— Mika Valentine, 3, of Cumberland prepares to race at Riverside BMX at the Mason Sports Complex in South Cumberland on Saturday. Valentine was one of 156 racers attempting to qualify for the Maryland state championships. Russell Keller said Saturday’s turnout was the largest he’s seen in his eight years as track director. At left, Nathan Hartlove, 13, carries the American flag during the parade lap after the national anthem was played. It was Hartlove’s birthday.