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Run support is a baseball statistic used to assess a starting pitcher's support by the team's offense in actual runs scored. It measures how many runs were scored by his team on average when he starts. It is considered a somewhat important statistic because a team (and its pitcher) earn wins by holding its opponents to fewer runs than it scores. Since a pitcher's skill is a large factor in how many runs the opponent scores and a non-factor in how many runs his team scores, this is a measure of whether the pitcher happened to pitch on days when his team scored a lot. There are two different measures of run support. These statistics may be adjusted for park and league factors.[1]

  1. The number of runs scored per nine innings of opponent batting during the pitchers starts.[2]
  2. The number of runs per start.[1]


  1. ^ a b "Run Support Index". Society For American Baseball Research. July 6, 2004.
  2. ^ "SUP". TheFreeDictionary. Farlex, Inc. 2007.