本研究目的為：一、探討不同性別之先開球者之勝負情形。以及先開球者開球時是否進球對勝負的影響情形。接著探討比賽中發生犯規或失誤時對勝負的影響情形。研究對象為參加2007、2009年全國運動會9號球的男女撞球運動員。採SPSS13.0版的統計軟體進行卡方檢驗。結果發現：一、男、女運動員先開球者之勝負差異未達顯著水準。二、先取得開球權的運動員，其開球的進球率高，則獲勝的比例較高，反之，則輸球比例較高。三、沒有犯規的運動員贏得該場比賽的比例高於有犯規者。四、有發生失誤的運動員輸掉該場比賽的比例高於無失誤者。

The purpose of this study were : 1, probe into different sex and win and defeat situation of the person who kicks off first. 2, 9-ball player situation of impact on win and defeat that probe into the persons who kick off and score while kicking off. 3, 9-ball player situation of impact on win and defeat when probe into miss or foul emerges in the match. Regarding participating in the pool athletes of men and women of National Games in 2007、2009 as the subject, the statistics software which adopts SPSS13.0 edition examines the X^2. Finally: 1, the difference has no significance of showing among different sex, the competition and win and defeat of the person who kicks off first. 2, obtain and kick off to the 9-ball player of right first, the goal rate of scoring is high to kick off, this office and victorious proportion of end are relatively high. 3, the proportion that the 9-ball player with the foul loses this match is higher than without foul. 4, the proportion that the 9-ball player without miss wins this match is higher than who has miss.