27. Brian Fuentes (Rockies Career WAR 9.8)
Brian was the first multi-time All-Star Closer in club history. For a 4-year period, no one on the front range worried about how a close game with a lead would end with Fuentes on the mound.
A closer more from an era before him, a hard-throwing lefty with a quirky delivery that had many multiple-inning saves. As well as used to hold close deficits or in non-save/high-leverage situations. He never pitched less than 62 innings in a full season, while spending all but 2 years as the unquestioned closer.
His best season in Colorado came in his 2005 All-Star season where he racked up 31 saves and 91 strikeouts with a 2.91 ERA in 74.1 IP for a 165 ERA+.