All-Out Spring Fever
Updated
Sunday, March 21, 2027, first start 9:00 AM, in Golden (19500 W 64th Pkwy). Distances: 5K, 10K, Half marathon. Entry from $40 to $70; the Half marathon goes from $70 to $80 after December 22.
- Date
- Sunday, March 21, 2027
- Start time
- 9:00 AM (earliest wave)
- Location
- 19500 W 64th Pkwy, Golden, CO 80403
- Area
- Foothills & Mountains, Denver & Boulder
- Distances
- 5K10KHalf marathon
- Course
- Trail (dirt or single-track on at least part of the course)
- Price
- $40 to $70 plus the platform's processing fee
- Next price increase
- Tuesday, December 22, 2026: Half marathon $70 → $80
- Registration
- Open. Opened March 22, online signup closes Sunday, March 21, 2027
How to register
Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details. Sign up by December 22 to pay $70 instead of $80.
Course and race notes
All-Out Multicourse is proud to host our 15th Annual Spring Fever, a rewarding event for both novice and experienced athletes set against the backdrop of Table Mountain and the stunning Colorado foothills.
From the race's own listing. Check the race website for the course map and parking.
Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.