Jake Arrieta vs. Bob Pepper — Career Comparison

Jake Arrieta built a career as a starting pitcher and Bob Pepper as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Bob Pepper posted stronger surface numbers — ERA 1.8 and WHIP 2.000 compared to 3.98 and 1.268 for Jake Arrieta. By the career numbers, Bob Pepper had the better of this cross-role comparison — though era context would sharpen the verdict.