The event must be advertised for participation by the general public. The event must have a minimum of 20 finishers. The event must be a running event using running shoes. Roller blades, cross country skis, snowshoes or other running device aids are not accepted. Refer to the web site www.worldatlas.com/aatlas/world.htm for information on the geographic area of each of the continents. You must be an official finisher in a marathon (26.2 miles or 42.195K) or longer on each continent to qualify for the marathon division. You must be an official finisher in a half-marathon only on each continent (longer races do not count) to qualify for the half-marathon division. The course does not have to be certified. However, every effort should be made to measure the course as accurately as possible using a Jones counter, GPS, laser or other device.