Factoring Bullpens Into DFS Decisions
About three or four times each week I create projections and player rankings for DFS contests. As an example, you can find my breakdown of tonight’s DFS action here ($). My projections start with the rest-of-season ZiPS projections, which I break down to a per-game basis. I then adjust each projection for matchup and ball park.
For hitters, the matchup adjustment is based on the wOBA allowed by the starting pitcher they will be facing against hitters of the same handedness since the start of the 2014 season. When small sample sizes apply, I manually set the matchup adjustment. But it recently occurred to me that adjustments for matchup should probably include the strength of the opponent’s bullpen. To date, starters are pitching an average of 5.88 innings per game this year, meaning my matchup adjustment is ignoring roughly a third of each hitter’s plate appearances. Read the rest of this entry »