Ryota Igarashi vs. Hector Mercado — Career Comparison

Looking at the career totals, Ryota Igarashi and Hector Mercado are fairly close on the surface numbers. Hector Mercado posted stronger numbers in ERA (4.55 vs 6.41) and WHIP (1.564 vs 1.849). Ryota Igarashi had the advantage in home runs allowed (0.74 per nine innings vs 1.08). By the career numbers, Hector Mercado 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.