Unknown Latimer vs. Jon Lester — Career Comparison

Looking at the career totals, Unknown Latimer and Jon Lester are fairly close on the surface numbers. Jon Lester posted stronger numbers in ERA (3.66 vs 4.06) and WHIP (1.283 vs 1.422). Unknown Latimer had the advantage in home runs allowed (0.31 per nine innings vs 0.97). By the career numbers, Jon Lester 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.