1978 MLB Earned Run Average by Team

The Los Angeles Dodgers led all of MLB in earned run average in 1978, with 3.12, 0.06 ahead of the New York Yankees. The average across 26 MLB teams is 3.69.

Led all of MLB in 1978 Los Angeles Dodgers 162 games

3.12 Earned Run Average 0.06 clear of New York Yankees

#	Team	League	G	ERA
1	Los Angeles Dodgers	NL	162	3.12
2	New York Yankees	AL	163	3.18
3	San Diego Padres	NL	162	3.28
4	San Francisco Giants	NL	162	3.30
5	Philadelphia Phillies	NL	162	3.33
6	Montreal Expos	NL	162	3.42
6	Pittsburgh Pirates	NL	161	3.42
6	Texas Rangers	AL	162	3.42
9	Kansas City Royals	AL	162	3.44
10	Boston Red Sox	AL	163	3.54
11	Baltimore Orioles	AL	161	3.56
12	St. Louis Cardinals	NL	162	3.59
13	Oakland Athletics	AL	162	3.62
14	Houston Astros	NL	162	3.63
15	Milwaukee Brewers	AL	162	3.65
16	California Angels	AL	162	3.67
16	Detroit Tigers	AL	162	3.67
	MLB average			3.69
18	Minnesota Twins	AL	162	3.71
19	Cincinnati Reds	NL	161	3.82
20	New York Mets	NL	162	3.87
21	Cleveland Indians	AL	159	3.99
22	Chicago Cubs	NL	162	4.06
23	Atlanta Braves	NL	162	4.10
24	Chicago White Sox	AL	161	4.23
25	Toronto Blue Jays	AL	161	4.54
26	Seattle Mariners	AL	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.