Hayden Penn vs. Mason Thompson — Career Comparison

Hayden Penn built a career as a starting pitcher and Mason Thompson as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mason Thompson posted stronger surface numbers — ERA 5.21 and WHIP 1.667 compared to 9.51 and 2.235 for Hayden Penn. By the career numbers, Mason Thompson had the better of this cross-role comparison — though era context would sharpen the verdict.