how big is flat track derby track
these are the rough dimensions of a regulation WFTDA/MRDA roller derby flat track. (Calculated from the Official Track Design ) The length of a WFTDA track is (17.5 * 2) + (12.5 * 2) + (14 * 2) = 88 feet. At any one point, a WFTDA track is no wider than (12.5 * 2) + 15 + 13 = 53 feet.