Valerio De Los Santos vs. Jay Marshall — Career Comparison

Looking at the career totals, Valerio De Los Santos and Jay Marshall are fairly close on the surface numbers. Valerio De Los Santos posted stronger numbers in ERA (4.57 vs 7.66) and WHIP (1.434 vs 1.845). Jay Marshall had the advantage in home runs allowed (0.73 per nine innings vs 1.3). By the career numbers, Valerio De Los Santos 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.