John Mackinson vs. Karl Spooner — Career Comparison

Karl Spooner built a career as a starting pitcher and John Mackinson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Karl Spooner posted stronger surface numbers — ERA 3.09 and WHIP 1.149 compared to 7.36 and 1.773 for John Mackinson. By the career numbers, Karl Spooner had the better of this cross-role comparison — though era context would sharpen the verdict.