Running races in or near Lyons, CO
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Lyons, CO area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.
16 and under 10K - Individual Age group/open
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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Senior (60+) 10K - Individual Age group/open
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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2026 Eerie Erie
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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16 and under 5K - Individual Age group/open
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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Adult (17+) 5K - Individual Age group/open
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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Senior (60+) 5K - Individual Age group/open
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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Adult (17+) 10K - Individual Age group/open
Organization: Optimist Club of Erie, Colorado
Date of Race: 10-31-2026
Description: The world-famous Eerie Erie is a Halloweenthemed 5k and ...
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Nov: Neighbor Nights- Community Service Night
Organization: Thompson Rivers Parks and Recreation District
Date of Race: 11-13-2026
Description: Description
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Snobahn Summer Training
Organization: Lake Eldora Racing
Date of Race: 05-31-2027
Description: We have changed the Snobahn options, please read the descriptions below ...
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Complete list of running events in and near Lyons, CO: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Lyons
About Lyons
Lyons (CO) is a town in Boulder County with an estimated population of 2,033.[4]
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In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
