most games without giving up a walk in a season by a starting pitcher

Babe Adams has the most games pitched by a starting pitcher with exactly 0 walks allowed in a season, with 22 games in 1920.

	NAME	G	BB	SEASON	TM	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	HBP	GF	IBB	TBF	WP	K/9	BB/9	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Babe Adams B. Adams	22	0	1920	PIT	13	6	.684	22	2.11	56	11	5	0	166.0	151	39	49	4	1	0		639	3	3.04	0.00	0.22	8.8	0.0	0.91	.254	2.66	8.19
2	Christy Mathewson C. Mathewson	20	0	1914	NYG	12	8	.600	20	2.56	44	16	4	0	165.0	167	47	63	7	1	0		646	4	2.40	0.00	0.38	6.8	0.0	1.01	.269	3.44	9.11
3	Phil Hughes P. Hughes	19	0	2014	MIN	11	4	.733	19	2.45	111	1	0	0	128.2	127	35	39	8	2	0	0	511	1	7.76	0.00	0.56	21.7	0.0	0.99	.305	2.73	8.88
4	Greg Maddux G. Maddux	19	0	2001	ATL	12	4	.750	19	2.33	89	1	1	0	127.2	117	33	38	8	2	0	0	489	1	6.27	0.00	0.56	18.2	0.0	0.92	.279	2.68	8.25
5	Bob Tewksbury B. Tewksbury	19	0	1992	STL	12	2	.857	19	1.49	61	5	0	0	145.0	126	24	26	9	0	0	0	549	1	3.79	0.00	0.56	11.1	0.0	0.87	.244	1.61	7.82
6	Grover Alexander G. Alexander	19	0	1923	CHC	10	7	.588	19	3.29	33	12	1	0	145.0	149	53	63	8	0	0		583	0	2.05	0.00	0.50	5.7	0.0	1.03	.260	3.91	9.25
7	Christy Mathewson C. Mathewson	19	0	1913	NYG	14	4	.778	19	2.03	39	16	2	0	159.2	146	36	46	7	0	0		612	2	2.20	0.00	0.39	6.4	0.0	0.91	.246	2.59	8.23
8	Christy Mathewson C. Mathewson	19	0	1908	NYG	14	4	.778	19		97	18	4	0	165.0	106		28	4	1	0		598	0	5.29	0.00	0.22	16.2	0.0	0.64	.206	1.53	5.78
9	Carlos Silva C. Silva	18	0	2005	MIN	7	3	.700	18	3.12	44	2	0	0	124.0	132	43	49	16	3	0	0	485	0	3.19	0.00	1.16	9.1	0.0	1.06	.275	3.56	9.58
10	David Wells D. Wells	18	0	2004	SDP	9	4	.692	18	2.90	66	0	0	0	118.0	109	38	42	13	1	0	0	462	1	5.03	0.00	0.99	14.3	0.0	0.92	.251	3.20	8.31
11	David Wells D. Wells	18	0	2003	NYY	10	3	.769	18	3.51	59	3	1	0	130.2	142	51	53	13	6	0	0	525	1	4.06	0.00	0.90	11.2	0.0	1.09	.289	3.65	9.78
12	Greg Maddux G. Maddux	18	0	1997	ATL	12	2	.857	18	2.17	92	4	2	0	124.2	102	30	30	4	4	0	0	460	0	6.64	0.00	0.29	20.0	0.0	0.82	.272	2.17	7.36
13	Gary Nolan G. Nolan	18	0	1976	CIN	8	4	.667	18	2.94	71	5	1	0	128.2	121	42	44	16	0	0	0	497	0	4.97	0.00	1.12	14.3	0.0	0.94	.256	3.08	8.46
14	Ryne Stanek R. Stanek	17	0	2018	TBR	0	0		17	1.78	36	0	0	0	25.1	15	5	5	3	1	0	0	90	1	12.79	0.00	1.07	40.0	0.0	0.59	.240	1.78	5.33
15	Greg Maddux G. Maddux	17	0	2007	SDP	9	4	.692	17	3.67	62	1	0	0	100.2	111	41	41	6	3	0	0	406	1	5.54	0.00	0.54	15.3	0.0	1.10	.313	3.67	9.92
16	Brad Radke B. Radke	17	0	2005	MIN	4	6	.400	17	4.18	69	3	1	0	114.0	127	53	58	18	1	0	0	463	1	5.45	0.00	1.42	14.9	0.0	1.11	.291	4.58	10.03
17	Jimmy Key J. Key	17	0	1989	TOR	9	4	.692	17	2.97	76	3	1	0	115.0	109	38	39	11	0	0	0	447	3	5.95	0.00	0.86	17.0	0.0	0.95	.272	3.05	8.53
18	LaMarr Hoyt L. Hoyt	17	0	1983	CWS	12	4	.750	17	3.66	67	5	1	0	123.0	111	50	54	18	0	0	0	473	0	4.90	0.00	1.32	14.2	0.0	0.90	.240	3.95	8.12
19	Grover Alexander G. Alexander	17	0	1916	PHN	14	3	.824	17	0.86	67	16	11	0	147.0	112	14	21	0	5	0		541	1	4.10	0.00	0.00	12.4	0.0	0.76	.239	1.29	6.86
20	Christy Mathewson C. Mathewson	17	0	1911	NYG	11	6	.647	17	0.21	53	13	3	0	131.0	134		41	3	0	0		502	0	3.64	0.00	0.21	10.6	0.0	1.02	.294	2.82	9.21
21	Addie Joss A. Joss	17	0	1908	CLE	10	5	.667	17		53	12	3	0	137.0	100		39	1	1	0		517	1	3.48	0.00	0.07	10.3	0.0	0.73	.214	2.56	6.57
22	George Kirby G. Kirby	16	0	2023	SEA	8	3	.727	16	2.41	91	0	0	0	100.2	88	27	29	8	3	0	0	384	0	8.14	0.00	0.72	23.7	0.0	0.87	.284	2.59	7.87
23	Ryne Stanek R. Stanek	16	0	2019	TBR	0	0		16	1.71	36	0	0	0	26.1	19	5	5	1	0	0	0	96	1	12.30	0.00	0.34	37.5	0.0	0.72	.305	1.71	6.49
24	Josh Tomlin J. Tomlin	16	0	2017	CLE	6	5	.545	16	4.35	66	1	0	0	89.0	97	43	45	12	2	0	0	358	1	6.67	0.00	1.21	18.4	0.0	1.09	.306	4.55	9.81
25	Jon Lieber J. Lieber	16	0	2006	PHI	8	6	.571	16	4.10	66	2	1	0	101.0	111	46	51	12	3	0	0	412	3	5.88	0.00	1.07	16.0	0.0	1.10	.299	4.54	9.89