Abstract: Platform paddle tennis court including suitable base support structure, marginal enclosing taut screening and a platform deck. This deck may be made up of a plurality of parallel, hollow deck panels extending in one of the directions of transversely and longitudinally of the usual court area and defining at least one section or one of a plurality of sections, which may constitute a deck portion margined on one side by the central transverse net line. Each deck panel is substantially rectangular in cross section and defined by lateral top and bottom sheets and laterally-spaced upright side sheets of heat transfer material successively connected together along meeting corners thereof in substantially fluid-tight joints for defining together an elongated, hollow, tubular duct-defining interior.

Abstract: Garment-supportable tennis ball pocket including an ovally-open circumambient and lateral rim of relatively stiff, flexible material, e.g., plastic, having elastic recovery memory and with a pair of generally opposite sections thereof forming non-circular bights with opposed sides of each such bight positioned more closely toward each other than the sides of the opposed pair of intervening sections and with the latter defining arcs of appreciably lesser curvature.