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In baseball statistics, exit velocity (EV) is the estimated speed at which a batted ball is travelling as it is coming off the player's bat. Batters generally aim for a higher exit velocity in order to give opposing fielders less time to react and attempt a defensive play [ citation needed ] ; however, many batters are still able to accrue hits ...
Exit velocity: Velocity of the ball off the bat on batted balls. Launch angle : The vertical angle at which the ball leaves the bat on a batted ball. Vector : Classifies the horizontal launch direction of the batted ball into five equal zones of 18 degrees each.
Speed Score, often simply abbreviated to Spd, is a statistic used in Sabermetric studies to evaluate a baseball player's speed. It was invented by Bill James, and first appeared in the 1987 edition of the Bill James Baseball Abstract. [1] Speed score is on a scale of 0 to 10, with zero being the slowest and ten being the fastest.
Baseball statistics include a variety of metrics used to evaluate player and team performance in the sport of baseball. Because the flow of a baseball game has natural breaks to it, and player activity is characteristically distinguishable individually, the sport lends itself to easy record-keeping and compiling statistics.
Game score is a metric devised by Bill James as a rough overall gauge of a starting pitcher's performance in a baseball game. It is designed such that scores tend to range from 0–100, with an average performance being around 50 points.
In Major League Baseball (MLB), .300 is considered an average BABIP. [2] Various factors can impact BABIP, such as a player's home ballpark; [3] for batters, being speedy enough to reach base on infield hits; [3] or, for pitchers, the quality of their team's defense. [4]
Power–speed number or power/speed number (PSN) is a sabermetrics baseball statistic developed by baseball author and analyst Bill James which combines a player's home run and stolen base numbers into one number. [1] The formula is: = +. [1] (It is the harmonic mean of the two totals.)
In the most basic runs created formula: = (+) + where H is hits, BB is base on balls, TB is total bases and AB is at-bats.. This can also be expressed as = = where OBP is on-base percentage, SLG is slugging average, AB is at-bats and TB is total bases, however OBP includes the hit-by-pitch while the previous RC formula does not.