Abstract: A system to releasably anchor a post at a predetermined location on a playing surface comprising a hollow, upright post to be releasably anchored at the predetermined location on the playing surface having a bottom on the playing surface and a top remote from the bottom and the playing surface; a hollow, frustoconical member disposed within the hollow, upright post adjacent the bottom to anchor the hollow, upright post to the predetermined location on the playing surface and to enable a quick release of the hollow, upright post when forceful contact is made with the hollow, upright post; and an arrangement connected between an interior of the hollow, frustoconical member and the playing surface to secure the hollow, frustoconical member to the predetermined location on the playing surface.