Term or Stat for when a baseball pitcher is responsible for the team's win, both offensively and defensively?


Baseball purists have always argued that you can learn everything you need to know about a given baseball game by reading the box score. Indeed, virtually everything that happens during a game can be recorded on the score sheet and categorized numerically. Recently, fans and analysts have utilized technological advances to create new, often more complex ways to evaluate player performance.

We are now in the midst of what could legitimately be deemed a statistical revolution. And in order for us as players and fans to keep up with the trends of the sport, we must acquaint ourselves with some of these brand new stats.

What follows is an overview of some of baseball’s most advanced pitching statistics (for an overview of offensive stats, check out the iSport guide, “Baseball Batting Statistics Explained”). This list outlines just a handful of the dozens of innovative pitching stats in use today. These particular statistics were chosen to represent an accurate...

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Basic inputs

At its most basic level, our pitching WAR calculation requires only overall Runs Allowed (both earned and unearned) and Innings Pitched. Since we are trying to measure the value of the pitcher's performance to his team, we start with his runs allowed and then adjust that number to put the runs into a more accurate context.

Determining what the Average Pitcher would have done

Once we have the pitcher's runs allowed and innings, we set about figuring out what an average pitcher would have done if placed in the same setting as the pitcher we are studying.

xRA, Level of Opposition

Back to 1918, we have gamelogs for every major league pitching appearance. This means that we can, with certainty, determine which team's pitchers we're facing. For each season, we also know the average runs per out for each team and we can adjust this number into a neutral context using park factors. Then, based on this, we can determine what the average...

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A view of the playing field at old Busch Stadium in St. Louis, Missouri

Baseball is a team sport popular in North America, Latin America, the Caribbean and East Asia. The modern game was developed in the United States from early bat-and-ball games played in Britain and is known as the "national pastime" of the United States, although American football may arguably draw more fans and television viewership.

Baseball is a rare sport in which there is no time limit for play and the defensive side controls the ball. The game also involves a unique combination of individual competitiveness between pitcher and batter and total strategic involvement of the team when the ball is put in play. When played on a high level, baseball involves many subtle adjustments on defense, often depending on the presence of base runners; specialized pitches that vary in movement and velocity; arcane signals; and the execution of precise offensive plays for strategic objectives.


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