Tim Birtsas vs. Dennis Lewallyn — Career Comparison

Looking at the career totals, Tim Birtsas and Dennis Lewallyn are fairly close on the surface numbers. Dennis Lewallyn posted stronger numbers in WHIP (1.481 vs 1.564) and home runs allowed (0.67 per nine innings vs 1.01). Tim Birtsas had the advantage in ERA (4.08 vs 4.48). By the career numbers, Dennis Lewallyn 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.