John Foster vs. Dennis Lewallyn — Career Comparison

On the career pitching numbers, Dennis Lewallyn posted a stronger line than John Foster. Dennis Lewallyn posted stronger numbers in ERA (4.48 vs 4.9) and WHIP (1.481 vs 1.615). By the career numbers, Dennis Lewallyn 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.