Quad Dipsea

Rush

Mill Valley, CA · 28.4 mi

Registration window

Registration opens Aug 1

Registration opens August 1 — first come, first served, capped field that moves to a waitlist quickly. Not a lottery (distinct from the more complex, invite-heavy Dipsea Race).

Opens: August 1, 2027

Confirmed date

Key info

Official website

28.4 miles

Rush registration — first come, first served

Four legs of the famous Dipsea trail back and forth between Mill Valley and Stinson Beach, CA — one of the oldest trail races in the US.

Go to official application page

Sign in to see full race details

Exact dates, the official application link, and calendar sync are free once you create an account — no credit card required.

Race Agent is an independent, unofficial tracker and is not affiliated with Quad Dipsea or its organizers. Registration dates change without notice — always verify on the official race site before relying on this information.