Born of necessity and forged in competition, Rhesus is the new benchmark of race timing for event promoters of all types and sizes. Created by Bike Monkey, the team that needed a better system to bring nearly 20,000 people across their own finish lines, this timing software can run off state-of-the-art RFID chips and mats equipment to reliably track thousands of racers down to the fraction of a second or allows for manual entry of smaller numbers of participants as they finish. Results can be processed instantly thanks to the Chrome V8 engine and the entire system can be run offline on a simple laptop.

Your event’s primary product is your customer’s finish time. Rhesus puts you in charge of that product and makes it easier and cheaper to deliver it than ever before.



Access4Bikes is your political voice for trails in Marin County. There are more than 40,000 adult mountain bike enthusiasts in Marin County alone! Access4Bikes needs the entire mountain biking community to become involved and participate in the process of opening new singletrack trails in Marin, rehabilitating existing trails and helping to elect local officials that believe in equitable access to the public trails for all recreational users groups.


The Bicycle Trails Council of East Bay was formed in 1987 to promote safe, responsible mountain biking. The BTC is dedicated to the acceptance of mountain biking as a legitimate and environmentally sound use of the land. The BTC works to educate bikers, as well as other users, of local regulations and proper trail etiquette.The BTC serves as an advocate for the mountain biking community. We organize and direct efforts by mountain bikers to become involved in the conservation, administration and maintenance of the public lands of Marin. The BTC meets with the various land agencies and is politically active in supporting our belief that mountain bikers should be treated as equal members of the outdoor user community. The BTC is an all volunteer organization that depends completely upon the involvement of our members. Please join us in our efforts to keep the public land open to us.
Foster Calmhas teamed up with the NorCal League to help our coaches, co-coaches, ride leaders and volunteers gain the confidence and the skills to handle a first aid emergency when out on a bike ride.Foster Calm provides our coaches with the opportunity to get Wilderness First Aid Certification that is specific to mountain biking, which is a unique opportunity that we are proud to offer. The emphasis on the WFA classes that Bobbie teaches is  on making good decisions by staying calm and safe. We focus on learning a system that will help you stay focused and calm. Coaches and League affiliates learn and practice hands-on principles in these courses.Foster Calm is dedicated to providing quality, low-cost first aid and leadership classes to individuals and groups, especially nonprofits.
The International Mountain Bicycling Association(IMBA) is a 501 (c) 3 non-profit educational association whose mission is to create, enhance and preserve great trail experiences for mountain bikers worldwide.Since 1988, IMBA has been bringing out the best in mountain biking by encouraging low-impact riding, volunteer trailwork participation, cooperation among different trail user groups, grassroots advocacy and innovative trail management solutions.IMBA’s worldwide network includes 35,000 individual members, more than 750 bicycle clubs, more than 160 corporate partners and about 600 retailer shops. IMBA’s members live in all 50 U.S. states, most Canadian provinces and in 30 other countries.
The Marin County Bicycle Coalition(MCBC) has been steadily improving Marin county’s road and path facilities for walkers and bikers since they formed in 1998. The impact of their advocacy efforts is visible in each of Marin’s towns: permanent bike racks, bike lane striping, green-and-white bike route signs, road resurfacing, ‘sharrow’ road stencils, and so much more.MCBC’s work improves Marin County quality of life in many ways:

  • increased opportunities for daily physical activity,
  • teaching your children to be skilled and safe bike riders,
  • reduced road congestion and greenhouse gas emissions,
  • transportation equity for our low-income neighbors

Their goal is for 20% of all trips in Marin to be made by walking or bicycling by 2020. You can help – visit MCBC and join today!

PastedGraphic-1  The Body Positive is a nonprofit organization that teaches people how to overcome conflicts with their bodies to lead happier, more productive lives. They have been working for 18 years to end the harmful consequences of negative body image, including: eating disorders, compulsive exercising, smoking, drug and alcohol abuse, self harm and dating violence. The Body Positive is partnering with NorCal to prevent poor body image and easting disorders in athletes through a training at the winter Leaders’ Summit and with written materials that can be found on the Coaches Resources page of this site.
Founded as a non-profit within the Stanford University Athletic Department in 1998, Positive Coaching Alliancehas the mission of “transforming youth sports so sports can transform youth.”  To that end, PCA has conducted roughly 5,000 live group workshops nationwide for more than 200,000 youth sports leaders, coaches, parents and athletes.  Workshop attendees have helped create a positive, character-building youth sports environment for more than 2.2 million youth athletes.PCA trains Double-Goal Coaches®, whose first goal is winning, and whose second, more-important goal is teaching life lessons through sports. This coaching method takes its name from “The Double-Goal Coach,” a book by PCA Founder and Executive Director Jim Thompson.
Hilride Progression Development Group, LLC ( is a consulting firm based in Berkeley, California. Hilride is dedicated to realizing the potential of the global mountain biking movement as a force for economic development, environmental conservation and the promotion of healthy, active communities. Hilride provides strategic planning, design and development services for government agencies, non profit organizations, corporate and private clients around the world. Hilride has consulted on a diverse range of projects from regional tourism development for the country of Croatia, Department of Tourism; to trail design and planning for the Hawaii Department of Natural Resources, Marin County Parks and Open Space and the East Bay Regional Park District; to municipal bike park development for the cities of Lafayette, Elk Grove and Fresno California; Redmond, Washington and Green River, Wyoming and lift access resort development for Schweitzer Mountain Resort in Sandpoint, Idaho and Moonlight Basin Resort in Big Sky, Montana; to film and video projects for the Outdoor Alliance, the International Mountain Bicycling Association and the National Interscholastic Cycling Association.
Marin Cyclists are cyclists from all over the Bay Area who share the love of cycling. The Marin Cyclists Road Club provides an environment for cyclists to meet other cyclists and experience the beauties of Marin County and the surrounding Bay Area, together. They offer organized rides during the weekend and shorter rides during the week.
WCA_logo_st The Mission of the Women’s Cycling Association is to develop, maintain, and support a network of women cyclists and supporters of women’s cycling. The WCA will work to advance the interests of women cyclists by developing and advancing policies with governing bodies and engaging in media outreach. 
pelo-logo Pelo Fitness, LLC is trying to ensure that every High School cyclist in Northern California has the clothing they need for training and competing in the Norcal High School Racing League Mountain Bike races. With specially designed drop boxes at Pelo Fitness, bike shops and other local businesses throughout Marin County, they’re tapping into the thousands of area cyclists who can easily afford to part with some of their forgotten jerseys, shorts and other cycling-specific clothing. “It’s easy to assume that all the kids in this area have the means to get everything they need to race,” says Alan Roberts, Founder and Owner of Pelo Fitness. “Between a bike, helmet, shoes and a team uniform, the cost to participate can be tough for many Northern California families. Providing these kids with some good quality gear to train in makes a big difference.”


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