The Nationwide Children's Hospital Columbus Marathon is a marathon held in Columbus, Ohio, United States. First run in 1978 and held annually since 1980, it features a flat, fast course which saw nearly 20 percent of finishers qualify for the Boston Marathon in 2010. The event has sold-out in mid-August the past eight years. There are 7,000 runners in the full marathon and 11,000 in the half marathon, making it one of the largest running events in the United States. Proceeds go to Nationwide Children's Hospital. 2018 marks the seventh year of this partnership; so far $7 million has been raised for the Hospital. This includes more than $800,000 contributed since 2012 by the Columbus Marathon Board of Directors.