Re: [討論]勝投的意義?
如果要仔細去分析ERA的話,
是否還要把每個投手所面對的打者,攻擊能力一起計算進去呢?
每個投手面對的打者,以及遭遇的次數都不一樣,
除非今天每個投手對上每個打者的次數是相同的,
那麼ERA就可以真正反映出每個投手面對一樣打者時的能力,
舉例來說:
今天假設一個國聯的投手跟小王有著一樣的ERA時,
我會覺得小王還是優於這個國聯投手,
因為國聯九棒中一定會有一個斷層 可以閃,
這跟在美聯是完全不一樣的情況 尤其是東區,켊
尤其投手在領先比較多的時候,
投球方式跟低比數比賽投球方式大不相同 ,
領先較多時 有比較多的空間去嘗試一些平常低比數時不敢投的球來測試看看球路威力,
而低比數時往往投的都是拿手球路,
因此小弟認為ERA也只不過跟K/9一樣是個參考的數據罷了,不用看得太過重要
重要程度並不像勝投意義來得大
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