Frank Arellanes vs. John Mackinson — Career Comparison

Frank Arellanes 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. Frank Arellanes posted stronger surface numbers — ERA 2.28 and WHIP 1.081 compared to 7.36 and 1.773 for John Mackinson. By the career numbers, Frank Arellanes had the better of this cross-role comparison — though era context would sharpen the verdict.