The mark comprises a uniquely shaped rectangular segment on the back of a jacket extending from the shoulder area downwardly toward the bottom of the jacket. A series of spaced apart, parallel horizontal linear markings and the numbers 10, 20, 30, 40, 50, 40, 30 20 and 10 extend across the rectangle. A rounded football is positioned vertically and inwardly of the sides of the rectangle. A rounded football is also located near the elbow on the outer surface of each of the sleeves of the jacket. A generally rectangular band extends around the elbow portion from the outer edge of each side of the football on the sleeves, the band having a series of parallel, horizontal lines therein.