All-Out Spring Fever
- Date
- March 21, 2027
- Location
- 19500 W 64th Pkwy, Golden, CO
- Distance
- Half Marathon · 10K · 5K & more
From the Organizer
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. This spring celebration, featuring our mascot Buzzby, includes 5K, 10K, and half marathon courses that trace the scenic shores of Arvada's Blunn Reservoir via the Ralston Creek Trail. Conveniently accessible from nearby highways, Spring Fever is the endless series spring counterpart to Kooky-Spooky, and proudly benefits our NEW charity, People and Pollinators Action Network (we really love the bees). And don't miss that you can use Spring Fever to qualify for your BOLDERBoulder wave!
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
55°
Typical Low
30°
Chance of Rain
19%
Based on US Climate Normals data from Lakewood, 6 mi from the venue.
Host City
About Golden, CO
Elevation
7,216 ft
Nearest Airport
BJC
Rocky Mountain Metropolitan Airport · 15 mi
Major Hub
DEN
Denver International Airport · 31 mi
Time Zone
Mountain Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at All-Out Spring Fever, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Golden, CO
All-Out Summer Breeze
10 miles away
The Triple Bypass
9 miles away
Spirit of the West 5K Run/Walk
5K
Less than a mile away
All-Out Runapalooza
10 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the All-Out Spring Fever?
- All-Out Spring Fever is a running race held in Golden, Colorado on March 21, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the All-Out Spring Fever?
- Sunday, March 21, 2027 in Golden, Colorado at 19500 W 64th Pkwy, Golden, CO. Check the event page for exact start times and wave schedules.
- How do I register for the All-Out Spring Fever?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
All-Out Spring Fever
Mar 21, 2027