Abstract: There is disclosed a calculating and recording device of the slide rule type for determining and retaining play statistics of a football game. The device has a body bearing at least one, and preferably two, coextensive grooves, each of which can receive a slide which is calibrated in indicia of arithmetic progression coextensive with the length of the slide. The rule includes removable marker means each bearing an indicium of a single class of a plurality of distinct classes of indicia representing plays or types of plays of a football game and the body of the rule has at least three parallel rows of receiver means in arithmetic spacing equal to the spacing of the indicia of the slide which receive the removable marker means to record passing, rushing and first down statistical information.