Johnny Grodzicki vs. Jack O'Connor — Career Comparison

Looking at the career totals, Johnny Grodzicki and Jack O'Connor are fairly close on the surface numbers. Johnny Grodzicki posted stronger numbers in ERA (4.43 vs 4.89) and WHIP (1.598 vs 1.657). Jack O'Connor had the advantage in home runs allowed (1.02 per nine innings vs 1.33). By the career numbers, Johnny Grodzicki 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.