Alan Foster vs. Bill Williams — Career Comparison

Looking at the career totals, Alan Foster and Bill Williams are fairly close on the surface numbers. Alan Foster posted stronger numbers in ERA (3.74 vs 5.06) and home runs allowed (0.87 per nine innings vs 1.69). Bill Williams had the advantage in WHIP (1.313 vs 1.364). By the career numbers, Alan Foster 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.