Better Defense Through Bruising - Equations

. Equations

Knuckleballers (r-square = .3619)

avg MPrate = 0.383 * SOrate + .262 * BBrate + .760 * HBPrate - 3.093

Tim Wakefield, 2005 (MP rate=5.04)

avg MPrate = .383 * 15.05 + .262 * 7.38 + .760 * 1.52 - 3.093 = 5.76

Non-Knuckleballers (r-square = .2028)

avg MPrate = 0.036 * SOrate + .206 * BBrate + .062 * HBPrate - 0.237

David Wells, 2005 (actual MP rate=0.82)

avg MPrate = .036 * 13.13 + .206 * 2.59 + .062 * 0.69 - .237 = 0.81