1972 MLB Earned Run Average by Team

The Baltimore Orioles led all of MLB in earned run average in 1972, with 2.54, 0.04 ahead of the Oakland Athletics. The average across 24 MLB teams is 3.27.

Led all of MLB in 1972 Baltimore Orioles 154 games

2.54 Earned Run Average 0.04 clear of Oakland Athletics

#	Team	League	G	ERA
1	Baltimore Orioles	AL	154	2.54
2	Oakland Athletics	AL	155	2.58
3	Los Angeles Dodgers	NL	155	2.78
4	Pittsburgh Pirates	NL	155	2.81
5	Minnesota Twins	AL	154	2.86
6	Detroit Tigers	AL	156	2.96
7	Cleveland Indians	AL	156	2.97
8	New York Yankees	AL	155	3.05
9	California Angels	AL	155	3.06
10	Chicago White Sox	AL	154	3.12
11	Cincinnati Reds	NL	154	3.21
12	Chicago Cubs	NL	156	3.22
13	Kansas City Royals	AL	154	3.24
	MLB average			3.27
14	New York Mets	NL	156	3.27
15	St. Louis Cardinals	NL	156	3.43
16	Milwaukee Brewers	AL	156	3.45
17	Boston Red Sox	AL	155	3.50
18	Texas Rangers	AL	154	3.54
19	Montreal Expos	NL	156	3.60
20	Philadelphia Phillies	NL	156	3.67
21	San Francisco Giants	NL	155	3.70
22	Houston Astros	NL	153	3.77
23	San Diego Padres	NL	153	3.78
24	Atlanta Braves	NL	155	4.27

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.