Don Brennan vs. Seth Martinez — Career Comparison

Looking at the career totals, Don Brennan and Seth Martinez are fairly close on the surface numbers. Seth Martinez posted stronger numbers in ERA (4 vs 4.19) and WHIP (1.319 vs 1.552). Don Brennan had the advantage in home runs allowed (0.32 per nine innings vs 1.06). By the career numbers, Seth Martinez 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.