Edward Mujica vs. Grant Roberts — Career Comparison

Looking at the career totals, Edward Mujica and Grant Roberts are fairly close on the surface numbers. Edward Mujica posted stronger numbers in ERA (3.92 vs 4.25) and WHIP (1.213 vs 1.515). Grant Roberts had the advantage in home runs allowed (0.62 per nine innings vs 1.3). By the career numbers, Edward Mujica 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.