The Boston Red Sox had their most bases on balls in a game against the Tigers on September 17, 1920, with 18 walks.

Interpreted as:

most walks in a regular-season game red sox

	TEAM	BB	DATE	TM		OPP	RESULT	AB	R	H	2B	3B	HR	RBI	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Red Sox	18	9/17/1920	BSA	@	DET	L 13-14	44	13	9	3	1	0	4	0	4	0	0	64	14	4	2				.205	.435	.318	.754
2	Red Sox	16	8/22/1951	BSA	@	SLA	W 3-1	48	3	11	4	0	0	3	0	6	0	0	64	15	4	0		0	1	.229	.422	.313	.734
3	Red Sox	15	4/16/2014	BOS	@	CWS	W 6-4	44	6	6	2	0	0	6	2	5	2	0	64	8	2	0	3	1	1	.136	.359	.182	.541
4	Red Sox	15	5/7/1992	BOS	@	CWS	L 6-7	32	6	6	0	0	0	6	0	9	0	2	47	6	0	0	0	0	0	.188	.447	.188	.634
5	Red Sox	15	6/16/1961	BOS	vs	WSH	W 14-9	32	14	11	2	1	0	14	1	2	0	0	50	15	3	2	0	0	1	.344	.563	.469	1.031
6	Red Sox	15	7/7/1949	BSA	@	WSH	W 8-4	30	8	6	2	0	0	7	0	3	1	1	46	8	2	1			2	.200	.467	.267	.733
7	Red Sox	15	5/18/1946	BSA	@	SLA	W 18-8	43	18	17	9	0	2	18	0	5	1	0	59	32	11	1			0	.395	.552	.744	1.296
8	Red Sox	15	4/29/1924	BSA	@	WSH	W 15-6	36	15	13	5	0	0	14	0	4	0	0	55	18	5	4				.361	.549	.500	1.049
9	Red Sox	14	6/30/2017	BOS	@	TOR	W 7-4	43	7	13	6	0	0	7	0	8	2	1	57	19	6	0	0	3	2	.302	.474	.442	.916
10	Red Sox	14	4/7/2006	BOS	@	BAL	W 14-8	38	14	16	4	0	1	13	2	5	0	0	55	23	5	0	1	0	4	.421	.582	.605	1.187
11	Red Sox	14	9/1/2003	BOS	@	PHI	W 13-9	37	13	13	2	0	1	13	1	3	1	0	53	18	3	1	0	2	1	.351	.538	.486	1.025
12	Red Sox	14	6/12/2003	BOS	vs	STL	L 7-8	50	7	13	2	1	1	6	0	7	1	0	64	20	4	0	0	5	3	.260	.422	.400	.822
13	Red Sox	14	4/28/1995	BOS	vs	CWS	W 10-4	35	10	8	1	0	1	9	0	8	1	0	50	12	2	0	1	0	0	.229	.440	.343	.783
14	Red Sox	14	9/30/1949	BSA	@	WSH	W 11-9	30	11	5	0	0	0	8	0	8	0	0	46	5	0	2			3	.167	.432	.167	.598
15	Red Sox	14	9/11/1936	BSA	@	SLA	W 6-2	35	6	8	0	0	1	6	1	2	0	0	50	11	1	0				.229	.460	.314	.774
16	Red Sox	14	8/26/1932	BSA	vs	CWS	W 11-8	34	11	13	2	0	0	11	0	1	0	0	48	15	2	0				.382	.563	.441	1.004
17	Red Sox	13	7/7/2018	BOS	@	KCR	W 15-4	40	15	16	5	0	1	15	0	8	3	0	54	24	6	0	1	1	1	.400	.537	.600	1.137
18	Red Sox	13	4/1/2002	BOS	vs	TOR	L 11-12	38	11	13	1	0	4	11	0	8	0	1	52	26	5	0	1	0	0	.342	.500	.684	1.184
19	Red Sox	13	4/12/1994	BOS	@	KCR	W 22-11	41	22	15	4	2	5	19	2	5	1	0	57	38	11	0	1	0	1	.366	.526	.927	1.453
20	Red Sox	13	4/28/1989	BOS	@	TEX	L 6-7	39	6	5	1	0	1	6	0	12	1	1	53	9	2	1	0	1	1	.128	.346	.231	.577
21	Red Sox	13	5/18/1986	BOS	vs	TEX	W 5-4	31	5	9	4	0	1	3	0	9	2	2	46	16	5	2	0	2	1	.290	.500	.516	1.016
22	Red Sox	13	5/2/1971	BOS	vs	MIN	W 9-8	37	9	13	2	1	1	7	1	3	3	1	53	20	4	2	0	2	0	.351	.529	.541	1.070
23	Red Sox	13	8/15/1959	BOS	@	NYY	W 12-4	35	12	11	1	1	0	11	0	3	0	0	53	14	2	2	3	0	0	.314	.471	.400	.871
24	Red Sox	13	9/29/1956	BOS	@	NYY	W 7-5	50	7	16	1	1	0	7	0	5	0	1	65	19	2	1	1	1	2	.320	.453	.380	.833
25	Red Sox	13	5/14/1951	BSA	@	WSH	W 8-7	41	8	8	2	0	0	6	0	4	0	0	54	10	2	0		0	1	.195	.389	.244	.633