Fall Equinox Marathon

Mishawaka Amphitheater 13714 Poudre Canyon Rd, Bellvue, CO 80512, Bellvue, CO, United States

Held on the Autumnal Equinox during the height of fall color, the Equinox Marathon, Half Marathon and 5-miles races are all point-to-point, net downhill, scenic courses along the Cache La Poudre River in Fort Collins. This year, the event will take place on September 18th.

RMRR Fall Marathon Training Series

Riverwalk Ballfields 9830 Riverdale Rd, Thornton, CO, United States

RMRR’s Marathon Training Series provides 10M and 20M races that are low cost, friendly, fully supported, and officially timed.  All you need to do is focus on your running!  Our races fit perfectly in training schedules for Colfax, Boston, New York, Chicago, and other full and half marathons. Everyone is welcome at our MTS races:  RMRR members, […]

Pikes Peak Marathon

Memorial Park - Manitou Springs 502 Manitou Ave, Manitou Springs, CO, United States

The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at 14,115 feet, and back down for a total of 26.2 grueling mountain miles. It and its sister race, the Pikes Peak Ascent, each climb about […]

Sunlight Showdown Half Marathon

Sunlight Mountain Resort 10901 County Road 117, Glenwood Springs, CO, United States

Do you have what it takes? If so, then come join us for an old school race weekend at the 3rd annual Sunlight Showdown at Sunlight Mountain Resort. We will start off with a 13 mile mountain bike race on July 16th and finish with a 13 mile trail run on July 17th. Participate in one […]

Oktoberfest Triathlon

Union Reservoir 461 County Road 26, Longmont, CO, United States

The annual Oktoberfest Triathlon on Saturday September 24th, 2022,  is the party of the season and also a 2022 Mountain Collegiate Conference Race!  As the leaves change color this race will officially end the Colorado Triathlon Season!  It's been a long fun season but before the snow begins to fall let's get one more triathlon […]

Second Wind Fund 5K

Clement Park 7306 W. Bowles Avenue, Littleton, CO, United States

It is more important than ever to invest in the mental health of our children and teens, many of whom have undergone significant changes to their daily lives and have experienced increased levels of anxiety, stress, and feelings of disconnectedness over the past few years. Demand for Second Wind Fund's life-saving services continues to increase. […]

$25 – $35

Golden Gallop 5K/10K

Golden High School 701 24th St, Golden, CO, United States

“Howdy Folks! Welcome to Golden, where the west RUNS!” Starting beneath the City’s famous ‘Welcome’ arch, right in the center of historic downtown Golden, and finishing in Parfet Park beside gushing Clear Creek, the Golden Gallop will lead its runners on 5k and 10k loops. The Golden Gallop is the annual fundraiser for the Golden […]

St. Jude Walk/Run

Auraria Tivoli Quad 1000 Larimer St, Denver, CO, United States

Event Description: St. Jude Walk/Run is a family friendly 5K event, taking place at Dick’s Sporting Goods Park on September 23rd. Participants come together during Childhood Cancer Awareness Month to help support the lifesaving mission of St. Jude: Finding cures. Saving children®. Other details: Registration is free and participants are encouraged to share their fundraising page […]

Free

Oktoberfest Fun Run

Twisted Pine Brewing Company 3201 Walnut St, Boulder, CO, United States

Oktoberfest, is the world's largest Volksfest, featuring a beer festival and a travelling fun fair. It is held annually in Munich, Bavaria, Germany from mid or late September, to around the first Sunday in October, and it is a 16 to 18 day folk festival. Oktoberfest is an important part of the Bavarian culture, having […]

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