Hansel Robles vs. Red Waller — Career Comparison

Looking at the career totals, Hansel Robles and Red Waller are fairly close on the surface numbers. Red Waller posted stronger numbers in ERA (0 vs 4.11) and home runs allowed (0 per nine innings vs 1.2). Hansel Robles had the advantage in WHIP (1.320 vs 3.000). By the career numbers, Red Waller 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.