The New York Giants have the lowest ERA by a team in a postseason, with an ERA of 0.00 in 1905.

	TEAM	ERA	SEASON	G	W%	W	L	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Giants	0.00	1905	5	.800	4	1	5	25	4	4	0	45.0	24	0	3	0	5	1	0	164	1	5.00	1.00	5.00	0.00	15.2	3.0	0.64	.180	0.60	4.80
2	Orioles	0.50	1966	4	1.000	4	0	4	28	3	3	0	36.0	17	2	2	1	13	0	1	134	1	7.00	3.25	2.15	0.25	20.9	9.7	0.83	.174	0.50	4.25
3	Yankees	0.73	1950	4	1.000	4	0	4	24	2	1	1	37.0	26	3	5	0	7	1	2	142	0	5.84	1.70	3.43	0.00	16.9	4.9	0.89	.236	1.22	6.32
4	Cubs	0.75	1907	5	1.000	4	0	5	22	4	1	0	48.0	37	4	6	0	9	1	0	185	0	4.13	1.69	2.44	0.00	11.9	4.9	0.96	.242	1.13	6.94
5	Indians	0.89	1920	7	.714	5	2	7	20	5	2	0	61.0	44	6	8	0	10	0	1	230	1	2.95	1.48	2.00	0.00	8.7	4.3	0.89	.220	1.18	6.49
6	Dodgers	1.00	1963	4	1.000	4	0	4	37	3	1	1	36.0	22	4	4	2	5	1	1	136	0	9.25	1.25	7.40	0.50	27.2	3.7	0.75	.220	1.00	5.50
7	Cubs	1.04	1918	6	.333	2	4	6	21	4	1	0	52.0	32	6	9	0	16	1	1	197	0	3.63	2.77	1.31	0.00	10.7	8.1	0.92	.201	1.56	5.54
8	Orioles	1.10	1983	9	.778	7	2	9	55	3	2	3	82.0	59	10	12	4	19	3	0	316	3	6.04	2.09	2.89	0.44	17.4	6.0	0.95	.234	1.32	6.48
9	Braves	1.15	1914	4	1.000	4	0	4	28	3	1	0	39.0	22	5	6	0	13	0	2	144	1	6.46	3.00	2.15	0.00	19.4	9.0	0.90	.214	1.38	5.08
10	Yankees	1.22	1939	4	1.000	4	0	4	22	2	1	0	37.0	27	5	8	0	6	1	0	142	0	5.35	1.46	3.67	0.00	15.5	4.2	0.89	.239	1.95	6.57
11	Rays	1.23	2022	2	.000	0	2	2	26	0	0	0	22.0	13	3	3	2	3	2	0	81	0	10.64	1.23	8.67	0.82	32.1	3.7	0.73	.229	1.23	5.32
12	Nationals	1.23	2014	4	.250	1	3	4	24	0	0	0	44.0	35	6	9	1	11	1	2	175	1	4.91	2.25	2.18	0.20	13.7	6.3	1.05	.246	1.84	7.16
13	Athletics	1.29	1911	6	.667	4	2	6	44	5	0	0	55.2	33	8	13	0	14	3	0	212	1	7.11	2.26	3.14	0.00	20.8	6.6	0.84	.219	2.10	5.34
14	White Sox	1.33	1906	6	.667	4	2	6	28	4	1	1	54.0	36	8	18	0	18	2	1	217	4	4.67	3.00	1.56	0.00	12.9	8.3	1.00	.213	3.00	6.00
15	Cubs	1.38	2018	1	.000	0	1	1	13	0	0	0	13.0	11	2	2	0	3	0	0	52	1	9.00	2.08	4.33	0.00	25.0	5.8	1.08	.306	1.38	7.62
16	Yankees	1.40	1943	5	.800	4	1	5	26	3	1	1	45.0	37	7	9	2	11	0	3	181	0	5.20	2.20	2.36	0.40	14.4	6.1	1.07	.246	1.80	7.40
17	Giants	1.46	1954	4	1.000	4	0	4	23	1	0	2	37.0	26	6	9	3	16	1	2	157	1	5.59	3.89	1.44	0.73	14.6	10.2	1.14	.202	2.19	6.32
18	Red Sox	1.47	1916	5	.800	4	1	5	19	3	0	1	49.0	34	8	13	1	14	2	1	192	1	3.49	2.57	1.36	0.18	9.9	7.3	0.98	.212	2.39	6.24
19	Browns	1.49	1944	6	.333	2	4	6	43	3	0	0	54.1	49	9	16	3	19	0	6	230	0	7.12	3.15	2.26	0.50	18.7	8.3	1.25	.279	2.65	8.12
20	Orioles	1.50	2024	2	.000	0	2	2	14	0	0	0	18.0	14	3	3	0	6	2	0	72	0	7.00	3.00	2.33	0.00	19.4	8.3	1.11	.280	1.50	7.00
21	Giants	1.53	1933	5	.800	4	1	5	25	3	0	0	47.0	37	8	11	2	13	0	1	189	2	4.79	2.49	1.92	0.38	13.2	6.9	1.06	.235	2.11	7.09
22	Yankees	1.60	1961	5	.800	4	1	5	27	1	1	1	45.0	35	8	13	3	8	3	3	181	0	5.40	1.60	3.38	0.60	14.9	4.4	0.96	.229	2.60	7.00
23	Reds	1.63	1919	8	.625	5	3	8	30	5	2	0	72.0	59	13	20	1	15	3	0	288	0	3.75	1.88	2.00	0.13	10.4	5.2	1.03	.243	2.50	7.38
24	Athletics	1.67	1905	5	.200	1	4	5	26	5	1	0	43.0	33	8	15	0	15	2	2	175	1	5.44	3.14	1.73	0.00	14.9	8.6	1.12	.250	3.14	6.91
25	Red Sox	1.70	1918	6	.667	4	2	6	14	5	1	1	53.0	37	10	10	0	18	2	0	200	1	2.38	3.06	0.78	0.00	7.0	9.0	1.04	.223	1.70	6.28