Abstract: A portable basketball goal support system having a base, a ballast tank, and an arm for supporting a basketball goal support pole can be assembled in a compact configuration for shipping or storage and an expanded configuration for use. The support pole is mounted at a rear portion of the base and angled forward in the expanded configuration. In the expanded configuration, the ballast tank extends at least partially behind the support pole, while in the compact configuration, the ballast tank may be nested within portion of the base, thereby occupying less space. The support pole may be formed with a generally "pear"-shaped cross section defined by large and small curved portions connected by relatively straight sections, such that the large curved portion readily adapts to existing mounting hardware. One or more of the base, ballast tank, and support arm may be formed from plastic with a printed graphics sheet integrally molded therewith.