Abstract: This invention relates to a new billiard ball rack for holding billiard balls, for playing billiards, pool or any other game utilizing billiard or pool balls in which the rack is formed of three arms interconnected together in a triangular shape by rotating hinges at two of the angles of the triangle and a ball and socket joint at the third angle which is adapted to pop open upon insertion of the last ball. Each hinge is composed of a dowel rotatingly supported within a washer assembly. Located about each hinge is a biasing spring exerting a continuous bias tending to position the rack in the closed position.