Showing 135 events within 100 km in the next 90 days. Page 7 of 7.
Sun, Aug 23, 2026 at 5:00 AM
77.7 km from TabernashCycling
Sun, Aug 23, 2026 at 7:30 AM
Welcome to the Pioneer Prairie Dog Half Marathon event; the one that started the series! With 10k and 5k events too!
Everyone is back to school and slipping into a routine. Make this your mental health break as you break away from the chaos of weekly schedules and give yourself a morning to race in the crisp autumn air! You'll be glad you took time for YOU!
5k 10k 13.1 Miles Run
Sun, Aug 23, 2026 at 7:30 AM
Rumble at the Ranch is a 6 hour mountain bike relay for teams of two or three riders as well as solo racers. The race takes place on the amazing Highlands Ranch Backcountry singletrack and double-track trail system. Teams will see how many laps of the 7.6 mile loop they can complete in 6 hours.
Mountain Biking Relay Trail
Sun, Aug 23, 2026 at 8:00 AM
Join Conservation Colorado for the second annual Rebel Run 5k! Run, walk or stroll to show your passion for Colorado's climate, air, land, water and communities. Create or join a team, or go solo –
every dollar you donate or raise supports Conservation Colorado's efforts to protect the beautiful state we love and the communities who call it home. After the race, celebrate at our finish line party with food, drinks, sponsor booths and more. Sign up today to become a rebel and move for the cause! Stay tuned for registration opening.
3.1 Miles 5k Run Walk
Wed, Aug 26, 2026 at 6:00 PM
Join us August 5, 12, 19 & 26 for a fun series of shorter midweek trail races. This fourth race of the series will take place on the fast and flat Valley Trail at Lory State Park.
Our goal is to
offer a fun, low-key series of races designed to give newer trail runners an opportunity to dip their toes into the trail racing waters, and to offer more experienced trail racers a chance to sharpen their speed on shorter, quicker courses. All races will start at 6:00pm, ranging in distance from 5k to 12k. Results will be tabulated according to chip times, with series points awarded for each race. Top series finishers will earn unique awards.
We'll have a wide selection of vintage Gnar race shirts, and all registrants are welcome to their pick to call their own.
After each race, we will be providing pizza with support from the Fort Collins Running Club and beverages with support from New Belgium Brewing.
Race dates and distance are as follows:
August 5: Flat and Fast Eltuck Valley 5k (250′ elevation gain)
August 12: Into the Hills Eltuck 5k (700′ elevation gain)
August 19: Into the Hills Eltuck 10k (1,700′ elevation gain)
August 26: Flat and Fast Eltuck Valley 12k (500′ elevation gain)
Start: Lory State Park, Eltuck Picnic Area, Fort Collins, Colorado
Distance: 5k - 12k
Dates: August 2026
Time: 6:00pm
Cost:
Thru 6/30: $25 each race or $80 for the series
7/1 & After: $30 each race or $100 for the series
Special pricing of $10/race for Ages 17 & Under. Price change will be automatically applied based on registrant's Date of Birth before final checkout on RunSignup.
All race participants are welcome to a free vintage shirt from previous Gnar races (your choice and as available). Awards will be given out at the end of the series to top points scorers.
We acknowledge and respect those who experience their gender identity in ways outside of the traditional male/female dichotomy, and are trying our best to provide non-binary opportunities in both the registration and results to reflect that. For the purposes of awards, non-binary runners will be eligible in their birth gender pool.
Race dates and distance are as follows. Click the race link to view the course map
Trail Sisters Approved
Transfer Credit & Distance Change Policy
If you are not able to race, we can offer a 75% race transfer credit that can be applied to any future Gnar Runners race (valid for 12 months). We can also directly transfer your entry to another race in the series for the same year, assuming the new race is not sold out. Transfers/Credits can be requested any time up until 72hrs before the start of each race in the series. To request a transfer credit please Contact Us.
Cancellation Policy
With the exception of waitlist transfers, entries are non-refundable and non-transferable. In the event the race is cancelled due to extreme weather, fire, disease or for some other unforeseeable event, we cannot offer refunds or credits.
Rules
Purposeful littering is prohibited and will result in an immediate disqualification.
Stay on the trail. No bushwhacking or short cutting. In case of wet trail conditions, please run through any muddy sections to avoid widening the trail. Yield to pedestrian and horses. Mountain bikers should yield to runners, but please use common sense in all circumstances.
If coming up on a slower runner or regular park user while on trail, please give an early verbal notice that you are approaching and wait for the hiker/runner to step off to the side before passing.
No mechanical aid (poles, traction devices, etc.) unless approved by race staff prior to the race for a specific reason.
Dogs are not allowed on the course with runners.
If you do not have an annual Colorado State Parks Pass or a pass with your vehicle registration, you will need to purchase a day pass ($10) when you enter the park.
Parking will be at the Eltuck Picnic Area until filled, after which we will direct cars to the nearby Spur Road. For those parking on the Spur Road, it will be a short walk to the start.
Bibs will be available for pick up at the race start from 5:00pm. Chips will be pre-attached to your bib. If you are running multiple races in the series, please keep your bib to reuse in your next race(s).
Aid, Etc
These are no frills, basic races. There is no on-course aid.
There are two permanent toilets at the start/finish of each race. Additionally, the Valley 5K goes past park restrooms at the 0.25 and 1.5mi marks; the Hilly 5K & 10K go past a park restroom at the 0.25mi mark, and the Valley 12K goes past park restrooms at 0.25, 3.8, 6.1 & 6.3mi marks.
12k Run Trail Walk
Sat, Aug 29, 2026
96.6 km from Tabernash50k Run Trail Ultra
Thu, Sep 03, 2026
78.7 km from Tabernash50k Ultra
Sat, Sep 05, 2026 at 7:00 AM
Introducing the Raising the Barr Ultra Race. Try to finish as many 10 mile loops around the lake in the first 4 or 10 hours and then switch to 1 mile loops for the last few hours of your race.
Registration includes bib, t-shirt, and post-race meal.
Run Ultra
Sat, Sep 05, 2026 at 8:00 AM
Join us for Cirque Series at Arapahoe Basin. 9.4 miles featuring 2,211' ft vert.
Prizes
Prizes will be distributed at the end of each race and for the overall series winners. There are three
categories in which the prizes will be given out: Sport, Expert and Pro. Prizes for each race are as follows:
Pro
1st place - $1000 cash each race
2nd place - $250 cash each race
3rd place - $150 cash each race
Expert
1st - $400 in Gear each race
2nd - $250 in Gear each race
3rd - $150 in Gear each race
Sport
1st - $300 in Gear each race
2nd - $200 in Gear each race
3rd - $100 in Gear each race
Grom Award - youngest competitor will be recognized.
OG Award - wisest competitor will be recognized.
Lexie Award - the "unofficial MVP" of the race will be recognized.
Middle of the Pack Award - the person that finished exactly middle will be recognized.
Overall 2026 Season Winner + Points
The racers with the most points at the end of all races will be declared the overall 2025 winner. The top 20 racers of each event will obtain points. The following is the per stage breakdown as a function of place:
1 - 50pt 6 - 30pt 11 - 20pt 16 - 10pt
2 - 40pt 7 - 28pt 12 - 18pt 17 - 8pt
3 - 36pt 8 - 26pt 13 - 16pt 18 - 6pt
4 - 34pt 9 - 24pt 14 - 14pt 19 - 4pt
5 - 32pt 10 - 22pt 15 - 12pt 20 - 2pt
PRIZE MONEY 2026 OVERALL SEASON STANDINGS **Men's & Women's
PRO
PEAK FREAK Belt Buckle - Overall 2026 season
PEAK FREAK Belt Buckle - Overall 2026 season
PEAK FREAK Belt Buckle - Overall 2026 season
EXPERT
1ST - PEAK FREAK Belt Buckle - Overall 2026 season
2ND- PEAK FREAK Belt Buckle - Overall 2026 season
3RD- PEAK FREAK Belt Buckle - Overall 2026 season
SPORT
1ST - PEAK FREAK Belt Buckle - Overall 2026 season
2ND- PEAK FREAK Belt Buckle - Overall 2026 season
3RD- PEAK FREAK Belt Buckle - Overall 2026 season
**Everyone that runs six 2026 Cirque Series races will receive a Cirque Series 2026 PEAK FREAK belt buckle
Registration
Registration
We cap race at 700 runners, please sign up early.
Bibs / Timing Chips
Cirque Series will utilize Competitive Timing to time the event with a disposable chip placed on the back of your bib. Please do not fold, crush or remove the chip from the bib. You may dispose of the chip/bib after the race is over.
Rules / Guidelines
Please help us preserve the beauty of our mountains and assist in maintaining an enjoyable, safe event for everyone involved.
Please respect private property near the trails. Do not trespass.
No littering: Participants are encouraged to carry water and food during the event.
Please dispose of all waste and recyclables in the proper containers.
Please be respectful of all Forest Service officials.
Do not impede another runner.
Leave no trace: Pack-in pack-out.
Food & Water stations
We will provide hydration on course at aid stations for all participants & will also be available at finish line.
Any Q's, please email:
9.4 Miles Run Trail
Sat, Sep 05, 2026 at 10:00 AM
Lace up your shoes and join us for the Demon Dash at its new course at the NAAC! We're excited to bring this course its new home and onto dirt! Whether you are a runner or walker, this will be a fun community event for all.
This year's race will follow the high school races at the Demons Invite, so make plans to come on out early to support them before you race. High school races start at 8:15am.
5k Run Walk
Sun, Sep 06, 2026 at 8:00 AM
ON YOUR MARKS! GET SET!
GO BRONCOS!
Register to run in the 14th Broncos 7K presented by CommonSpirit, Ticketmaster, King Soopers, and Cigna.
2026 Race Route Highlights: Participants will start at
Empower Field at Mile High to warm up with Denver Broncos Cheerleaders before heading west into the Sloan's Lake neighborhood. Racers will then head back to Empower Field at Mile High, through the tunnel, and onto the field to finish on the 50-yard line!
The Race begins on Sunday, September 6, at 8 a.m. Racers can pick up their race packet on either Saturday, September 5, or Sunday before the race. Free parking will be available at the stadium. Guests and spectators can cheer on the racers as they cross the finish line from designated viewing areas inside the stadium.
Plus, stay after the conclusion of the 7K for our Kids Fun Run and a new and improved Finisher Festival and Broncos Fan Rally, featuring Broncos Alumni, Miles the Mascot, Denver Broncos Cheerleaders, and more!
7k Fun Run Run
Sun, Sep 06, 2026 at 10:00 AM
Voted best 10k in the state of Colorado by Colorado Runner Magazine in 2010!
This is a challenging trail run with beautiful terrain and breathtaking scenery. The 10K race begins at 10,000 ft at the
summit of Rabbit Ears Pass. The course begins by heading uphill on USFS dirt roads and 2 track, and then then heads downhill on single-track, ending on a cross country single-track. The total elevation gain and loss are about ~1,200 feet each.
*Although this race is listed as a 10k, the actual distance comes out to 6.8 miles. We will have one aid station on the course about 3.4 miles in (the 5k race option does not have an aid station). We HIGHLY recommend that you bring your own water.
4 Miles 10k 8 Miles Run Trail
at 5:30 PM
Registration for the Summit Trail Running Series gets you into all 6 of our races around Summit County on a variety of amazing trails during the most beautiful time of the year here. From Dillon, to
B&B, to newly added Arapahoe Basin, get ready for some fun trails with stunning mountain views. The trail running races are every other Wednesday around 5:30 PM. More specific start times and distances for long course and short course will be posted for individual races. The series race dates are 5/17, 5/31, 6/14, 7/12, 8/2, and 8/23. Check out racebreck.com for more information on the series and individual races!
Event details and schedule
Run Trail
Every Saturday at 9:00 AM
parkrun is such a simple concept: turn up every Saturday and volunteer, walk, jog or run 5k.
5k parkrun Run Walk
at 5:30 PM
The Summit Mountain Challenge is a Mountain bike race series located in Summit County, Colorado. Take advantage of the various single track trails around Summit County, while competing against
others. We have courses and age categories depepdning on your skill level. Register for the entire series to receive 30%. Following each race, participants over the age of 21 will receive a beer. Do not miss out on this outdoor party that is disguised as a bike race!
Event details and schedule
Day-of registration will be available for $35 beginning at 4:00pm on race day at each trail head, along with bib pickup. We accept Cash, Checks and Credit Cards.
The category start times listed on our website are subject to change:
Mountain Biking Trail