Jack Flaherty vs. John Nelson — Career Comparison

Looking at the career totals, Jack Flaherty and John Nelson are fairly close on the surface numbers. Jack Flaherty posted stronger numbers in WHIP (1.208 vs 1.671) and home runs allowed (1.23 per nine innings vs 1.59). John Nelson had the advantage in ERA (3.65 vs 3.8). By the career numbers, Jack Flaherty 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.