lowest runs allowed by a team of all-time over a season

The Milwaukee Brewers have given up the fewest runs by a team in a season, with 34 runs in 1884.

	TEAM	R	SEASON	G	W%	W	L	GS	ERA	SO	CG	SHO	SV	IP	H	ER	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Brewers	34	1884	12	.667	8	4	12	2.25	139	12		0	104.0	49	26	1	13			386	7	12.03	1.13	10.69	0.09	36.0	3.4	0.60		2.94	4.24
2	Saints	57	1884	9	.250	2	6	9	3.17	44	7		0	71.0	72	25	1	27			320	7	5.58	3.42	1.63	0.13	13.8	8.4	1.39		7.23	9.13
3	Padres	114	2025	36	.639	23	13	36	3.00	310	1	1	15	317.2	244	106	30	119	12	4	1,304	8	8.78	3.37	2.61	0.85	23.8	9.1	1.14	.257	3.23	6.91
4	Quicksteps	114	1884	18	.111	2	16	18	3.04	113	15		0	142.0	165	48	4	18			625	19	7.16	1.14	6.28	0.25	18.1	2.9	1.29		7.23	10.46
5	Mets	122	2025	38	.632	24	14	38	2.89	344	0	0	11	336.0	295	108	21	127	15	0	1,414	15	9.21	3.40	2.71	0.56	24.3	9.0	1.26	.302	3.27	7.90
6	Royals	123	2025	39	.590	23	16	39	2.91	314	0	0	13	346.1	292	112	33	115	9	6	1,420	15	8.16	2.99	2.73	0.86	22.1	8.1	1.18	.273	3.20	7.59
7	Tigers	125	2025	38	.658	25	13	38	2.95	318	0	0	10	335.1	270	110	35	112	17	3	1,376	8	8.53	3.01	2.84	0.94	23.1	8.1	1.14	.263	3.35	7.25
8	Astros	129	2025	36	.500	18	18	36	3.36	330	1	0	9	315.2	250	118	33	107	11	0	1,294	7	9.41	3.05	3.08	0.94	25.5	8.3	1.13	.267	3.68	7.13
9	Twins	137	2025	38	.474	18	20	38	3.42	338	0	0	7	329.1	301	125	37	95	18	3	1,384	5	9.24	2.60	3.56	1.01	24.4	6.9	1.20	.295	3.74	8.23
10	Rangers	143	2025	38	.474	18	20	38	3.51	295	1	1	11	331.0	289	129	32	98	14	3	1,363	16	8.02	2.66	3.01	0.87	21.6	7.2	1.17	.278	3.89	7.86
11	Giants	144	2025	38	.632	24	14	38	3.39	329	0	0	12	334.1	286	126	28	123	12	3	1,392	9	8.86	3.31	2.67	0.75	23.6	8.8	1.22	.287	3.88	7.70
12	Yankees	145	2025	37	.568	21	16	37	3.59	336	0	0	10	326.0	247	130	32	143	8	1	1,362	8	9.28	3.95	2.35	0.88	24.7	10.5	1.20	.255	4.00	6.82
13	Braves	150	2025	37	.486	18	19	37	4.00	323	0	0	7	326.1	281	145	45	127	11	8	1,366	15	8.91	3.50	2.54	1.24	23.6	9.3	1.25	.274	4.14	7.75
14	Rays	150	2025	37	.432	16	21	37	3.80	290	0	0	10	333.2	295	141	50	107	14	3	1,373	5	7.82	2.89	2.71	1.35	21.1	7.8	1.20	.269	4.05	7.96
15	Mariners	154	2025	36	.611	22	14	36	3.75	294	0	0	14	328.2	308	137	32	122	9	9	1,397	9	8.05	3.34	2.41	0.88	21.0	8.7	1.31	.294	4.22	8.43
16	Dodgers	155	2025	38	.658	25	13	38	3.72	357	0	0	15	336.0	292	139	39	136	10	4	1,410	19	9.56	3.64	2.63	1.04	25.3	9.6	1.27	.291	4.15	7.82
17	Reds	156	2025	39	.487	19	20	39	3.58	330	0	0	11	347.0	273	138	47	117	14	3	1,432	14	8.56	3.03	2.82	1.22	23.0	8.2	1.12	.245	4.05	7.08
18	Brewers	156	1891	36	.583	21	15	36	2.50	137	35		0	309.2	291	86	6	120	10		1,343	11	3.98	3.49	1.14	0.17	10.2	8.9	1.33	.266	4.53	8.46
19	Phillies	161	2025	37	.595	22	15	37	3.87	366	0	0	11	332.2	317	143	37	108	14	3	1,411	13	9.90	2.92	3.39	1.00	25.9	7.7	1.28	.316	4.36	8.58
20	Cubs	165	2025	38	.579	22	16	38	3.95	298	0	0	8	342.0	318	150	37	129	13	5	1,457	8	7.84	3.39	2.31	0.97	20.5	8.9	1.31	.287	4.34	8.37
21	Cardinals	167	2025	38	.500	19	19	38	4.08	266	0	0	9	337.2	306	153	29	120	12	5	1,422	10	7.09	3.20	2.22	0.77	18.7	8.4	1.26	.278	4.45	8.16
22	White Sox	167	2025	38	.263	10	28	38	4.25	274	0	0	1	324.1	309	153	41	144	25	5	1,419	10	7.60	4.00	1.90	1.14	19.3	10.1	1.40	.287	4.63	8.57
23	Guardians	171	2025	37	.595	22	15	37	4.31	304	0	0	13	326.0	326	156	42	141	10	2	1,418	15	8.39	3.89	2.16	1.16	21.4	9.9	1.43	.308	4.72	9.00
24	Blue Jays	171	2025	37	.459	17	20	37	4.38	346	0	0	11	330.2	299	161	55	118	20	6	1,396	13	9.42	3.21	2.93	1.50	24.8	8.5	1.26	.285	4.65	8.14
25	Red Sox	172	2025	39	.513	20	19	39	3.91	322	0	0	9	347.2	332	151	36	120	19	4	1,483	7	8.34	3.11	2.68	0.93	21.7	8.1	1.30	.300	4.45	8.59