Baseball statistics include a variety of metrics used to evaluate player and team performance in the sport of baseball.
Pedro Jaime Martínez is a Dominican-American former professional baseball starting pitcher, who played in Major League Baseball (MLB) from 1992 to 2009, for five teams—most notably the Boston Red Sox from 1998 to 2004.
In baseball, a wild pitch (WP) is charged against a pitcher when his pitch is too high, too short, or too wide of home plate for the catcher to control with ordinary effort, thereby allowing a baserunner, or the batter, to advance.
In baseball and softball statistics, an error is an act, in the judgment of the official scorer, of a fielder misplaying a ball in a manner that allows a batter or baserunner to advance one or more bases or allows a plate appearance to continue after the batter should have been put out. The term error is sometimes used to refer to the play during which an error was committed.
In baseball and softball, a win–loss record is a statistic that indicates the number of wins and losses credited to a pitcher. For example, a 20–10 win–loss record would represent 20 wins and 10 losses.
In baseball, a save is credited to a pitcher who finishes a game for the winning team under certain circumstances. A save can be earned by entering a game in which his team is leading by three or fewer runs and finishing the game by pitching at least one inning without losing the lead; entering the game with the tying run in the on-deck circle, at the plate or on the bases and finishing the game; or by pitching at least three innings in relief and finishing the game regardless of how many runs your team was winning by when entering the game. The number of saves or percentage of save opportunities successfully converted are oft-cited statistics of relief pitchers, particularly those in the closer role. The save statistic was created by journalist Jerome Holtzman in 1959 to "measure the effectiveness of relief pitchers" and was adopted as an official Major League Baseball (MLB) statistic in 1969. The save has been retroactively tabulated for pitchers before that date. Mariano Rivera is MLB's all-time leader in regular-season saves with 652, while Francisco Rodríguez earned the most saves in a single season with 62 in 2008.
In baseball statistics, walks plus hits per inning pitched (WHIP) is a sabermetric measurement of the number of baserunners a pitcher has allowed per inning pitched. WHIP is calculated by adding the number of walks and hits allowed and dividing this sum by the number of innings pitched.
Edward Augustine Walsh was an American pitcher and manager in Major League Baseball, nicknamed "Big Ed". From 1906 to 1912, he had several seasons where he was one of the best pitchers in baseball. Walsh holds the record for lowest career earned run average, 1.82. He is one of two modern (post-1901) pitchers to win 40 or more games in a single season, and the last pitcher to do so. He is the last pitcher from any team to throw more than 400 innings in a single season, a feat he accomplished in 1907 and 1908. Though injuries shortened his career, he was inducted into the Baseball Hall of Fame in 1946.
In baseball, fielding independent pitching (FIP) is intended to measure a pitcher's effectiveness based only on statistics that do not involve fielders. These include home runs allowed, strikeouts, hit batters, walks, and, more recently, fly ball percentage, ground ball percentage, and line drive percentage. By focusing on these statistics and ignoring what happens once a ball is put in play, which – on most plays – the pitcher has little control over, DIP claims to offer a clearer picture of the pitcher's true ability.
Below are select minor league players, and the rosters of the minor league affiliates, of the San Francisco Giants:
In baseball statistics, earned run average (ERA) is the average of earned runs allowed by a pitcher per nine innings pitched. It is determined by dividing the number of earned runs allowed by the number of innings pitched and multiplying by nine. Thus, a lower ERA is better. Runs resulting from passed balls, defensive errors, and runners placed on base at the start of extra innings are recorded as unearned runs and omitted from ERA calculations.
