Francis Beltran vs. John Mackinson — Career Comparison

Looking at the career totals, Francis Beltran and John Mackinson are fairly close on the surface numbers. Francis Beltran posted stronger numbers in ERA (5.69 vs 7.36) and WHIP (1.695 vs 1.773). John Mackinson had the advantage in home runs allowed (1.23 per nine innings vs 1.94). By the career numbers, Francis Beltran 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.