Wilson, which established this award in 2012, considers various defensive metrics in determining the winners (nine individuals and one team). That formula includes defensive WAR (25 percent), Defensive Runs Saved (25 percent), Inside Edge fielding ratings (20 percent), Inside Edge arm ratings (20 percent) and fielding percentage (10 percent). A different formula is used for pitchers and catchers.
Buxton, 23, uses his speed to his advantage, as he's the fastest player in baseball per Statcast™'s sprint speed metric. He also worked hard in the offseason to improve his jumps and reads off the bat.