Trail

Skyline 50k Endurance Run

📅 August 1, 2027📍 Castro Valley · United States

Available distances

13 mi31.1 mi

About

Skyline 50k Endurance Run is held on August 1, 2027, in Castro Valley, California. The 50K (31.1 mi) starts at 7:00 a.m. and a 21 km (13 mi) option at 8:30 a.m. No elevation gain is listed.

The East Bay hills are steep and largely unshaded, and August in the region means a hot afternoon for anyone still out on the 50K after midday: plan on carrying more water between stations than a cooler-weather ultra would need. If it is your first 50K, use the 7:00 a.m. start to bank the early miles at a conservative effort — the cool hours are worth more here than any late surge.

Highlights

Forest
High altitude
Mountain
Off-road
Lakes and ponds

D-320

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Races nearby

Other upcoming races around Castro Valley.