Jairo Diaz vs. Gene Harris — Career Comparison

Looking at the career totals, Jairo Diaz and Gene Harris are fairly close on the surface numbers. Gene Harris posted stronger numbers in ERA (4.71 vs 4.86) and home runs allowed (0.78 per nine innings vs 1.09). Jairo Diaz had the advantage in WHIP (1.556 vs 1.676). By the career numbers, Gene Harris 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.