Sponsored by:

Have an event to List?
Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all.  To have an event posted here please follow this link:  Event Policy Submission & Guidelines

Steamboat Stinger MTB Race

Howelsen Hill Ski Area Howelsen Pkwy, Steamboat Springs

Steamboat Springs   In 2017 we are proud to announce the seventh annual Steamboat Stinger. The Steamboat Stinger, now a Colorado classic, aims to provide a challenging backcountry race experience showcasing some of Steamboat Springs' finest singletrack. The Steamboat StingerRead More

2nd Annual Bite the Bullet Gravel Fondo

New Belgium Brewery 500 Linden St, Ft. Collins

Ft. Collins   Second Annual FoCo Fondo's Bite the Bullet Gravel Fondo in Fort Collins, Colorado, hosted at New Belgium Brewing.  Fort Collins first Gravel Fondo! Here's the short and simple: Remote gravel roads, open spaces, heavily stocked aid stations,Read More

Bike MS: Bighorn Country Classic

Sheridan College Sheridan

Sheridan, Wy   Bike MS: Bighorn Country Classic 2017 is a two-day ride that will take you farther than you’ve ever gone before. What makes this ride so special? Participants will ride through beautiful Sheridan, Wyoming and the surrounding communities.Read More

Velorama Mayor’s Ride & Kid’s Ciclovia

Walnut & 30th St Denver

Denver   Mayor Michael B. Hancock will lead a youth bike ride and cut the ribbon on a kid’s ciclovia event for youth ages 5-15 at the Velorama Festival in RiNo, River North Art District on Saturday, August 12th. The ride will depart from the start/finishRead More

Pioneers of the Peloton

Denver Velorama Colorado Classic Expo       Those guys in the photo? The first American cycling team to contest the Grand Tours of Europe – Team 7-Eleven.   Join us Saturday August 12th at the Colorado Classic Expo Meet and Greet withRead More

Backcountry Burner CX

Highlands Ranch   Registration opens on June 1 for the package of four races, and is open until August 1. At that time, you can still register for each individual race either in advance or at the race ($5 moreRead More

DUST2: Shaeffer’s Track

Mark you calendars for the 2017 DUST2 Back Yard Mountain Bike Race Series line up! This fun race series has something to offer riders of every ability, so bring the whole family and all your friends! This year we have addedRead More

3rd Annual Food Rescue Ride

Cherry Creek State Park 4201 S. Parker Road, Aurora

Cherry Creek State Park   This is Denver Food Rescue’s yearly un-gala. We wanna be out on our bikes while we fundraise and celebrate the successes of DFR and our neighborhood partners! Our rad community is passionate about bikes ANDRead More

WP Epic Singletrack: King of the Rockies

Winter Park Ski Area Winter Park

Winter Park   Epic Single Track Series Race 1: Saturday, June 10 - Granby Ranch XC Kick-Off Race 2: Saturday, June 24 - Super Loop Race 3: Saturday, July 8 - Race Rendezvous Race 4: Saturday, July 22 - ElkRead More

DUST2: Sewell’s Pursuit

Mark you calendars for the 2017 DUST2 Back Yard Mountain Bike Race Series line up! This fun race series has something to offer riders of every ability, so bring the whole family and all your friends! This year we have addedRead More

Wacky Bike Ride

Larkspur Community Park 8850 Spruce Mountain Rd, Larkspur

Larkspur   The Wacky Bike Ride is a one-day cycling event to encourage fitness and fun. With five rides to choose from and money from each registration benefiting Project ReCycle, the Wacky Bike Ride is a no-brainer way to spendRead More

Scott Sweeney Book Signing: I Was Never Afraid

Barnes & Noble 960 S Colorado Blvd, Glendale

Glendale   I am very excited to announce the release of my next novel I WAS NEVER AFRAID. . This suspense/thriller has a bit of a twist. A mysterious character in the fiction portion of the book is revealed in a postRead More

Book Signing: I Was Never Afraid

Thorncreek Barnes and Noble 701 E. 120th Avenue, Thornton

Thornton   I am very excited to announce the release of my next novel I WAS NEVER AFRAID. . This suspense/thriller has a bit of a twist. A mysterious character in the fiction portion of the book is revealed in a postRead More

Blood Road Screening

Boulder Theater 2032 14th St, Boulder

Boulder   Sports Garage Cycling is proud to bring the feature length film BLOOD ROAD to Boulder. Our mountain bike imaginations have been ignited by Rebecca Rusch's emotional 1,200 mile journey through Vietnam, Laos, and Cambodia. Join us on Saturday,Read More

USAFA Road Race

USAFA 4102 Pinion Dr, Colorado Springs

Colorado Springs   Time Trial Tace Falcon Road Race Hospital Criterium   CO Master RR Championships Rocky Mountain Road and Team Cup   Event flier and registration here

Badlands Circuit

Highlands Ranch   Registration opens on June 1 for the package of four races, and is open until August 1. At that time, you can still register for each individual race either in advance or at the race ($5 moreRead More

N. Broadway ReConstruction Mtg

Armante Coffee 4580 Broadway, Bouder

Boulder   The North Broadway Reconstruction Project will improve the pavement condition of the street infrastructure and make improvements to the multimodal facilities where possible. The planning and design phase begins in 2016, with construction planned to start in 2018/2019Read More

Back2Basics CX Series

Lookout Mtn. Youth Service Center 2901 Ford Street, Golden

Golden   Event flier here Registration here

SMC: Peaks Trail TT

Breckenridge Nordic Center 9 Grandview Dr, Breckenridge

Summit County   The Summit Mountain Challenge Mtn Bike Series was inherited in 2001 by Maverick Sports Promotions. Jeff had been timing alpine ski races for Team Breckenridge since 1996, raced bikes for a couple of years, and was looking forRead More

Beaver Creek Blast

Centennial Chair, Beaver Creek   Event details and registration here   Full series includes the following events May 31st - Eagle Ranch Classic XC June 14 - Berry Creek Bash June 28 - Battle @ Bellyache  July12 - Lost LakeRead More

Women’s Weekend on Wheels

Waunita Hot Springs Ranch 8007 Co Rd 887, Gunnison

Gunnison Women Only!  Come join the Wild Women’s Weekend on Wheels! This is a weekend of riding, pampering, laughing, enjoying good food and beverage and fun. The riding will focus on mountain biking and cyclocross.  Yes, cyclocross!  That crazy typeRead More

Tour de Fat

Bouder Theater 2032 14th St, Boulder

Boulder   Fat Tire presents the Tour de Fat at the Boulder Theater on August 25th. The event will feature world-class acts, top-notch beer and philanthropic fun benefiting Community Cycles. Wilderado is headlining the show. Brent Cowles will also take theRead More

Venus de Miles

longmont

Longmont   Venus de Miles is Colorado and Illinois’ first and largest women's bike ride and finish line festival. Multiple course options welcome all ability levels and ages to this celebration of sisterhood and community.  Registration includes extensive on-course support,Read More

Rampart Rager 100k Gravel Grinder

Criterium Bicycles 6150 Corporate Dr, Colorado Springs

Colorado Springs   This course is sensational!! Phenomenal views, super challenging but brutally fun 63 miles, 80% Dirt, 20% paved and bike path. Starting at Criterium Bike Shop, following bike path to Garden of the Gods, thru the Garden, upRead More

Monarch Mind Bender

Monarch Pass, Gunnison County   Please make sure to read all rules for this.  This is fully unsupported and you will need to be self-sufficient in order to complete this.  Earn your turns and ride 5 amazing descents in aRead More

Colorado League Race #1

Frisco   Frisco Bay Invitational Colorado High School Cycling League Complete Series: Race #1 Frisco Bay Invitational: August 26 (North Conference) / August 27 (South Conference) Race #2 Showdown in the Boat: September 10 (North Conference) Race #2 Cloud CityRead More

CF Cycle for Life

The Rock Wood Fired Kitchen 53 Centennial Blvd, Highlands Ranch

Highlands Ranch   The CF Cycle for Life is a fully-supported ride with route options of 32 and 65 miles. From breakfast to our cycle post party, you can enjoy fully stocked rest stops every 10-12 miles, bike mechanics forRead More

BVV Women’s Night at the Track

Boulder Valley Velodrome 601 Bonnell Avenue,, Erie

Erie   Ever wanted to try the track? Or maybe just see it in person? We're having a party, and we invite you to come to Boulder Valley Velodrome and do one or both. Experience the thrill of riding theRead More

Baseball and Bikes Evening Tour

Mile Marker 48 on the High Line Canal Trail 430 S Quebec St, Denver

Denver   Enjoy an evening bike tour through Denver’s grandest cemetery! Take a guided tour through Fairmount while visiting the gravesites of baseball players and historic figures. Did you know Denver had one of the nation's first negro leagues? OrRead More

The DFC Criterium

Denver Federal Center Kipling St, Denver

Denver   Rocky Mountain Road and Team Cup   Event flier here

Golden Gran Fondo

Golden   The Gran Fondo National Championship Series offers not only the hardest road racing series in the nation, but also the most fun! Ride with your friends, Race with your friends 3 Distances to choose from: Gran Route (81Read More

Oskar Blues Gold Rush Bike Rally and Run

North Boulder Park Boulder

Boulder   The Boulder Gold Rush offers a cycling or running option, both with a very rewarding twist: GOLD NUGGETS. There will over 100 gold-painted rocks which can be exchanged for awesome prizes like Lucky’s Market gift cards, a REEBRead More

Minturn Mini Back to School Bash

Minturn   Event details and registration here   Full series includes the following events May 31st - Eagle Ranch Classic XC June 14 - Berry Creek Bash June 28 - Battle @ Bellyache  July12 - Lost Lake Loop (adults only)Read More

Tri Velo CX Camp

Ponderosa Ranch 15235 Furrow Rd, Larkspur

Larkspur   Junior CX Camp provides a safe, structured environment for our juniors to learn the basics of cycle cross riding and racing. Consisting of group rides, skills riding, contact drills, and talks about training, tactics, bike maintenance and nutrition,Read More

Red Rocks Challenge

Edelweiss Club 17832 CO-8, Morrison

Morrison   The RED ROCKS Challenge has 4 different mileage routes with the toughest being the Metric Century - 62 miles and 6300 ft of climbing. There is also a 50 mile option, a 30 mile option and and 5Read More

Estes Epic – 25 & 50 mi MTB

Estes Park Events Complex 1125 Rooftop Way, Estes Park

Estes Park   Participate in a 25 or 50 mile Mountain Bike race in beautiful Estes Park, CO. 25 mile has 3,500+ft of climbing and the 50 brings the hurt of 7,000+ft! Not a rider? The next morning we comeRead More

Steamboat Springs Stage Race

Steamboat Springs   The Steamboat Stage Race was started in 2009 by racer Corey Piscopo in order to add a new and exciting event to the Colorado race calendar. Now in it’s 9th year, Corey and a volunteer organizing committeeRead More

Crested Butte Classic

Crested Butte Chamber of Commerce 601 Elk Ave, Crested Butte

Crested Butte   Event details and registration here   Part of the Colorado Endurance Series Series event list here

TriVelo Elite CX Camp

Ponderosa Ranch 15235 Furrow Rd, Larkspur

Larkspur   Junior CX Camp provides a safe, structured environment for our juniors to learn the basics of cycle cross riding and racing. Consisting of group rides, skills riding, contact drills, and talks about training, tactics, bike maintenance and nutrition,Read More

Grand Traverse

Ajax Park 585 Cemetery Lane, Aspen

Aspen   Event details and registration here

Lee Likes Bikes Level 1 MTB Skills Clinic

Valmont Bike Park Boulder

Valmont Bike Park, Boulder   Mountain biking is such a rad sport—and it’s about to get even radder. Do you know how it feels to rail a turn on skis or snowboard? Learn how to do that on your bike.Read More

$75

BVV Thursday Night Racing

Boulder Valley Velodrome 601 Bonnell Avenue,, Erie

Erie   Event details and registration here

Ladies Only: Intro to CX Info Night

Feedback Sports 600 Corporate Cir, Golden

Golden   Ladies!! Are you cyclocross-curious? Do you have some cyclocross experience but are looking to learn more? Are you super-experienced but looking to meet more women who ride different disciplines? If you said yes, (which WHY WOULDN’T YOU?!?) thenRead More

FREE

Golden Giddy UP

Lions Park 1300 10th St, Golden

Golden   Saddle up for the last of our clinics this summer, right at home in the heart of Golden, Colorado! In conjunction with the Golden Giddyup, VIDA is offering a 1-Day Workshop on Saturday, September 9. The first annualRead More

Rocky Mountain Enduro Series, Race #3

Steamboat Bike Park Steamboat Springs

Steamboat Springs   Five Races, Three States, Great Racing! The Enduro-X returns for year five on the Colorado, Enduro race circuit. For 2017 expect to experience never raced before trails for Day 1 in the backcountry. We heard you, bringRead More