Dewan: Who are the best and worst defensive teams in 2013?

From SABR member John Dewan at ACTA Sports on May 14, 2013:

More than a month into the season, the overall defensive picture is starting to take shape. Teams have only played a fifth of their total schedules, but the best and worst defensive teams have already separated by 59 Runs Saved, a total that separates them by approximately six wins.

Last season, the Braves and Blue Jays outpaced the other teams with 70 Runs Saved a piece. After a month, only the Braves have rejoined the top-five, and 11 of their 17 Runs Saved are from defensive phenom Andrelton Simmons, who leads baseball.

Here are the best defensive teams so far this season …

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Originally published: May 14, 2013. Last Updated: May 14, 2013.