Bay to Lake 2025 Info

About Bay to Lake:

What is this?

Bay to Lake is an annual not-for-profit 60 mile (100km) relay race in the San Francisco Bay Area. Tell your friends!

When is it?

A Saturday in middle September, starting early, usually ending around 4pm, with optional bbq and overnight afterwards

How much does it cost?

$40-50

How many per team?

Maximum 8 runners, and optionally 2 support staff per team (10 maximum)

What distance do I run?

Most athletes run between 10-13 miles (16-20km) over the course of the day. But there is not maximum or minimum per runner.

What are the rules?

How does this sort of race work?

Before the race

  1. Sign Up then join a team or create a team.
  2. Join your team's groupchat and the main bay to lake chat

During the race

  1. Send off your first runner from the starting point.
  2. The rest of the team will drive to the first checkpoint.
  3. Once the runner reaches the first checkpoint, you will send off the next runner.
  4. You continue to leapfrog like this until the finish line.

After the race

  1. We have a party and barbecue
  2. You can stay overnight at the campsite (optional) or drive back home

How do I contact an organizer?

Email baytolake@hazybridge.com or text 657-229-2278. For issues with the website you can submit this support form