California International Marathon California International Marathon The California International Marathon (CIM) is a 26-mile, 385-yard road race in Northern California organized by the Sacramento Running Association. The course follows a historic gold miners' round beginning at Folsom Dam, passing through suburban Sacramento, and ending at the State Capitol. The race starts at an elevation of 366 ft. and finishes at an elevation of 26 ft. In 1983, marathoner John Mansoor and entrepreneur Sally Edwards organized the first CIM to be an Olympic Marathon Trials qualifier. CIM served as the United States National Marathon Championship for men in 1984 and for women in 1984,
Antarctic Ice Marathon & 100k ultra race the Antarctic and experience anything from subzero temperatures to 24 hours of daylight while there. Antarctic Ice Marathon & 100k ultra race The Antarctic Ice Marathon was established by Richard Donovan / Polar Running Adventures to enable marathon runners to complete a marathon on all seven continents. It also enables athletes to complete the marathon grand slam - a marathon on all seven continents and the North Pole. Runnings of the Antarctic Ice Marathon and 100 km race have taken place at 80° south just a few hundred miles from the South Pole at the foot of the Ellsworth Mountains.