Last year I conducted a study on closers, pooling together all seasons with at least 15 saves from 1980-2007. The query offered 696 pitcher-years and 220 unique game-savers, but the analysis of their stats in and out of save situations was a solid first step at best. The results, which were deemed viable via a paired samples t-test that compares the means of two different variables, showed that closers did post somewhat improved rates in their save opportunities. The discrepancies in the rate stats measured (ERA, K/9, BB/9), though they were significant, differed only by plus or minus 0.25 units per nine innings.