This invention is a billiard/pool ball rack assembly consisting of a triangular rack and a detachable bottom plate and when joined, serves as a tray to encase the balls that can be hand-filled or gravitational filling. When racking the pool balls, the unit is placed on the playing surface then the bottom plate is released from the triangle while the triangle along with the balls are rolled off the plate to the racking spot and the bottom plate which is now serving as a measuring guage and is resting at the foot rail. Then the triangle with balls are backed up against the bottom plate and the triangle is lifted away from the balls for an most accurate racking.