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The 2022 Grizzly Peak Century was held on Sunday May 1, 2022.

Late Breaking News!

We have received permission to use a new section of the San Francisco Bay Trail between Pinole and Rodeo. This replaces a busy, hilly, and traffic-signaled part of San Pablo Avenue with a flat, beautiful, multi-use trail along the bay!

This change affects only the 75 mile and 100 mile routes. When you get to this section, be sure to slow down, be courteous to other trail users, and enjoy the view. Please don't jeopardize our future use of this great resource!

Follow the Routes link above to see the details of the new routes.


The main start/finish and post-ride meal location is Campolindo High School, 300 Moraga Rd, Moraga, CA. Parking at Campolindo is limited, so if you are driving there, please try to carpool with other riders if you can. We also offer a car-free alternative start in Tilden Park. For details on both options see our Start Locations page.

Start Times

Rider check-in is 6:30 am to 8:30 am at Campolindo (7:30 to 10:00 am at Island Picnic Area in Tilden Park if you use the alternative car-free start). We urge slower riders to get an early morning start.

Route Options

There are three routes to choose from, all of them very hilly: 50 miles, 75 miles, and 100 miles. The latter two routes are identical for the first 73 miles (the north loop), at which point the 75 mile route returns to the finish while the full century route continues on to the south. For more information see the Routes page.


Entry fees for 2022 range from $80 (early registration) to $100 (century day, if available). The ride is limited to 1,000 riders and has sold out for many years, so you should register early if possible.

Donations (Where does my fee go?)

We donate most of the proceeds raised from our century to organizations and causes that promote or help bicycling in some way — be it advocacy, safety, education, awareness, or the bicycling environment. See our donations page for details.

T-shirt art from the 2018 Century
by Stephen Linden


  • Your choice of three beautiful routes
  • Cue sheet and road markings
  • Rest stops at 15 - 25 mile intervals
  • Clothing drop at the first rest stop (Island Picnic Area)
  • Basic mechanic service at all rest stops
  • SAG vehicle support
  • A fabulous post-ride barbeque
  • A souvenir pair of GPC Century socks

Other Items For Sale

See our Merchandise page for information on custom designed T-shirts which can be ordered with your registration.

Century Prep Rides

Join us for a series of nine rides for intermediate bicyclists who want to build stamina and increase range. The rides will be on consecutive Sundays, beginning March 1, and will gradually progress in distance from about 25 to about 55 miles. All are over moderately hilly terrain, similar to that of the century. Those who complete the series should be well-prepared to ride at least the 75 mile (metric century) route. For more information see our Century Prep Series page.

Let our motto be your guide
Ride to Eat and Eat to Ride!