All routes begin and end at Tomales High and head east together through Chileno Valley, longer rides continue south to Marshall and
north to Bodega Bay. 

Specific routes will have maps available at the start and colored arrows will mark each route.

If you register online, you will receive an email acknowledgement. If you register by mail and would like a confirmation, enclose a self-addressed, stamped envelope. Be sure to include your phone number. We will take entries the day of the race, if we are not full. NO REFUNDS.

At the ride we will require you to sign a Liability Release Form. Parents or guardians will need to sign Medical Authorization and Consent Form. Please preview the forms before registering.

STARTING TIMES: at Tomales High School
6:30-8:00 a.m. for 100 and 67 rides
8:00-9:00 a.m. for 35 and 15 rides
Course closes at 5:00 pm. Post-ride food service ends at 5:30 pm.

A portion of the fees benefits the work of West Marin Senior Services

Per IRS Regulations: A charitable deduction is limited to the excess of the contribution over the value of the goods and services received. The lunch, gift bag and patch received with this donation are valued at $20. The donor should retain this letter in order to fulfill IRS substantiation requirements. Federal Tax ID #68-0239712

West Marin Senior Services gratefully accepts additional donations
Send check payable to:
WMSS - HOLSTEIN 100
P. O. Box 45, Pt. Reyes Station, CA 94956
Phone: (415) 663-8148, FAX (415) 663-1268

IF YOU WISH TO HAVE REGISTRATION FORM MAILED OR FAXED TO YOU, CALL US AT 415-663-8148.  WE'D BE HAPPY TO ASSIST YOU.

Voted the Best Century of 1996 by

Major Sponsors

2010 Sponsors

Click on sponsor links below

Studio Weeren

West County Design
Craig Collins Furniture

Bank of Marin

Genworth Financial

Horizon Cable, TV

McPhail Fuel Company

Real Goods Solar
Nicasio Valley Cheese Company
Bear Valley Inn
Star Route Farms
Clover Stornetta
Sacred Heart Church

Tony's Seafood

Dancing Coyote Beach

MALT

Frank Howard Allen Real Estate

Pt. Reyes Farmstead Cheese Company

Voler Custom Cycling Apparel

Palace Market

Little Organic Farm

Noah's Bagels
O'Donnell's Fairfax Nursery
Whole Foods Market
Alhambra Water

Peet's Coffee and Tea
United Markets

Laurie Sawyer, Artist

Brickmaiden Breads

Stemple Creek Ranch

Gu Energy

Comments by last year's riders

"You Rock!" ... “I’ve done the ride before. It’s the best ride in California” ... “It was all great. Quick, efficient check-in”
“Great ride! Great people!” ... “Improve? No way. Great job” ... “Volunteers, over the top fabulous!!”
“Party hats on the cows. More cow stuff. That’s why I came.”

"Route is so beautiful. Rest stops were numerous and well stocked and not crowded. Nice support staff”

“Exceeded my expectations.” ... “I had the feeling that the cattle were talking about me as I rode past. Please, tell them not to do that.”

We invite you to return to our website monthly for training tips, discounts through sponsor links and Holstein cow trivia.