※ 引述《NPLNT (Bruzi Geist)》之铭言： : 我想请教各位大大一个问题 : 就是我记得棒球规则里有规定打者站上打击区後不能改变左右打 : 那我想请问投手有类似规定吗 : 比如说对同一名打者实不能改变左右投 : 或是一场比赛内不能改变左右投? : 要事都没规定的话应该蛮酷的 一位打者就要同时面对左投跟右投了XD : 不过要是只规定同一名打者内不能换的话应该也不错 : 这样子他先发就不需要一人左了 : 话说洋基现在好像也没这种东西...... http://mlb.mlb.com/mlb/official_info/umpires/feature.jsp?feature=qa4 节录自大联盟官网, Ask the Umpire I have a question regarding pitching. Is there any rule that stipulates that a pitches must either right-handed or left-handed? No, there is no such rule. Based on the answer to the first question: If not, it is feasible to say that a pitcher could deliver the ball right-handed one pitch and then left-handed on the next? Ambidextrous pitchers are rare but do exist. An example was Greg Harris, who pitched with the Boston Red Sox. When such pitchers pitch in the Major Leagues, they must pitch with the same hand during a batter's entire at-bat. Such pitchers may change pitching hand for the next batter, but again must continue with that arm for that batter's entire at-bat. 正解是, 每一名打者上来之前投手都可以选择用哪一手投球, 左右开弓打者 弹性比较大, 每次进入打击区都可以换边站, 只是没有人会这样做而已. --

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