Bob Blewett vs. William Parson — Career Comparison

On the career pitching numbers, Bob Blewett posted a stronger line than William Parson. Bob Blewett posted stronger numbers in WHIP (1.643 vs 1.856) and home runs allowed (0 per nine innings vs 0.6). By the career numbers, Bob Blewett 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.