Dennis Aust vs. Tim Birtsas — Career Comparison

Looking at the career totals, Dennis Aust and Tim Birtsas are fairly close on the surface numbers. Tim Birtsas posted stronger numbers in ERA (4.08 vs 5.82) and WHIP (1.564 vs 1.706). Dennis Aust had the advantage in home runs allowed (0.53 per nine innings vs 1.01). By the career numbers, Tim Birtsas 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.