Robert Keys vs. Lewis Woolfolk — Career Comparison

Looking at the career totals, Robert Keys and Lewis Woolfolk are fairly close on the surface numbers. Lewis Woolfolk posted stronger numbers in WHIP (1.506 vs 1.593) and home runs allowed (0.23 per nine innings vs 0.47). Robert Keys had the advantage in ERA (4.8 vs 5.08). By the career numbers, Lewis Woolfolk 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.