BB Rate
Walk Rate -- the percentage of plate appearances resulting in a base on balls, for both hitters and pitchers.
Like a soccer player who consistently maintains possession rather than forcing risky passes.
Why it matters
Walk rate is highly stable and indicates plate discipline. High-walk hitters extend at-bats and reach base more reliably.
How DMP uses this
DMP factors walk rate into on-base projections and uses it as a signal of hitter quality and plate discipline.
Common mistake
Overlooking walks for prop research -- walks keep innings alive and create RBI opportunities for teammates.