Carlos Guevara vs. David Rollins — Career Comparison

Looking at the career totals, Carlos Guevara and David Rollins are fairly close on the surface numbers. Carlos Guevara had the edge in ERA (5.84 vs 7.6). By the career numbers, Carlos Guevara 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.