True Pitch 318G Four Piece Game Mound The True Pitch 318-G is a full regulation 18’ fiberglass pitching mound. It can be ordered with or without AstroTurf. The 318-G mound meets all NCAA requirements. The mound features four individual interlocking sections which make assembly and portability easy. Three or four athletes is all it takes to carry the sections. Plus, they fit easily on a small maintenance trailer.