2023 All-Out Spring Fever 5K, 10K and Half Marathon

Register for 2023 All-Out Spring Fever 5K, 10K and Half Marathon

From the base of Table Mountain and Colorado's spectacular foothills, All-Out Multicourse presents our 11th annual Spring Fever from Jefferson County's NAAC Stadium… easily accessible from several nearby highways. Along with its Endless Series sidekick in October… Kooky-Spooky, these 5K, 10K & Half Marathon courses will hug the shores of Arvada's Blunn Reservoir via the Ralston Creek Trail and will challenge the beginner and veteran athlete alike! Wear your favorite St. Patrick's Day gear and celebrate sláinte! 


Don't miss out on discounts and the custom finisher award by completing the Run Amok Spring Series! Click on Series Perks above for more info.
Select Category
This category is included in the Run Amok Spring Series bundle. Register for the Bundle »
$35.00 through December 20th, 2022
$45.00 through March 6th, 2023
$50.00 until registration closes
$35.00 $50.00
This category is included in the Run Amok Spring Series bundle. Register for the Bundle »
$30.00 through December 20th, 2022
$40.00 through March 6th, 2023
$45.00 until registration closes
$30.00 $45.00
This category is included in the Run Amok Spring Series bundle. Register for the Bundle »
$45.00 through December 20th, 2022
$55.00 through March 6th, 2023
$60.00 until registration closes
$45.00 $60.00
This category is included in the Run Amok Spring Series bundle. Register for the Bundle »
$35.00 through December 20th, 2022
$45.00 through March 6th, 2023
$50.00 until registration closes
$35.00 $50.00
This category is included in the Run Amok Spring Series bundle. Register for the Bundle »
$65.00 through December 20th, 2022
$75.00 through March 6th, 2023
$80.00 until registration closes
$65.00 $80.00
This category is included in the Run Amok Spring Series bundle. Register for the Bundle »
$45.00 through December 20th, 2022
$55.00 through March 6th, 2023
$60.00 until registration closes
$45.00 $60.00