1913 MLB Earned Run Average by Team

The Chicago White Sox led all of MLB in earned run average in 1913, with 2.33, 0.09 ahead of the New York Giants. The average across 16 MLB teams is 3.07.

Led all of MLB in 1913 Chicago White Sox 153 games

2.33 Earned Run Average 0.09 clear of New York Giants

#	Team	League	G	ERA
1	Chicago White Sox	AL	153	2.33
2	New York Giants	NL	156	2.42
3	Cleveland Naps	AL	155	2.54
4	Washington Senators	AL	155	2.73
5	Pittsburgh Pirates	NL	155	2.90
6	Boston Red Sox	AL	151	2.94
7	St. Louis Browns	AL	155	3.06
	MLB average			3.07
8	Brooklyn Superbas	NL	152	3.13
8	Chicago Cubs	NL	155	3.13
10	Philadelphia Phillies	NL	159	3.15
11	Boston Braves	NL	154	3.19
11	Philadelphia Athletics	AL	153	3.19
13	New York Yankees	AL	153	3.27
14	Detroit Tigers	AL	153	3.38
15	Cincinnati Reds	NL	156	3.46
16	St. Louis Cardinals	NL	153	4.23

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.