- 19 名前：名無しさん＠実況は実況板で mailto:sage [2007/10/04(木) 19:49:26 ID:lH75xZB/]
- >>11
天然芝でもいっしょでしょ。
ドルフィン・スタジアム
www.baseball-reference.com/bullpen/Dolphin_Stadium
＞The park features a pitcher's mound that can be raised and lowered
＞below the field, helping in the park's conversion from baseball to football.
R.F.K. Stadium
en.wikipedia.org/wiki/Robert_F._Kennedy_Memorial_Stadium
＞dropping the hydraulic pitcher's mound 3 feet into the ground
