Woodside Ramble

Woodside Ramble is a trail event held in Redwood City, California, on December 19, 2026. Four distances are on the schedule: a 50K (31 miles) and a 35K (about 22 miles) both starting at 8:00 a.m., a trail half marathon (13.1 miles) at 8:30 a.m., and a 10K at 9:00 a.m. The staggered starts spread the field out before the longer and shorter courses converge.

All four courses are run off road, so train on trails rather than only on pavement and expect your pace per mile to sit well off your road times. The 50K suits ultrarunners with a base of long weekend efforts; the 35K is a good step up for someone who has raced a road marathon; the half and the 10K work as an introduction to trail racing without a full ultra build.