2010 AL Earned Run Average by Team

The Oakland Athletics led the AL in earned run average in 2010, with 3.58, 0.20 ahead of the Tampa Bay Rays. The average across 14 AL teams is 4.14.

Led the AL in 2010 Oakland Athletics 162 games

3.58 Earned Run Average 0.20 clear of Tampa Bay Rays

#	Team	G	ERA
1	Oakland Athletics	162	3.58
2	Tampa Bay Rays	162	3.78
3	Texas Rangers	162	3.93
4	Minnesota Twins	162	3.95
4	Seattle Mariners	162	3.95
6	Los Angeles Angels of Anaheim	162	4.04
7	New York Yankees	162	4.06
8	Chicago White Sox	162	4.09
	AL average		4.14
9	Boston Red Sox	162	4.20
10	Toronto Blue Jays	162	4.23
11	Cleveland Indians	162	4.30
11	Detroit Tigers	162	4.30
13	Baltimore Orioles	162	4.59
14	Kansas City Royals	162	4.97

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.