Frank Ulrich vs. Ismael Valdez — Career Comparison

On the career pitching numbers, Frank Ulrich posted a stronger line than Ismael Valdez. Frank Ulrich posted stronger numbers in ERA (3.48 vs 4.09) and home runs allowed (0.47 per nine innings vs 1.15). By the career numbers, Frank Ulrich 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.