Tyler Robertson vs. Arnold Umbach — Career Comparison

Looking at the career totals, Tyler Robertson and Arnold Umbach are fairly close on the surface numbers. Arnold Umbach posted stronger numbers in ERA (3.12 vs 5.54) and home runs allowed (0.18 per nine innings vs 1.73). Tyler Robertson had the advantage in WHIP (1.500 vs 1.551). By the career numbers, Arnold Umbach 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.