Ubaldo Heredia vs. Mac MacArthur — Career Comparison

Ubaldo Heredia built a career as a starting pitcher and Mac MacArthur as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Mac MacArthur posted stronger surface numbers — ERA 5.02 and WHIP 1.500 compared to 5.4 and 1.400 for Ubaldo Heredia. By the career numbers, Mac MacArthur had the better of this cross-role comparison — though era context would sharpen the verdict.