Casey Fossum vs. Kelvin Herrera — Career Comparison

Casey Fossum built a career as a starting pitcher and Kelvin Herrera as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Kelvin Herrera led in walk avoidance (BB%+ 115 vs 91), run prevention (ERA+ 117 vs 94), and home run suppression (HR9+ 100 vs 89). Casey Fossum held the edge in strikeout rate (K%+ 115 vs 103). Role difference aside, Kelvin Herrera holds a clear edge on every meaningful shared measure.