Lisalverto Bonilla vs. Bob O'Brien — Career Comparison

On the career pitching numbers, Bob O'Brien posted a stronger line than Lisalverto Bonilla. Bob O'Brien posted stronger numbers in ERA (3 vs 6.28) and WHIP (1.333 vs 1.570). By the career numbers, Bob O'Brien 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.