Sat, Jun 13, 2026
🗺️ The Ironman 70.3 Boulder is a must-attend event for your triathlon calendar in the United States.
Triathlon
Sat, Jun 13, 2026 at 8:00 AM
We look forward to welcoming everyone to KowTown Gravel on June 13, 2026. Please categorize yourself in the spirit of USA Cycling guidelines.
Our categories are:
Women
Men
Non-binary
E-bikes - allowed in the Cow and Calf course (will not be timed, no prizes)
We include age group rankings so that you can filter and compare your results more easily.
Good luck at KowTown!
16 Miles 28 Miles 54 Miles 88 Miles Cycling Gravel
Sun, Jun 14, 2026 at 8:30 AM
Back by popular demand, the 15th Annual Women Wheels and Wine brings together all levels of mountain bike enthusiasts who want to learn and/or grow their skills and knowledge baset. The day-long
event includes professional instruction, a catered lunch at Devil's Thumb Ranch Resort & Spa, a wine and cheese bike maintenance clinic, along with a good dose of fun and female camaraderie!
Call the Activities Center at (970)-726-8231 for more details and booking information.
Event details and schedule
Devils Thumb is proud to announce the 15th Annual Women's Mountain Biking Clinic on Sunday, June 14th, 2026
Women's Mountain Bike Clinic, from 8:30am-4pm
Schedule:
8:30 – 9:30 : Check-in at Registration area (Broad Axe Barn)
Pick up bike rental at the Activity Center in Zach’s Mercantile.
Participants will have access to the Locker Rooms all day
9:30 – 9.45 : Registration and Pre-ride information
10 - 12.00 Mountain Biking
Break into groups based on ability levels. Skills, drills, and ride DTR trails
12:15 – 1:30: Lunch in the Broad Axe Barn
1:30 – 3:00: Afternoon options
Additional mountain bike ride time
Afternoon Yoga
1:45pm - 2:45pm : Yoga at the Broad Axe Barn (yoga mats provided)
3:00 – 4:00 : Bike maintenance clinic with wine and cheese social hour at the Broad Axe Barn
Mountain Biking Trail
Wed, Jun 17, 2026 at 5:00 PM
Wednesday evenings on some of the most-loved directional trails on the Front Range. Is it an Enduro? Downhill? Downduro? Whateva, it’s a heck of a good time.
Trail
Sat, Jun 27, 2026 at 12:01 AM
$55.55 New Year’s Eve Pricing
The gnome picked the number.
New beginnings, big changes, zero regrets.
Hey Beautiful Slackers!
The 2026 Slacker Races will be held on June 27 Start Time 7:30am
There
will be NO RACE DAY REGISTRATION
Get ready for an epic adventure at the 2026 Slacker Races!
Seize the chance to earn your bragging rights as a true Slacker! Embark on this exhilarating journey starting at the base of Loveland Ski Area, perched at an impressive elevation of 10,630ft. Brace yourself for an unforgettable descent to 8,400ft, followed by post-race festivities in charming historic Georgetown. Picture an abundance of freebies, locally crafted beer, post race pampering, and entertainment to celebrate your achievement!
The course is a thrilling mix of dirt and paved roads, guiding participants through enchanting wetlands, natural waterfalls, breathtaking views of the Continental Divide, and remnants of historic mining sites.
RACE LOCATION - CITY PARK / FOSTERS PLACE
FULL DETAILS CAN BE FOUND ON OUR WEBSITE AT https://www.slackerhalfmarathon.com/
See you June 27, 2026 Slackers!
4 Miles 13.1 Miles Half Marathon Relay Run
Sat, Jun 27, 2026 at 5:00 PM
Join us for the 29th running of the Downtown Boulder Pearl Street Mile on Saturday June 27th, all taking place on the Pearl Street Mall.
It is a massive night of 1-Mile races on our criterium
multi-lapped course, that starts on Spruce St and 14th St. It completes 3.75 laps around the famous Boulder Court House and up the Pearl Street Mall. Famous Landmarks you will run past:
Boulderado Hotel - 1909
Boulder Theater - 1906
Boulder Court House - 1933
Pearl Street Mall - 1977
Races on offer:
5:00PM - Kids 800m
5:20PM - Family and Friends 1-Mile
5:40PM - 10min or slower
5:55PM - 9:00 - 9:59
6:10PM - 8:00 - 8:59
6:25PM - 7:00 - 7:59
6:40PM - 6:00 - 6:59
6:55PM - 5:00 - 5:59
7:10PM - High School Girls
7:25PM - High School Boys
7:35PM - Elite Masters Men and Women
7:50PM - Elite Women
8:00PM - Elite Men
With over 2000 spectators lining the course, and screaming their lungs out, what better way to spend your Saturday evening, than racing around Boulder's iconic land marks, and partying on the Pearl Street Mall with high energy racing and a pumping DJ!
Our FREE T-Shirt offer ends Sunday, May 17th at 11:59PM.
Baby strollers ARE allowed.
NO Dogs are permitted in the race.
There are NO race refunds.
1 Miles Run
Sun, Jun 28, 2026 at 5:30 AM
Although the air will be noticeably thin at the starting line, Echo Lake's 10,600 feet of elevation is just the beginning. The climb totals nearly 4,000 vertical feet - much of it above treeline - as
you make your way 14.5 miles to the finish line located at the summit of one of the most recognizable peaks on Denver's mountain skyline - 14,264 foot Mt. Blue Sky (formerly Mt. Evans). Learn about the name change by clicking here..
Be inspired!!!
Join us on June 28, 2026 for another memorable run.
Spectators will include Bighorn Sheep, Marmots, and Mountain Goats - maybe even a few people!!!
There are two options in 2026: The Ascent is a one-way 14.5 mile climb from Echo Lake the summit of Mt. Blue Sky. the Round Trip is just as it sounds -- you will run to the top, then run back down.
14.5 Miles 29 Miles Run