Beiker Graterol vs. Rolla Mapel — Career Comparison

On the career pitching numbers, Rolla Mapel posted a stronger line than Beiker Graterol. Rolla Mapel posted stronger numbers in ERA (4.5 vs 15.75) and WHIP (1.700 vs 2.250). By the career numbers, Rolla Mapel had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.