Billy Wagner

Billy Wagner represents pure per-inning dominance at a historic level. He finished with a 2.31 career ERA and an elite 187 ERA+ across more than 900 innings. His 11.9 strikeouts per nine innings remains one of the highest rates ever for a reliever. Wagner’s fastball overwhelmed hitters despite his smaller frame and remained electric into his late 30s. He compiled 422 saves while frequently pitching for non-dynastic teams. His WHIP under 1.00 highlights how rarely he allowed baserunners. Wagner’s strikeout-to-walk ratios were consistently elite throughout his career. Although his postseason résumé lacks defining moments, his regular season dominance was overwhelming. On a per-inning basis, few closers in history were more overpowering.