Skyline 50k Endurance Run

AUG
1
2027
A scenic trail event from Lake Chabot Marina offering a 50K loop and a half marathon with staffed aid stations and a plant based finish festival.
Sun 1 Aug 2027
50 kilometers Half Marathon

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Skyline 50K Endurance Run

Skyline 50K is an annual trail running event based at Lake Chabot Marina in Castro Valley, California. The main race is a 50K loop that travels through East Bay Regional Parks and reaches Moon Gate. A half marathon also runs on a looped course that starts and finishes at Lake Chabot Marina.

  • 50K Endurance Run
  • Half Marathon

The event features staffed aid stations supported by local Bay Area running groups, a Volunteer Safety Patrol at key intersections, and radio communications handled by volunteer ham radio operators. Runners receive a race shirt, Skyline socks, and a finishers medal. Awards are given to overall winners and three deep by age group.

The finish area includes plant based BBQ and beer, and the race is presented as a plant based event. Families are welcome. Training runs are free and self supported; training announcements are shared through the event Strava club.

Skyline participates in the P USATF Grand Prix and is listed as a UTMB Index event. Bib pickup is available at a nearby Sports Basement location or on race day, and someone may pick up a bib for another entrant. Refunds are not generally offered; outside 30 days entries may be deferred, and no deferrals are allowed within 30 days of race day. Visit the organization's website for the most recent information.

50 km
50k
Half Marathon
Half Marathon

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