Zack Kelly vs. Darrell Osteen — Career Comparison

Looking at the career totals, Zack Kelly and Darrell Osteen are fairly close on the surface numbers. Zack Kelly posted stronger numbers in ERA (4.15 vs 8.05) and WHIP (1.348 vs 2.079). Darrell Osteen had the advantage in home runs allowed (0.95 per nine innings vs 1.17). By the career numbers, Zack Kelly 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.