Trail

Skyline 50k

📅 August 1, 2027 (estimated date)📍 Castro Valley · United States🏅 since 2017

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (August 2, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

31 mi13 mi

Races on the programme

Race	Distance	Elevation gain
50 Km	31 mi	4,692 ft
Semi Marathon	13 mi	—

About

The Skyline 50k takes place in Castro Valley, California, on August 1, 2027, on wild trails east of San Francisco Bay. Two distances are offered: the 50K (31 miles / 49.9 km), with 4,692 feet (1,430 m) of elevation gain, and a half marathon (13 miles / 21 km).

The route crosses unspoiled natural landscapes and secluded valleys, making for demanding trail terrain on the eastern side of the Bay Area.

Highlights

Off-road
Forest
Lakes and ponds

D-287

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Races nearby

Other upcoming races around Castro Valley.