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2011 NL Earned Run Average by Team

Every team's total, added up from its players' lines. Earned runs allowed per nine innings

The Philadelphia Phillies led the NL in earned run average in 2011, with 3.02, 0.19 ahead of the San Francisco Giants. The average across 16 NL teams is 3.82.

Led the NL in 2011 Philadelphia Phillies 162 games
3.02 Earned Run Average 0.19 clear of San Francisco Giants

A team's total is its players' numbers for the club added up, so a player traded mid-season counts for each team only what he did there. Rates such as ERA and batting average are worked out from the team's summed totals, not averaged across players.