A ball throwing practice system for improving a ball player's skills that includes a collapsible support frame having a first pair of legs and a second pair of legs, with the second pair of legs being pivotally coupled to one of the first pair of legs to permit pivoting of the second pair of legs with respect to the first pair of legs. The system also includes a target assembly secured to the support frame for defining a passage therethrough for representing a zone for an accurately thrown ball to pass through. Preferably, the target assembly comprises a pair of substantially horizontally oriented plate members disposed in a spaced relationship, with a lower one of the plate members being located below an upper one of the plate members. The lower plate member may be suspended below the upper plate member by a plurality of cords. Each of the plate members may have a central aperture therethrough which is defined by an inner perimeter of each plate member, and an outer perimeter of each plate member may be substantially parallel to the inner perimeter.