Marcos Mateo vs. Reggie Richter — Career Comparison

Looking at the career totals, Marcos Mateo and Reggie Richter are fairly close on the surface numbers. Reggie Richter posted stronger numbers in ERA (3.13 vs 4.65) and home runs allowed (0.16 per nine innings vs 1.63). Marcos Mateo had the advantage in WHIP (1.340 vs 1.500). By the career numbers, Reggie Richter 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.