The Cincinnati Reds bullpen managed to eek out a 4.11 ERA over the course of the 2023 regular season, a mark that landed them middle of the pack among all MLB clubs (16th). Despite the roughly league-average results, though, many of the advanced metrics were much more sour on them.
Their 4.45 SIERA, for instance, was third worst in all of baseball, while their .280 BABIP was the fourth lowest. Despite the cozy confines of GABP, their 10.1% HR/FB rate was the second best in the entire game, and that came despite a 41.0% fly-ball rate that was the second highest in all of baseball.