From SABR member John Dewan at ACTA Sports on June 17, 2015:
The Kansas City Royals have the best record in the American League, and similar to last season when they made an unexpected run to the World Series, defense has been their biggest separator. Lorenzo Cain and Alex Gordon have combined to save the team 20 runs according to Defensive Runs Saved (DRS), and every infield and outfield starter has been a positive defensive contributor so far this season. That advantage has helped them build a 3.5-game lead in the AL Central.
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Originally published: June 17, 2015. Last Updated: June 17, 2015.