2023 Centuries: August-November [updated 3/6/23]


5 Saturday. Marin Century. No information on the 2022 Marin Century yet. 100- and 62-mile courses. $110-$90. Registration opens mid-February is open.

6 Sunday. Civilized Century. $40. 100-, 75-, 60- and 35-mile routes. Registration opens June 1. Limited to 200 riders. Here’s the ‘new kid on the block’. The 100-mile route starts in Redwood City goes up to SFO and returns before crossing the Dumbarton and returning around the South Bay.

19 Saturday. Cool Breeze Century. 125-, 107-, 95-, 60- and 34-mile routes. A pleasant, not-too-difficult century down in Ventura county with great weather. Registration opens April 1 (no fooling’!) Limit of 2,000.


2?. Tour de Fuzz. More information in March. Limit of 1,250.

9-16 Sunday to Sunday. Cycle Oregon. 350 to 454 miles. $1,385. The best week tour on the West Coast. Limited to 1,350 and it always sells out quickly. This year’s route is big clockwise loop west of Salem. Registration is open.

9-10 Saturday to Sunday. Bike MS: Waves to Wine. $20 start fee. Ride from San Francisco to Rohnert Park. Minimum $350 fundraising. Currently limited information at website.

15- 17 Friday to Sunday. Eroica California. 108-, 81-, 73-, and 36-mile routes. $150. Limit of 1,500. Only ‘classic’ bikes—usually 1987 or earlier—are allowed. See site for detailed rules. Mixed terrain routes. Registration is open.

16 Saturday. Tour of the Unknown Coast. 100- and 62-mile routes. $100. Tour the redwoods in Humboldt County. Registration opens May 1.

23 Saturday. Napa Valley Ride to Defeat ALS. 100-, 62-, 47-, 28-, and 9-mile routes. $60. Minimum $150 fundraising. Registration fee and then minimum fundraising amount. 100-, 62-, 47-, 28- and 9-mile routes. Registration is open. Routes are pending approval.

30 Saturday. Lighthouse Century. $85. 100-, 75- and 50-mile routes. Limit of 1,000. San Luis Obispo Bicycle Club’s other century. From Morro Bay a detour inland before heading back to the coast and halfway up Highway 1 and back. Registration opens June 11.


1 Saturday. Best of the Bay. 200 miles. Date set but no information yet.

14 Saturday. Best Buddies Challenge. $100 start fee and $5,000 minimum fundraising. 72 mile route. No longer run along Highway 1 and now the route is a loop in west Marin. Registration is open.

21 Saturday. Foxy Fall Century. 100-, 100k, and 50k-routes. No information yet. Limit of 1,500. Registration opens in July.

21 Saturday. Tour de Lincoln. 100k-, 50k-, and 25k-routes. $76-$55. If Foxy Fall is too crowded for you, here’s a community ride just up the road in Lincoln. Registration is open but link is broken.

21 Saturday. Ride Santa Barbara. 100-, 62-, and 34-mile routes. $149-$69. It’s a longish drive south but Santa Barbara is a great place to do century with beach front views and fantastic climbs in the Santa Ynez Mountains including Gibraltar. Registration is open.

?. Tour of the Sacramento River Delta (TOSRD). No information yet. Annual ride from Brannan Island to Sacramento via the Delta on Saturday and return on Sunday. Stay at La Quinta near old town. Includes lunch on Saturday and a post-ride bbq on Sunday.


18 Saturday. Death Valley Century. $165. Limited to 300 riders. Route is a uncertain since in 2022 roads were damaged by rains and their repair in time for the event in unclear. Ride starts in Furnace Creek. Registration is open.