Paul Byrd vs. Kyle Peterson — Career Comparison

Looking at the career totals, Paul Byrd and Kyle Peterson are fairly close on the surface numbers. Paul Byrd posted stronger numbers in ERA (4.41 vs 4.71) and WHIP (1.344 vs 1.516). Kyle Peterson had the advantage in home runs allowed (0.59 per nine innings vs 1.31). By the career numbers, Paul Byrd 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.