Boof Bonser vs. Charlie Kerfeld — Career Comparison

Boof Bonser built a career as a starting pitcher and Charlie Kerfeld as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Charlie Kerfeld led in home run suppression (HR9+ 170 vs 78), run prevention (ERA+ 116 vs 92), and skill-based run prevention (DICE+ 109 vs 99). Boof Bonser held the edge in walk avoidance (BB%+ 115 vs 81). Keeping the role difference in mind, the edge still goes to Charlie Kerfeld.