Outfield wall — left field line → right field line

Twelve fixed panels: triples in the corners, doubles in the field, three singles scattered, four outs filling the left-center and right-center gaps, and the home run walled in at dead center. Panels never move — only their widths change, as each outcome's odds drift about five points either way every batter. Splitting an outcome across several panels doesn't change its odds, just where you can find it. Dead-on contact splits center; swing early and a righty yanks it toward left, a lefty toward right.