Alek Jacob vs. John Purdin — Career Comparison

Looking at the career totals, Alek Jacob and John Purdin are fairly close on the surface numbers. Alek Jacob posted stronger numbers in WHIP (1.216 vs 1.410) and home runs allowed (1.24 per nine innings vs 1.46). John Purdin had the advantage in ERA (3.9 vs 4.06). By the career numbers, Alek Jacob 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.