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Events for October 11, 2026

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Breckenridge Road Marathon

Breckenridge Recreation Center 880 Airport Road, Breckenridge

Join us for an unforgettable two-day running experience in the heart of Breckenridge! Our RunFest Weekend kicks off Saturday with a 5K, 10K, along Main Street, followed by the Half […]

Westy Half and 5K

Westminster Promenade 10600 Westminster Blvd, Westminster

Join the WESTY HALF and 5k this fall! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. This […]

$45 – $80

Breakthrough T1D Walk

City Park - Denver 2001 Steele St, Denver

As the leading global type 1 diabetes (T1D) research and advocacy organization, Breakthrough T1D has played a crucial role in nearly every major T1D breakthrough in history. No organization does […]

Durango Marathon

Santa Rita Park Camino Del Rio, Durango

The inaugural Durango Marathon, Half Marathon, and 5k debuts on October 11, 2026, and you are invited to experience one of Colorado’s most beautiful mountain towns at the height of […]

Run the Rocks

Red Rocks Amphitheatre 18300 W Alameda Pkwy, Morrison

Celebrating our 21st year, the American Lung Association in Colorado proudly offers the only timed-race event at the iconic, gorgeous Red Rocks Park & Amphitheatre. This unique run/walk challenge combines […]

EDT XC Showdown

Aurora Sports Park 19300 E Colfax Avenue, Aurora

Whether you run for a team, as an individual, or you just want to try out the experience of running a cross country race, you are welcome to join us […]

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