GMR Backyard Ultra
- Date
- May 23, 2026
- Distance
- GMR Backyard Ultra
From the Organizer
Date: 5/23/26
Time: 10:00 AM (check-in starts at 9:00)
Cost: $50.00 + Recommended minimum $25.00 Donation
Non-Profit Recipient: Sun Valley Kitchen and Community Center
The backyard Format: Run one every hour until only one runner remains. Every lap starts at the top of the hour, so you can choose to run your lap fast and get rest in between or run slow and save your energy. This is intended to be a fun event with friends. Come do one lap, or push yourself to the ultra distance if you chose. 4.17 mile lap
Registration is limited to the first 60 signups. The cost is $50. We also recommend a minimum $25 Donation to Sun Valley Kitchen and Community Center. The registration fee will be used to supply aid station items, awards and temporary bathroom facilities (port-a-potties).
Distances & Pricing
Race Location
About This Sport
From Endurance Grid's Founder
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.
Coming Up
More running races in CO
Vallecito Lake Heavy Half
Half Marathon
Sierra's 5K Run/Walk Race Against Meningitis
5K
July 23 - Beginner / Advanced @ Cheyenne Mountain State Park
Run for PB& J 5K/10K/13.1 DENVER/AURORA
Half Marathon · 10K · 5K
Frequently Asked Questions (FAQs)
- What is the GMR Backyard Ultra?
- GMR Backyard Ultra is a running event held in Golden, CO. Learn more about the different endurance sports here.
- When and where is the GMR Backyard Ultra?
- Saturday, May 23, 2026 in Golden, CO at Address to be supplied after registration, Golden, CO. Check the official event page for exact start times and wave schedules.
- How do I register for the GMR Backyard Ultra?
- Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.
GMR Backyard Ultra
May 23, 2026