1907 MLB Earned Run Average by Team

The Chicago Cubs led all of MLB in earned run average in 1907, with 1.73, 0.49 ahead of the Chicago White Sox. The average across 16 MLB teams is 2.51.

Led all of MLB in 1907 Chicago Cubs 155 games

1.73 Earned Run Average 0.49 clear of Chicago White Sox

#	Team	League	G	ERA
1	Chicago Cubs	NL	155	1.73
2	Chicago White Sox	AL	157	2.22
3	Cleveland Naps	AL	158	2.26
4	Pittsburgh Pirates	NL	157	2.30
5	Detroit Tigers	AL	153	2.33
6	Philadelphia Athletics	AL	150	2.35
7	Brooklyn Superbas	NL	153	2.38
8	Cincinnati Reds	NL	156	2.41
9	Philadelphia Phillies	NL	149	2.43
10	Boston Americans	AL	155	2.45
10	New York Giants	NL	155	2.45
	MLB average			2.51
12	St. Louis Browns	AL	155	2.61
13	St. Louis Cardinals	NL	155	2.70
14	New York Highlanders	AL	152	3.03
15	Washington Senators	AL	154	3.11
16	Boston Doves	NL	152	3.33

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.