The Boston Red Sox threw their most shutouts in a season in 1918, with 25 shutouts.

Interpreted as:

red sox largest shutout in a regular season

	TEAM	SHO	SEASON	G	W%	W	L	GS	ERA	SO	CG	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	Red Sox	25	1918	126	.595	75	51	126	2.31	392	105	2	1120.0	931	287	381	9	380	31		4,557	29	3.15	3.05	1.03	0.07	8.6	8.3	1.17	.246	3.06	7.48
2	Red Sox	23	1916	156	.591	91	63	156	2.48	584	76	16	1410.2	1,221	388	480	10	463	38		5,601	26	3.73	2.95	1.26	0.06	10.4	8.3	1.19	.269	3.06	7.79
3	Red Sox	23	1914	159	.595	91	62	159	2.36	602	88	7	1427.1	1,207	375	510	18	393	32		5,541	22	3.80	2.48	1.53	0.11	10.9	7.1	1.12	.264	3.22	7.61
4	Americans	21	1904	157	.617	95	59	157	2.12	612	148	1	1406.0	1,208	331	466	31	233	29		5,448	22	3.92	1.49	2.63	0.20	11.2	4.3	1.02	.259	2.98	7.73
5	Americans	20	1903	141	.659	91	47	141	2.57	579	123	4	1255.0	1,142	358	505	23	269	36		5,027	18	4.15	1.93	2.15	0.16	11.5	5.4	1.12	.272	3.62	8.19
6	Red Sox	18	1972	155	.548	85	70	155	3.47	918	48	25	1382.2	1,309	533	620	101	512	39	49	5,875	32	5.98	3.33	1.79	0.66	15.6	8.7	1.32	.281	4.04	8.52
7	Red Sox	18	1912	154	.691	105	47	154	2.76	712	108	6	1362.0	1,243	417	544	18	385	35		5,442	20	4.70	2.54	1.85	0.12	13.1	7.1	1.20	.285	3.59	8.21
8	Americans	17	1907	155	.396	59	90	155	2.45	517	100	7	1414.0	1,222	385	556	22	337	39		5,570	24	3.29	2.14	1.53	0.14	9.3	6.1	1.10	.258	3.54	7.78
9	Red Sox	16	1949	155	.623	96	58	155	3.97	598	84	16	1377.0	1,375	608	667	82	661	24		6,005	27	3.91	4.32	0.90	0.54	10.0	11.0	1.48	.279	4.36	8.99
10	Red Sox	16	1915	155	.669	101	50	155	2.39	634	81	15	1397.0	1,164	371	499	18	446	46		5,522	29	4.08	2.87	1.42	0.12	11.5	8.1	1.15	.262	3.21	7.50
11	Red Sox	15	1946	156	.675	104	50	156	3.38	667	79	20	1396.2	1,359	525	594	89	501	14		5,953	15	4.30	3.23	1.33	0.57	11.2	8.4	1.33	.271	3.83	8.76
12	Red Sox	15	1945	157	.461	71	83	157	3.80	490	71	13	1390.2	1,389	587	674	58	656	26		6,063	30	3.17	4.25	0.75	0.38	8.1	10.8	1.47	.275	4.36	8.99
13	Red Sox	15	1919	138	.482	66	71	138	3.30	380	89	8	1221.1	1,249	448	552	16	421	28		4,983	36	2.80	3.10	0.90	0.12	7.6	8.4	1.37	.298	4.07	9.20
14	Red Sox	14	1978	163	.607	99	64	163	3.54	706	57	26	1472.2	1,530	579	657	137	464	35	45	6,274	16	4.31	2.84	1.52	0.84	11.3	7.4	1.35	.282	4.02	9.35
15	Red Sox	14	1968	162	.531	86	76	162	3.33	972	55	31	1447.0	1,303	536	611	115	523	50	45	6,083	73	6.05	3.25	1.86	0.72	16.0	8.6	1.26	.269	3.80	8.10
16	Red Sox	14	1953	153	.549	84	69	153	3.58	642	41	37	1373.0	1,333	546	632	92	584	23		5,931	28	4.21	3.83	1.10	0.60	10.8	9.8	1.40	.270	4.14	8.74
17	Red Sox	14	1917	157	.592	90	62	157	2.20	509	115	7	1421.1	1,197	347	457	12	413	51		5,639	29	3.22	2.62	1.23	0.08	9.0	7.3	1.13	.255	2.89	7.58
18	Americans	14	1905	153	.513	78	74	153	2.84	652	124	1	1356.1	1,198	428	564	33	292	43		5,352	25	4.33	1.94	2.23	0.22	12.2	5.5	1.10	.269	3.74	7.95
19	Red Sox	13	1987	162	.481	78	84	162	4.77	1,034	47	16	1436.0	1,584	761	825	190	517	31	38	6,265	37	6.48	3.24	2.00	1.19	16.5	8.3	1.46	.310	5.17	9.93
20	Red Sox	12	1913	151	.527	79	71	151	2.94	710	83	10	1358.1	1,323	444	610	6	442	32		5,522	29	4.70	2.93	1.61	0.04	12.9	8.0	1.30	.304	4.04	8.77
21	Red Sox	12	1908	155	.487	75	79	155	2.28	624	102	7	1380.1	1,200	349	515	18	364	46		5,471	41	4.07	2.37	1.71	0.12	11.4	6.7	1.13	.267	3.36	7.82
22	Red Sox	11	1984	162	.531	86	76	162	4.18	927	40	32	1442.0	1,524	669	764	141	517	30	38	6,271	37	5.79	3.23	1.79	0.88	14.8	8.2	1.42	.297	4.77	9.51
23	Red Sox	11	1977	161	.602	97	64	161	4.11	758	40	40	1428.0	1,555	652	712	158	378	25	31	6,076	15	4.78	2.38	2.01	1.00	12.5	6.2	1.35	.294	4.49	9.80
24	Red Sox	11	1948	155	.619	96	59	155	4.26	513	70	13	1379.1	1,445	653	720	83	592	19		6,032	26	3.35	3.86	0.87	0.54	8.5	9.8	1.48	.282	4.70	9.43
25	Red Sox	11	1947	157	.539	83	71	157	3.81	586	64	20	1391.1	1,383	589	669	84	575	16		5,972	36	3.79	3.72	1.02	0.54	9.8	9.6	1.41	.276	4.33	8.95