Keith Butler vs. Larry Dierker — Career Comparison

Larry Dierker built a career as a starting pitcher and Keith Butler as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Larry Dierker posted stronger surface numbers — ERA 3.31 and WHIP 1.236 compared to 6.14 and 1.409 for Keith Butler. By the career numbers, Larry Dierker had the better of this cross-role comparison — though era context would sharpen the verdict.