A lightweight backstop, equipment set, method of defining a playing field and method of playing a baseball related game is provided. The invention integrates a ball stopping backstop, attached strike zone, foul line ropes and base hit markers with methods and means for defining and marking a playing field scaled to the size and number of players. A separate strike zone is attached to the backstop by means allowing the players to quickly change the vertical position of the strike zone and acoustical responses generated by balls hitting the strike zone. Players may also adjust the sound generated by balls missing the strike zone, but striking the backstop net. One embodiment of the disclosed game eliminates base running and ball throwing near batters after the ball has been struck. The entire equipment set is light weight, easy to move, and simple to assemble.