John Burkett vs. Casey Janssen — Career Comparison

John Burkett built a career as a starting pitcher and Casey Janssen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Burkett led in strikeout rate (K%+ 96 vs 76), home run suppression (HR9+ 95 vs 85), and run prevention (ERA+ 96 vs 87). Casey Janssen held the edge in walk avoidance (BB%+ 171 vs 120). Role difference aside, John Burkett holds a clear edge on every meaningful shared measure.