[閒聊] BABIP 與 高飛.平飛.滾地球
說明: 打進場內的 GB%(滾地%) LD%(平飛%) FB%(高飛%) IFFB(內野高飛%,歸屬於FB%)
其中 GB% + LD% + FB% =100% (因小數點誤差 會有1%左右誤差) 以下P:代表投手
LD%(平飛球) 是打者最容易得分 期望值遙遙領先的軌跡 => 滾地型P = 飛球型P
IFFB%(內野高飛) 容易被接殺出局 => 飛球型P > 滾地型P 極端值大約有10%差距
以下選的滾地球型投手TOP10(滾地球比例) 整體實力比 飛球型TOP10 還強
但BABIP 是飛球型投手低了一截,想必被長打機率 飛球型投手機會高受傷大 成績較差
補充:K%反而是飛球型投手高一大截 平均大約高7% (排除飛球型K的能力太低因素)
心得 => 單純看BABIP 若忽略了球軌跡類型 ~ 滾地or 高飛 比例大小 是否會失真很大
滾地球型投手 平均的BABIP本來就會比高飛型的高出一截,但殺傷力小
當引用BABIP來評估運氣 是否應該 引用飛球(滾地)比例的數據~加權修正 較客觀
特別選 王建民2006-2007 最光輝的兩年 (滾地球型的代表人物之一)
2006-2007 滾地球% TOP10 先發符合最低有效投球局數 (Fangraphs)
W-L ERA Season Name BABIP GB% LD% FB% IFFB% xFIP
16-8 3.63 2006 Derek Lowe 0.289 67% 16% 17% 9% 3.65
16-8 3.10 2006 Brandon Webb 0.287 66% 17% 16% 6% 3.03
12-14 3.88 2007 Derek Lowe 0.288 65% 16% 19% 4% 3.40
19-8 3.06 2007 Roberto Hernandez 0.280 64% 14% 22% 6% 3.81
19-6 3.63 2006 Chien-Ming Wang 0.292 63% 17% 20% 5% 4.19
16-10 3.33 2007 Tim Hudson 0.292 62% 17% 22% 3% 3.74
18-10 3.01 2007 Brandon Webb 0.285 62% 18% 20% 4% 3.30
14-7 3.92 2007 Felix Hernandez 0.333 61% 16% 23% 8% 3.27
15-10 4.17 2006 Jake Westbrook 0.322 61% 18% 22% 5% 4.00
19-7 3.70 2007 Chien-Ming Wang 0.295 58% 18% 23% 8% 4.15
W-L ERA Season Name BABIP GB% LD% FB% IFFB% xFIP
2006-2007 高飛球% TOP10 先發符合最低有效投球局數 (Fangraphs)
W-L ERA Season Name BABIP GB% LD% FB% IFFB% xFIP
11-5 3.46 2006 Chris Young 0.226 25% 18% 56% 16% 4.68
9-8 3.12 2007 Chris Young 0.241 29% 16% 55% 13% 4.44
15-10 3.56 2007 Oliver Perez 0.271 33% 17% 50% 13% 4.50
15-8 3.83 2007 Ted Lilly 0.261 34% 17% 49% 12% 4.16
14-11 4.40 2006 Cliff Lee 0.296 33% 19% 48% 14% 5.16
13-12 4.15 2006 Matt Cain 0.263 36% 17% 48% 16% 4.59
11-11 4.66 2006 Orlando Hernandez 0.302 34% 19% 47% 12% 4.29
7-9 4.63 2007 Matt Chico 0.286 33% 20% 47% 11% 5.52
10-15 4.32 2007 Jarrod Washburn 0.284 37% 18% 45% 15% 5.09
W-L ERA Season Name BABIP GB% LD% FB% IFFB% xFIP
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