West Coast Gravel

Best Of The Bay Double

October 04 2025
Castro Valley California USA
Date Confirmed
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Distances: 200 miles, 14,800 feet
Difficulty: Ultra Distance and Climbing for events well over 100 miles
Limited to: 250 Participants
Our event includes an official CTC double century as well as a single century option. Both rides start and finish in Castro Valley, California.
 
Our double century route has three segments. It offers an experience filled with many of the best and most memorable cycling roads showcasing the San Francisco Bay Area.
 
The first segment has many small climbs and descents heading north to Grizzly Peak and back.
 
The second segment is the most challenging part of the route, as you climb and descend Mt. Diablo - a cycling highlight of the entire Bay Area.
 
The third and final segment of the double century ride travels to these other great cycling destinations in the Bay Area: Sunol-Ohlone Regional Park, the Livermore vineyards, and the foothills of Mt. Diablo. The final 60 miles are less demanding, resulting in a finish without any significant challenging climbs.
 
Our single century is a part of the double century route and includes Mt. Diablo, Las Trampas Regional Wilderness, and Sunol-Ohlone Regional Park.

Best of the Bay 2017

 

 
Start Located At: United Methodist Church 19806 Wisteria St, Castro Valley, CA 94546
 
 
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510-394-8684
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California Triple Crown Event for Double Century

 
Facilities
Parking
Changing Rooms
Pre-Packet Pickups
 
Support for Participants
Route Signposted
Route Card
Emergency Contact No
SAG Wagon
Mechanical Support at Rest Stops
 
Nutrition
Feed / Aid Stations
Post Event Meal(s) Provided As Part of Entry
 
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Oct 04 2025 - EVENT: Best Of The Bay Double