GMR Backyard Ultra
Ultra · 4.2 mi
May 23, 2026 · Golden, Colorado, US
Listed Mar 12, 2026
Run Vibes summary
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Original listingFull description from sourceTap to expand · same text as on RunSignup / the official listing▾
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).
Related races
More events in Colorado, and comparable distances or challenge.
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
10 Mile · 10 mi · 20 mi · 40 mi · Marathon
3/29/2026 · Thornton, CO
Listed Dec 30, 2015
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source
AI summarization pending
We haven’t generated Run Vibes’ quick-read summary for this race yet—it’s in the queue and will show here when ready.
Full listing on the race page · official details from the source