David Hernandez vs. Ken Polivka — Career Comparison

Looking at the career totals, David Hernandez and Ken Polivka are fairly close on the surface numbers. Ken Polivka posted stronger numbers in ERA (3 vs 4.12) and home runs allowed (0 per nine innings vs 1.22). David Hernandez had the advantage in WHIP (1.335 vs 2.000). By the career numbers, Ken Polivka 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.