Aaron Bummer vs. Bob Chakales — Career Comparison

On the career pitching numbers, Aaron Bummer posted a stronger line than Bob Chakales. Aaron Bummer posted stronger numbers in ERA (3.8 vs 4.54) and WHIP (1.355 vs 1.623). By the career numbers, Aaron Bummer 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.