Top teams in ERA+ in the AL/NL since 1900

Click here to see the Stathead search results. This is all the teams that were at 130 or better. ERA+ is ERA adjusted for the league average and park effects. 130 means the team was 30% better than average.

Rk	Season	Team	Lg	ERA+
1	1906	CHC	NL	151
2	2022	LAD	NL	150
3	1909	CHC	NL	147
4	2020	LAD	NL	146
5	1905	CHC	NL	146
6	1907	CHC	NL	143
7	2021	LAD	NL	140
8	1926	PHA	AL	139
9	2017	CLE	AL	138
10	2020	CLE	AL	136
11	1942	STL	NL	135
12	1944	STL	NL	134
13	2015	STL	NL	134
14	2018	HOU	AL	134
15	2022	HOU	AL	134
16	2016	CHC	NL	133
17	2002	ATL	NL	133
18	1910	PHA	AL	133
19	1954	CLE	AL	133
20	1954	NYG	NL	132
21	1912	NYG	NL	132
22	1943	STL	NL	132
23	1939	NYY	AL	132
24	1997	ATL	NL	131
25	1913	NYG	NL	130

The list is dominated by the Cubs of the 19 aughts and the Dodgers of the last 3 years. No other team stands out like they do. The 1942-44 Cardinals are the only other team to appear in 3 straight years. But two of those were war years.

This is just not pitching. Good fielding plays a role here, too. So the two best teams, by far, in preventing runs over a period of three years are clearly the 1905-07 Cubs and the 2020-22 Dodgers.

The Cubs averaged 146.67 and the Dodgers averaged 145.33 (just a simple average). It might be too close to call. Maybe the Cubs should get the edge since 2020 was a short season.

The next highest would be the 1942-44 Cardinals with 133.67. They are pretty far back and, again, 1943 & 44 were WAR years.