Overview
Relief pitchers enter the game after the starter departs, broadly categorized as middle relievers (setup men) and closers. As NPB has tightened starter pitch count management, reliever importance has grown dramatically, establishing the winning formula of a fixed setup-to-closer handoff. Hanshin's JFK trio (Jeff Williams, Koji Fujikawa, Tomoyuki Kubota) was a legendary bullpen that anchored the 2005 championship. Relievers typically throw harder due to shorter outings at maximum effort, but face fatigue from consecutive appearances. Recent innovations include the opener strategy, where a reliever starts the first inning before the primary pitcher takes over.