Don Carlsen vs. Jailen Peguero — Career Comparison

Don Carlsen built a career as a starting pitcher and Jailen Peguero as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Don Carlsen posted stronger surface numbers — ERA 6 and WHIP 1.778 compared to 7.5 and 1.833 for Jailen Peguero. By the career numbers, Don Carlsen had the better of this cross-role comparison — though era context would sharpen the verdict.