A portable basketball goal assembly comprises a pair of collapsible backboard support mechanisms mounted in back-to-back relationship on opposite ends of a base. The support mechanisms fold inwardly on the base when collapsed and are offset so they overlap and lay side-by-side, thus providing a compact collapsed structure that can easily be transported on a struck. A brace mechanism connects and reinforces the support mechanisms when erected. Stacking support columns permit collapsed goal assemblies to be stacked together for shipping.
