1959 MLB Earned Run Average by Team

The Chicago White Sox led all of MLB in earned run average in 1959, with 3.29, 0.18 ahead of the San Francisco Giants. The average across 16 MLB teams is 3.91.

Led all of MLB in 1959 Chicago White Sox 156 games

3.29 Earned Run Average 0.18 clear of San Francisco Giants

#	Team	League	G	ERA
1	Chicago White Sox	AL	156	3.29
2	San Francisco Giants	NL	154	3.47
3	Milwaukee Braves	NL	157	3.51
4	Baltimore Orioles	AL	155	3.56
5	New York Yankees	AL	155	3.60
6	Cleveland Indians	AL	154	3.75
7	Los Angeles Dodgers	NL	156	3.79
8	Pittsburgh Pirates	NL	155	3.90
	MLB average			3.91
9	Chicago Cubs	NL	155	4.01
9	Washington Senators	AL	154	4.01
11	Boston Red Sox	AL	154	4.17
12	Detroit Tigers	AL	154	4.20
13	Philadelphia Phillies	NL	155	4.27
14	Cincinnati Redlegs	NL	154	4.31
15	St. Louis Cardinals	NL	154	4.34
16	Kansas City Athletics	AL	154	4.35

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.