocked rest stops every 12-15 miles, and an after-party complete with a catered meal and drinks to enjoy as you cheer on your fellow cyclists at the finish line. Please note that to participate in person, riders are required to meet a $500 minimum fundraising requirement.
You can earn premium fundraising perks like the exclusive Ride to End ALZ jersey. And the best part — 100% of what we raise together will go to Alzheimer’s research. This is a premier fundraising cycling event in Colorado. Don’t miss it!
View Event Website

Missouri Heights Road Race
2026-06-10 08:00 - 17:00 | Aspen, CO, Aspen, Colorado
Course Description:
WE HIGHLY RECOMMEND FRONT AND REAR LIGHT ON THE BIKE. THIS IS A LONG RACE AND CAN FINISH AT DUSK MAKING IT HARD FOR CARS TO SEE BIKERS WITHOUT LIGHTS.

Riders will start near the Colorado Mountain College parking lots on Spring Valley Road (CR 114).
Ride north up Spring Valley Road to the intersection with Red Canyon Road (CR 115).
Turn right and follow Red Canyon Road east.
Turn right (south) onto Coulter Creek Road (CR 121).
Quickly turn left onto eastbound Upper Cattle Creek (CR 113), which riders will follow east and continue on Upper Cattle Creek as it turns into CR 122.
Follow Upper Cattle Creek as it turns southbound.
Turn right on Mountain View Road, then a quick left on Green Meadow Drive.
Turn right onto Fender Lane (CR 102).
Follow Fender lane until it intersects with Catherine Store Road (CR 100)
Turn right and follow Catherine Store northbound, then continue north at the intersection onto CR 113.

Long Course:

Turn right onto westbound Upper Cattle Creek Road and complete a second loop of Upper Cattle Creek, Green Meadow, Fender, and Catherine store.
At the completion of the second loop, continue north on CR 113 until the hard left onto CR 115 (Red Canyon), then continue westbound on Red Canyon until the finish line just before the turn off to High Aspen Ranch.

Short Course:

Short course riders will skip the second Fender/Catherine Store loop and proceed directly to the finishing area.

Bike MS: Colorado
2026-06-13 - 2026-06-14 | Colorado, United States
Bike MS Colorado is more than a ride—it’s a Rocky Mountain rally to end multiple sclerosis. We’ll journey from the foothills of Boulder to the plains of Greeley, powered by breathtaking views, passionate riders, and a community that shows up big. As part of one of the largest fundraising cycling series in the world, every mile you ride brings us closer to a world free of MS. Feel the energy of the Front Range, the cheers from local supporters, and the camaraderie that makes this ride unforgettable. Together, we pedal with purpose—one stroke, one summit, one Colorado sunrise at a time.
Fundraising Minimum: $400
Route Distances: Day 1 – 36, 78, or 100 miles. Day 2 – 25 or 65 miles. *Routes are subject to change
View Event Website

Frying Pan Road Race
2026-06-17 18:00 - 20:00 | Aspen, CO, Aspen, Colorado
Course Description: Both the short and long course share the same first 13 miles. From the start approximately 1.5 miles up Frying Pan Road from Basalt, the course heads east up the Frying Pan Road past Ruedi Reservoir to the high point above the reservoir at mile marker 17.

Short Course: Short course categories will turn around at mile marker 17 (where indicated by a marker/Marshal) and reverse course to the finish line near mile marker 4 (about 2 miles up from the start line). Race distance for this group is about 28 miles.

Long Course: From the high point above the reservoir the long course categories will continue east on the Frying Pan Road to the Norrie Colony (about 25 miles from the start) where they will reverse course and ride to finish line near mile marker 4 (about 2 miles up from the start line). There will be a Marshal or marker at the turnaround point. For these three groups, the race features approximately 48 miles of racing and 3,000 feet of climbing.

Summer Vibes Bike Rally & Run
2026-06-20 | Lyons, CO, Lyons, United States
Summer Vibes Fest blends trail running and bike riding adventures with a fun summer-themed music and camping festival. Cycling events include a 100K Gravel Bike Rally with 4 timed segments, a 50K Gravel Bike Rally on a classic Boulder County gravel route, and a NEW Road Bike Rally!

Freedom Tour Classic
2026-06-20 06:30 - 13:00 | Fort Collins, CO
A one-day celebration to support kids rescued from human trafficking. Cycling routes range from a 62-mile metric century to a 15-mile family fun ride, plus a 5K neighborhood walk. All participants receive lunch and either a custom cycling jersey or T-shirt as part of their registration.
Join us for a great day of friendship, food, and fun—all to support a great cause.

Solstice 100K Criterium
2026-06-21 08:00 - 17:00 | Golden, CO
The Solstice 100k Crit is looking to bring back the history and legacy of 100km criterium racing. Their aim is to introduce longer criteriums back to the Front Range of Colorado. They will be racing at the familiar CSP venue, but be ready for a different finish location and a fresh energy.
All races will be significantly longer, so fuel accordingly and make sure to race with two bottles.
There will be three main groups of racing, but scored separately within the race, so racing for every place will make a difference.
The Solstice 100k will have high-speed camera timing with quick results, a live announcer, and event medical on site.
