Skyline 50k Endurance Run
Castro Valley, United States • 2 Aug 2026
Event details
Skyline 50K is an endurance race organized by Scena Performance at Lake Chabot Marina in Castro Valley, California. The event is scheduled for August 2026. Distances offered include:
- 50K
- 21K (half marathon)
The course starts and finishes at Lake Chabot Marina (17936 Lake Chabot Rd) and follows a large loop through the East Bay Regional Parks toward Skyline Gate. Course maps, GPX files, and an athlete guide are available from the organizer.
Course support, logistics and policies
Organizers report regular aid station support from local running groups and a Volunteer Safety Patrol at key intersections. Bib pickup is available on a pre-race day at Sports Basement Berkeley (2727 Milvia St) and on race morning. Training runs are offered as free, self-supported events. All finishers receive a race shirt, special Skyline socks, and a finisher medal; awards are given to overall winners and three deep by age group. Skyline 50K is part of the P-USATF Grand Prix and is a UTMB Index event. Refunds are generally not offered; outside of 30 days entrants may defer to a future year or another Scena race, with no deferrals within 30 days. The finish area has included plant-based BBQ and beer in past years. Visit the organization's website for the most recent information.