Dan Altavilla vs. Unknown Nelson — Career Comparison

Looking at the career totals, Dan Altavilla and Unknown Nelson are fairly close on the surface numbers. Dan Altavilla posted stronger numbers in ERA (4 vs 9) and WHIP (1.325 vs 2.000). Unknown Nelson had the advantage in home runs allowed (0 per nine innings vs 1.27). By the career numbers, Dan Altavilla 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.