Harford Sports Complex

Thomas Run Park is a multi-purpose sports park in Bel Air, Harford County, Maryland. It consists of a one lit all-grass regulation baseball field, one turf infield/grass outfield regulation baseball field, two lit 'skin' softball fields, a concession pavilion, Harford Stadium, basketball courts, and lit tennis courts. The fields are utilized by nearby Harford Community College, Harford Technical High School, and by community adult baseball and softball teams.

The baseball field was briefly home to the Atlantic League Aberdeen Arsenal baseball team, which ultimately was a low draw before the new franchise moved to Ripken Stadium. The expanded field had a capacity of about 2,000, which has since been dismantled back down to the original bleachers and walkways.

Harford Stadium was updated in 2007, and now features an artificial turf field for soccer and lacrosse, lights, a press pavilion, and seating for 1,000.