6th Annual Endurance Social at Rayback Collective – Boulder, CO

Don’t miss this upcoming event in Boulder, CO. Happening on Sunday, December 14, 2025 at Rayback Collective. Doors open at 5:00 PM.

An unforgettable evening where formal meets fitness and gather to support local athletes and raise funds for Boulder’s trail projects.

6th Annual Endurance Social

Come join us for an unforgettable evening where formal meets fitness in celebration of our vibrant athletic community. Dress to impress with a touch of sport as we gather to support local athletes and raise funds for Boulder’s trail preservation and outdoor programs. The event brings together endurance athletes, coaches, and ethusiasts along with some of the best local shops, stores, restaurants, providers, and community leaders who share a passion for performance and the outdoors. Every ticket directly fuels athletic development and protects the trails that inspire our training and adventures. Come dressed in your sleekest sneakers or sportiest suit or dress keeping our tradition of the “Bib’s and Blouses and Suits and Singlets” theme— Join us for this dynamic and enjoyable night! Move with purpose. Support our Community. Give with heart.

Date: Sunday Dec 14th 2025

Time: 5 PM (Mountain Standard Time)

Location: The Rayback Collective 2775 Valmont Rd, Boulder, CO 80304