All-Out Spring Fever
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All-Out Spring Fever
The All-Out Spring Fever is an annual running event held in Golden, Colorado, scheduled for March 22, 2026. Now in its 14th year, the race takes place at the base of Table Mountain and the Colorado foothills. The event is organized by All-Out Multicourse and serves as the spring counterpart to the Kooky-Spooky race held in October.
Participants can choose from several race distances:
- Half Marathon
- 10K
- 5K
- VIRTUAL Half Marathon
- VIRTUAL 10K
- VIRTUAL 5K
The courses are set near the NAAC Stadium and utilize the Ralston Creek Trail. The routes hug the shores of Arvada's Blunn Reservoir, providing scenic views of the surrounding natural landscape. The venue is accessible from several nearby highways, with the physical start and finish located at 19500 W 64th Pkwy in Golden.
This event is designated as an official BOLDERBoulder Qualifier. Runners can use their finishing times from any of the available distances to qualify for qualified waves at the BOLDERBoulder 10K. The race also supports a charitable cause, benefiting UpRoot Colorado, an organization focused on harvesting and redistributing surplus crops to increase nutrition security within the local community. Virtual options are also available for those who prefer to complete their chosen distance at a location of their choice. Visit the organization's website for the most recent information.
