Keith Atherton vs. Chi-Chi Olivo — Career Comparison

Looking at the career totals, Keith Atherton and Chi-Chi Olivo are fairly close on the surface numbers. Chi-Chi Olivo had the edge in home runs allowed (0.83 per nine innings vs 1.19). 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.