Secondary average
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Secondary average, or SecA, is a baseball statistic that measures the sum of extra bases gained on hits, walks, and stolen bases (less times caught stealing) depicted per at bat.[1] Created by Bill James, it is a sabermetric measurement of hitting performance that seeks to evaluate the number of bases a player gained independent of batting average. Unlike batting average, which is a simple ratio of base hits to at bats, secondary average accounts for power (extra base hits), plate discipline (walks), and speed (stolen bases minus times caught stealing).[2] Secondary averages have a higher variance than batting averages.