David Hernandez vs. Chi-Chi Olivo — Career Comparison

On the career pitching numbers, Chi-Chi Olivo posted a stronger line than David Hernandez. Chi-Chi Olivo posted stronger numbers in ERA (3.96 vs 4.12) and home runs allowed (0.83 per nine innings vs 1.22). By the career numbers, Chi-Chi Olivo 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.