Donald Jarmon vs. Bill Singer — Career Comparison

On the career pitching numbers, Bill Singer posted a stronger line than Donald Jarmon. Bill Singer posted stronger numbers in ERA (3.39 vs 11.37) and WHIP (1.280 vs 1.974). By the career numbers, Bill Singer 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.