Jonathan Aro vs. Art Lopatka — Career Comparison

Art Lopatka built a career as a starting pitcher and Jonathan Aro as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Art Lopatka posted stronger surface numbers — ERA 6.35 and WHIP 1.588 compared to 6.55 and 1.909 for Jonathan Aro. By the career numbers, Art Lopatka had the better of this cross-role comparison — though era context would sharpen the verdict.