Runs = .5*(singles)+.72*(doubles)+1.04*(triples)+1.44*(home runs) +.34*(hit by pitch+walks-intentional walks)+.25*(intentional walks) +.37*(sacrifice flies)+.04*(sacrifice hits)+.18*(stolen bases) -.32*(caught stealing)-.09*(at bats-hits-strikeouts)-.098*(strikeouts) -.37*(grounded into double plays). 복잡해 보이긴 하지만 더하기, 빼기, 곱하기가 있는 간단한 공식이다. Extrapolated Runs (or XR) 추정 득점이다. 자세한 내용은 여기 http://www..