Brandon Brennan vs. Mike Cather — Career Comparison

On the career pitching numbers, Mike Cather posted a stronger line than Brandon Brennan. Mike Cather posted stronger numbers in ERA (3.42 vs 4.21) and WHIP (1.273 vs 1.387). By the career numbers, Mike Cather 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.