Abstract: A slingshot-based training apparatus for propelling standard plastic apertured baseball or softball size projectiles along a desired curved trajectory. The present invention comprises a simplified portable, lightweight, hand-held pitching apparatus capable of safely hurling ubiquitous lightweight plastic baseball and softball size practice balls to a batter in training. The preferred embodiment comprises a rotatable grip to which a pair of offset yoke members are connected. These yoke members are also connected to opposed edges of a sling member through elongated elastic bands. Rotation of the grip offsets the yoke members so that one of the two yoke members is closer to the user than the other yoke member. Because grip rotation can be effected in either clockwise or counterclockwise directions, either yoke member can be offset to be closer to the user than the other yoke member.