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HomeRide Info

Saturday, August 4

Marin County, CA

Ride Information


We will announce our start location soon!

What's Provided

Here's what comes with participation in the ride:

  • One of the West Coast's most scenic and best-supported rides
  • Fantastic rest stop food options and a hot post-ride feast at our celebratory expo
  • Route marked by color-coded arrows
  • SAG support and assistance from the Marin Amateur Radio Club
  • CHP-patrolled course and assisted lane closures for rider safety
  • Water-resistant color map and water bottle



Ride Event Mileage* # of Rest Stops Total Climbing*  Experience
Half Metric 33 1 1,893 Novice/Recreational
Metric Century 65 3 3,947 Recreational/Experienced
Double Metric + 125 6 9,330 Experienced
Marin Century Classic 100 4 6,381 Recreational/Experienced
Mt Tam Century 100 4 8,374 Experienced
Mt Tam Double Century 200 9 15,962 Experienced

With the exception of the Mt Tam Century, all routes are designed to allow riders to shorten their ride back to the finish.
* Mileage and total climbing  are approximate and will be updated when final routes are determined.

Start Times



Start time

Mandatory Cut offs

Finish Time

 Mt. Tam Double  5:00 am Coleman Loop- 3:00 PM  10:00 pm

Double Metric+

6:00 am

Coleman Loop - NOON

6:00 pm

100 Tam

6:00 am

7:30 am Nicasio Valley Rd @ Lucas Valley Rd

6:00 pm

100 Mi Classic

7:00 am


6:00 pm

100 Km

7:00 am


6:00 pm

50 Km

8:00 am


6:00 pm


For information about the Mt. Tam Double Century please go HERE


Full color water resistant maps will be provided to all registered riders in their rider packets (for Concierge customers) or at the registration/packet pick up area on the morning of the ride.
RWGPS maps will be made available when the routes are finalized.  Follow us on Facebook and/or Twitter for updates.

Course Markings

Routes will be marked with (road) route arrows. However, the most reliable directions can be found on the reverse side of the map. The color of your route map and cue sheet will match the color of the course markings for your particular route. The tentative course colors (please check posted maps on ride day)are as follows:

Route Arrow Color
Half-Metric Century Blue
Metric Century Yellow
Double-Metric Century Orange
Marin Century Classic Green
Mt. Tam Century Purple
Mt. Tam Double Century Pink
Additionally, changes in direction will be marked with white signs at intersections. In recent years we found someone had removed a number of signs on the course. Signs are only an aid.

Lane Controls

For rider safety, CHP officers will be enforcing the following temporary lane controls (not road closures) to allow cyclists to pass:

  • 6:30-9 AM: Westbound lane on Lucas Valley Road from west of Westgate to Big Rock
  • 7:30 -10 AM: Northbound lane on Pt. Reyes-Petaluma Road from north of Nicasio Valley Road to the top of Rocky Hill


This is not a race. There is no winner.  Any rider seen to be operating their bike unsafely in any way, can and will be pulled from the ride and disqualified. Riders must have safe control of their bike at all times and must

  • Wear helmets at all times during the ride.
  • Be responsible for the safety and condition of their bicycle and cycling equipment.
  • Carry the following:
    • Driver's license or other form of ID
    • Medical release
    • Spare tube
    • Patch kit
    • Pump
    • Tire levers
    • Tools
    • Water bottles
    • Cell phone
    • Personal clothing
  • Sign the release form before starting the ride. Those under 18 years of age must have the form signed by a parent or guardian and must carry the medical release authorizing any needed treatment.
  • Be courteous to local drivers and respectful of traffic.
  • Obey all California vehicle code laws, including all stop signs and signals. Local authorities may cite violators.
  • Ride single file and stay right.
  • Announce “on your left” to all riders being passed.
  • Exercise extreme caution near all pace lines.
  • Safely stay as far right as possible or pull off the road if necessary to allow faster riders to pass.
  • Affix their rider number to their helmet and  bicycle and wear their wrist band for entry to the rest stops and the post-ride party.
  • Not attempt to have a private SAG vehicles. Riders with private sags will be disqualified.