John Foley vs. Rolla Mapel — Career Comparison

Rolla Mapel built a career as a starting pitcher and John Foley as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Foley posted a career ERA of 4.5 against Rolla Mapel's 4.5, with WHIP of 1.375 and 1.700 respectively. The raw numbers call this too close to separate — era context would be needed for a firmer verdict.