Grant Balfour vs. Brent Gaff — Career Comparison

Looking at the career totals, Grant Balfour and Brent Gaff are fairly close on the surface numbers. Grant Balfour posted stronger numbers in ERA (3.49 vs 4.06) and WHIP (1.245 vs 1.544). Brent Gaff had the advantage in home runs allowed (0.5 per nine innings vs 0.78). By the career numbers, Grant Balfour 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.