Jack Armstrong vs. Mitch Harris — Career Comparison

Jack Armstrong built a career as a starting pitcher and Mitch Harris as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mitch Harris posted stronger surface numbers — ERA 3.67 and WHIP 1.593 compared to 4.58 and 1.458 for Jack Armstrong. By the career numbers, Mitch Harris had the better of this cross-role comparison — though era context would sharpen the verdict.