1917 MLB Earned Run Average by Team

The Chicago White Sox led all of MLB in earned run average in 1917, with 2.16, 0.04 ahead of the Boston Red Sox. The average across 16 MLB teams is 2.69.

Led all of MLB in 1917 Chicago White Sox 156 games

2.16 Earned Run Average 0.04 clear of Boston Red Sox

#	Team	League	G	ERA
1	Chicago White Sox	AL	156	2.16
2	Boston Red Sox	AL	157	2.20
3	New York Giants	NL	158	2.27
4	Philadelphia Phillies	NL	154	2.46
5	Cleveland Indians	AL	156	2.52
6	Detroit Tigers	AL	154	2.56
7	Chicago Cubs	NL	157	2.62
8	New York Yankees	AL	155	2.66
	MLB average			2.69
9	Cincinnati Reds	NL	157	2.70
10	Washington Senators	AL	157	2.75
11	Boston Braves	NL	157	2.77
12	Brooklyn Robins	NL	156	2.78
13	Pittsburgh Pirates	NL	157	3.01
14	St. Louis Cardinals	NL	154	3.03
15	St. Louis Browns	AL	155	3.20
16	Philadelphia Athletics	AL	154	3.27

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.