Ryan Kohlmeier vs. Si Simmons — Career Comparison

On the career pitching numbers, Si Simmons posted a stronger line than Ryan Kohlmeier. Si Simmons posted stronger numbers in WHIP (1.500 vs 1.731) and home runs allowed (1.35 per nine innings vs 1.88). By the career numbers, Si Simmons 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.