The Fielding Bible panel relied heavily on metrics that measure defensive effectiveness. As a result, each of the 10 winners -- the nine positions, plus one multi-position player -- was either the leader or tied for the lead in the Majors in Defensive Runs Saved at his position.
First-time winners in addition to Arenado are Giants catcher Buster Posey, Tigers second baseman Ian Kinsler, Pirates left fielder Starling Marte, Rays center fielder Kevin Kiermaier and D-backs multi-position player Ender Inciarte.
Arenado becomes the second Rockies winner. Shortstop Troy Tulowitzki, now with the Blue Jays, won the award in 2007, '10 and '11.