大聯盟主審好球帶判決準確率分析 - 美國職棒

By Kelly
at 2020-10-01T19:19
at 2020-10-01T19:19
Table of Contents
https://www.bu.edu/articles/2019/mlb-umpires-strike-zone-accuracy
0. 大聯盟裁判平均一場判錯14顆好壞球 或者一局1.6顆
1. 年輕的菜鳥裁判好壞球正確率較高
根據這篇文章
大聯盟2018 年好壞球判決比率最佳的十位裁判
平均年齡37.8 歲 執法年數6.3 年 好壞球誤判率為7.78%
最差的十位裁判
平均年齡56.6 歲 執法年數23 年 好壞球誤判率為10.88%
2. 在兩好球時 裁判更傾向於判好球
根據這篇文章
2018 年所有的called strike three, 大概有21% 是壞球
比起來不該判四壞卻判四壞的比率是7%
3. 人類裁判最大的弱點是不會判高好球
內角和外角高的好球被判成壞球的比率是內角和外角低的接近兩倍
4. 比賽在前中後段 或是比分差距大小 對裁判的錯誤率影響不大
5. 大聯盟最近十年的好壞球判決持續在進步
2008 年時好壞球判決錯誤率15~16%
2018 年首度低於10% (9.34%)
==
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