1978 AL Earned Run Average by Team

The New York Yankees led the AL in earned run average in 1978, with 3.18, 0.24 ahead of the Texas Rangers. The average across 14 AL teams is 3.78.

Led the AL in 1978 New York Yankees 163 games

3.18 Earned Run Average 0.24 clear of Texas Rangers

#	Team	G	ERA
1	New York Yankees	163	3.18
2	Texas Rangers	162	3.42
3	Kansas City Royals	162	3.44
4	Boston Red Sox	163	3.54
5	Baltimore Orioles	161	3.56
6	Oakland Athletics	162	3.62
7	Milwaukee Brewers	162	3.65
8	California Angels	162	3.67
8	Detroit Tigers	162	3.67
10	Minnesota Twins	162	3.71
	AL average		3.78
11	Cleveland Indians	159	3.99
12	Chicago White Sox	161	4.23
13	Toronto Blue Jays	161	4.54
14	Seattle Mariners	160	4.72

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.