知名部落客兼數據頭席琳在38 Pitches談到PDF
http://38pitches.wordpress.com/2011/06/24/pitchers-dominance-factor/
1960迄今51年間,只有7個投手在14個球季PDF在6以上
其中Pedro Martinez一個人佔了五次,其他六位分別是 Maddux 2, Santana 1, RJ 2
(1 AL 1 NL), Clemens 1, Sabathia 1, Kevin Brown 2
數據頭席琳提到PDF要高的關鍵在於
1) Be a power pitcher with very good to great control
2) NOT walk people
3) Strike people out
有興趣可以參考參考