John Foster vs. Thomas Jacquez — Career Comparison

On the career pitching numbers, John Foster posted a stronger line than Thomas Jacquez. John Foster posted stronger numbers in ERA (4.9 vs 11.05) and WHIP (1.615 vs 1.909). By the career numbers, John Foster 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.