排球比賽中發球方or接發方的得分率高? - 排球

By Anthony
at 2013-06-20T07:50
at 2013-06-20T07:50
Table of Contents
昨天看到某FB粉絲專業問大家覺得發球方還是接發方容易得分
於是我跟這問題認真了...寫了一篇不專業數據分析文
僅僅為個人看法
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網誌版: http://djeravisser.blogspot.tw/2013/06/or.html
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這個問題必須看比賽的強度,高強度的比賽中是接發方得分率高(男女排都是)
但是如果兩隊實力差距過大那又另當別論了
至於要說某某某發球時得分率很高,這種情形只是排球比賽裡面的一環,通常稱之為發球
強輪,但是不可能輪輪都是強輪,單獨拿出來說發球方得分率高並不正確,還是應該要看
全場比賽的狀況
以下是數據分析(有誤請指正)
首先要介紹幾個技術統計項目
BP(Break Point)
發球方的主動得分,舉例來說: 發出一個Ace就代表一個BP
OPP Err
排球中除了主動得分之外,還可以靠著對手失誤得分
算法一(有誤差)
A隊在發球時的得分: BP + (OPP Err / 2)
(OPP Err / 2): 對手為發球方或接發方時都有可能會發生失誤,除以2當作對手為接發
方時的失誤(誤差就在這裡)
A隊在發球時的得分率: A隊在發球時的得分 / A隊的發球總數
整場比賽中發球方的得分率:(A隊在發球時的得分 + B隊在發球時的得分) / 整場的發球
總數(兩隊加總)
算法二(比較麻煩)
直接數
數發球方得分的次數,除以整場的發球次數(兩隊加總)就是發球方的得分率
接發方得分時會交換發球,數交換發球的次數,交換發球的次數除以整場的發球次數(兩
隊加總)就是接發方的得分率
要算各別隊伍的話要分開算
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接著就來提供範例
範例一
2011女排歐錦賽決賽 德國 - 塞爾維亞 技術統計
http://www.cev.lu/Competition-Area/MatchStatistics.aspx?ID=23666
算法一
所需的數據攔位 示意圖
圖一 http://ppt.cc/CMU4
圖二 http://ppt.cc/~lrj
德國在發球時的得分: 35 + (24 / 2) = 47
德國在發球時的得分率: 47 / 100 = 47.00%
塞爾維亞在發球時的得分: 34 + (28 / 2) = 48
塞爾維亞在發球時的得分率: 48 / 99 = 48.48%
整場比賽中發球方的得分率:(47 + 48) / (100 + 99) = 47.74%
得 接發方得分率較高
算法二
分數記錄表
http://ppt.cc/hjBO
所需的欄位 示意圖
http://ppt.cc/N-Sb (紅線是我畫的)
每個角代表交換發球,因為若是發球方得分會使直線往同方向走,而接發方得分會使直線
往另一方向走
*第一局為塞爾維亞先發球,分數表的上方為德國、下方為塞爾維亞
第一局德國在接發時的得分: 13
第一局德國在接發時的得分率: 13 / 17 = 76.47%
第一局塞爾維亞在接發時的得分: 12
第一局塞爾維亞在接發時的得分率: 12 / 24 = 50%
第一局中接發方的得分率: (13+12) / (17 +24) = 60.98%
得 接發方得分率較高
範例二
2011男排歐錦賽決賽 義大利 - 塞爾維亞 技術統計
http://www.cev.lu/Competition-Area/MatchStatistics.aspx?ID=23662
算法一
義大利在發球時的得分: 24 + (22 / 2) = 35
義大利在發球時的得分率: 35 / 93 = 37.63%
塞爾維亞在發球時的得分: 26 + (30 / 2) = 41
塞爾維亞在發球時的得分率: 41 / 91 = 45.05%
整場比賽中發球方的得分率: (35 + 41) / (93 + 91) = 41.30%
得 接發方得分率較高
算法二
分數記錄表
http://ppt.cc/8OE8
*第一局為塞爾維亞先發球,分數表的上方為義大利、下方為塞爾維亞
第一局義大利在接發時的得分: 15
第一局義大利在接發時的得分率: 15 / 18 = 83.33%
第一局塞爾維亞在接發時的得分: 14
第一局塞爾維亞在接發時的得分率: 14 / 24 = 56%
第一局中接發方的得分率: (15+14) / (18 + 24) = 58.33%
得 接發方得分率較高
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其他範例 我就不算出來了,只提供數據
2013女排歐冠決賽 Vakifbank ISTANBUL - Rabita BAKU
技術統計
http://www.cev.lu/Competition-Area/MatchStatistics.aspx?ID=24781
分數記錄表
http://ppt.cc/QeZI
2013男排歐冠決賽 Bre Banca Lannutti CUNEO - Lokomotiv NOVOSIBIRSK
技術統計
http://www.cev.lu/Competition-Area/MatchStatistics.aspx?ID=24719
分數記錄表
http://ppt.cc/ZbV5
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Tags:
排球
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