WHIP
Walks plus Hits per Inning Pitched -- the average number of baserunners a pitcher allows per inning.
Like measuring how often a goalie lets shots through, regardless of whether they score.
Why it matters
WHIP measures how often a pitcher puts runners on base, directly impacting pitch count, scoring opportunities, and bullpen usage.
How DMP uses this
DMP uses WHIP to evaluate pitcher workload and how quickly starters might exit, affecting reliever prop markets.
Common mistake
Treating WHIP the same as ERA -- a pitcher with low ERA but high WHIP is getting lucky and will regress.