The Colfax Marathon is a premier marathon, half-marathon, 10 mile, five-person Marathon Relay race and 5k which will be held on May 19, 2013. Established by the cities of Aurora, Denver and Lakewood to encourage Coloradans to be healthier, the marathon has established itself as an iconic race for the mile-high city. They support local charities and nonprofits by providing one of the country’s biggest fund-raising platforms through their Charity Partners Program. In 2010 over 1060 runners chose to run and raise pledges for a total of 41 charity partners.