Ken Penner vs. Taylor Rogers — Career Comparison

Looking at the career totals, Ken Penner and Taylor Rogers are fairly close on the surface numbers. Taylor Rogers posted stronger numbers in ERA (3.34 vs 3.55) and WHIP (1.236 vs 1.500). Ken Penner had the advantage in home runs allowed (0.36 per nine innings vs 0.95). By the career numbers, Taylor Rogers 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.