ピッチクロック！MLB新ルール導入へ

#マンフレッド　#時間短縮 　#リ.265

参考WEB記事
https://theathletic.com/3578254/2022/09/08/mlb-2023-rule-changes-pitch-clock/
https://www.baseballamerica.com/stories/what-the-minor-league-data-says-about-new-mlb-rules-changes/
https://www.baseballamerica.com/stories/pitch-clocks-shortened-minor-league-games-by-26-minutes-in-2022/#:~:text=Major%20League%20Baseball%20announced%20Friday,announcement%20comes%20as%20no%20surprise.
https://www.mlb.com/news/mlb-2023-rule-changes-pitch-timer-larger-bases-shifts
https://www.espn.com/mlb/story/_/id/34551173/a-15-second-pitch-clock-end-shift-need-know-mlb-2023-rule-changes
https://column.sp.baseball.findfriends.jp/?pid=column_detail&id=097-20210315-22
https://news.yahoo.co.jp/articles/82d7462162395b73f322902008a513a5bc04cd30