The Great Cow Harbor 10-Kilometer Run is a 10-kilometer (6.2 mi) road running event held annually in the Long Island village of Northport, New York, on the third Saturday each September. The race is co-organized by its organizing committee (The Great Cow Harbor 10-Kilometer Run, Inc.), the Northport Running Club, and Northport American Legion Post 694. The title sponsor is Capital One Bank. Proceeds from the race benefit several local charities as well as the Special Olympics of Long Island.