John Lannan vs. Johnny Ruffin — Career Comparison

John Lannan built a career as a starting pitcher and Johnny Ruffin as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Johnny Ruffin led in strikeout rate (K%+ 110 vs 69), skill-based run prevention (DICE+ 99 vs 91), and walk avoidance (BB%+ 103 vs 97). John Lannan held the edge in home run suppression (HR9+ 109 vs 88). Role difference aside, Johnny Ruffin holds a clear edge on every meaningful shared measure.