Baseball rules pitcher or from the catcher. Effective pitching is critical to a baseball team, as pitching is the key for the defensive team to retire batters and to prevent runners from getting on base. A full game usually involves over one hundred pitches thrown by each team. However, most pitchers begin to tire before they reach this point. In previous eras, pitchers would often throw up to four complete games (all nine innings) in a week. With new advances in medical research and thus a better understanding of how the human body functions and tires out, starting pitchers tend more often
Win–loss record (pitching) Win–loss record (pitching) In baseball and softball, a pitcher's win–loss record (also referred to simply as their record) indicates the number of wins (denoted "W") and losses (denoted "L") they have been credited with. For example, a 20–10 win–loss record would represent 20 wins and 10 losses. In each game, one pitcher on the winning team is awarded a win (the "winning pitcher") and one pitcher on the losing team is given a loss (the "losing pitcher") in their respective statistics. These pitchers are collectively known as the pitchers of record. The designation of win or loss for a pitcher