Frank Bates vs. Saul Rivera — Career Comparison

Looking at the career totals, Frank Bates and Saul Rivera are fairly close on the surface numbers. Saul Rivera posted stronger numbers in ERA (4.29 vs 6.33) and WHIP (1.568 vs 2.082). Frank Bates had the advantage in home runs allowed (0.28 per nine innings vs 0.55). By the career numbers, Saul Rivera 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.