most walks allowed in a single season since 1947

Since 1947, Nolan Ryan has given up the most walks in a season, with 204 allowed in 1977.

Interpreted as:

most walks allowed with a minimum of 1 IP per team game by a player in a single season since 1947

	NAME	BB	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Nolan Ryan N. Ryan	204	1977	CAL	37	19	16	.543	37	2.77	341	22	4	0	299.0	198	92	110	12	9	0	7	1,272	21	10.26	6.14	1.67	0.36	26.8	16.0	1.34	.263	3.31	72	3.11	79	5.96	27.9
2	Nolan Ryan N. Ryan	202	1974	CAL	42	22	16	.579	41	2.89	367	26	3	0	332.2	221	107	127	18	9	1	3	1,392	9	9.93	5.46	1.82	0.49	26.4	14.5	1.27	.255	3.44	85	2.97	84	5.98	20.2
3	Sam Jones S. Jones	185	1955	CHC	36	14	20	.412	34	4.10	198	12	4	0	241.2	175	110	118	22	14	1	5	1,070	5	7.37	6.89	1.07	0.82	18.5	17.3	1.49	.235	4.39	100	4.38	106	6.52	-6.3
4	Nolan Ryan N. Ryan	183	1976	CAL	39	17	18	.486	39	3.36	327	21	7	0	284.1	193	106	117	13	5	0	2	1,196	5	10.35	5.79	1.79	0.41	27.3	15.3	1.32	.269	3.70	99	2.91	85	6.11	16.5
5	Bob Turley B. Turley	181	1954	BAL	35	14	15	.483	35	3.46	185	14	0	0	247.1	178	95	106	7	7	0		1,092	5	6.73	6.59	1.02	0.25	16.9	16.6	1.45	.240	3.86	99	3.55	101	6.48	-1.8
6	Tommy Byrne T. Byrne	179	1949	NYY	32	15	7	.682	30	3.72	129	12	3	0	196.0	125	81	84	11	13	2		880	4	5.92	8.22	0.72	0.51	14.7	20.3	1.55	.208	3.86	92	4.86	120	5.74	-19
7	Bob Turley B. Turley	177	1955	NYY	36	17	13	.567	34	3.06	210	13	6	1	246.2	168	84	92	16	7	2	4	1,075	7	7.66	6.46	1.19	0.58	19.5	16.5	1.40	.229	3.36	82	3.75	102	6.13	-3.2
8	Phil Niekro P. Niekro	164	1977	ATL	44	16	20	.444	43	4.03	262	20	2	0	330.1	315	148	166	26	8	1	12	1,428	17	7.14	4.47	1.60	0.71	18.3	11.5	1.45	.299	4.52	95	3.73	88	8.58	18.1
9	Nolan Ryan N. Ryan	162	1973	CAL	41	21	16	.568	39	2.87	383	26	4	1	326.0	238	104	113	18	7	2	2	1,355	15	10.57	4.47	2.36	0.50	28.3	12.0	1.23	.280	3.12	80	2.48	69	6.57	40.9
10	Tommy Byrne T. Byrne	160	1950	NYY	31	15	9	.625	31	4.74	118	10	2	0	203.1	188	107	115	23	17	0		951	3	5.22	7.08	0.74	1.02	12.4	16.8	1.71	.261	5.09	108	5.51	129	8.32	-29.6
11	Joe Coleman J. Coleman	158	1974	DET	41	14	12	.538	41	4.32	177	11	2	0	285.2	272	137	160	30	12	0	13	1,262	13	5.58	4.98	1.12	0.95	14.0	12.5	1.51	.273	5.04	114	4.48	120	8.57	-22.6
12	Nolan Ryan N. Ryan	157	1972	CAL	39	19	16	.543	39	2.28	329	20	9	0	284.0	166	72	80	14	10	0	4	1,154	18	10.43	4.98	2.10	0.44	28.5	13.6	1.14	.236	2.54	79	2.48	83	5.26	16.6
13	Herb Score H. Score	154	1955	CLE	33	16	10	.615	32	2.85	245	11	2	0	227.1	158	72	85	18	1	0	1	978	12	9.70	6.10	1.59	0.71	25.1	15.7	1.37	.250	3.37	72	3.29	84	6.26	15.6
14	Sam McDowell S. McDowell	153	1971	CLE	35	13	17	.433	31	3.40	192	8	2	1	214.2	160	81	89	22	3	3	13	943	13	8.05	6.41	1.25	0.92	20.4	16.2	1.46	.241	3.73	94	4.17	113	6.71	-10.4
15	Randy Johnson R. Johnson	152	1991	SEA	33	13	10	.565	33	3.98	228	2	1	0	201.1	151	89	96	15	12	0	0	889	12	10.19	6.79	1.50	0.67	25.6	17.1	1.50	.282	4.29	96	4.00	99	6.75	1
16	J.R. Richard	151	1976	HOU	39	20	15	.571	39	2.75	214	14	3	0	291.0	221	89	105	14	4	0	4	1,218	13	6.62	4.67	1.42	0.43	17.6	12.4	1.28	.248	3.25	84	3.38	101	6.84	-1.8
17	Nolan Ryan N. Ryan	148	1978	CAL	31	10	13	.435	31	3.72	260	14	3	0	234.2	183	97	106	12	3	0	7	1,008	13	9.97	5.68	1.76	0.46	25.8	14.7	1.41	.292	4.07	103	2.95	79	7.02	20.3
18	Bill Stoneman B. Stoneman	146	1971	MON	39	17	16	.515	38	3.15	251	19	3	0	294.2	243	103	112	20	5	1	11	1,243	10	7.67	4.46	1.72	0.61	20.2	11.7	1.32	.272	3.42	89	3.16	92	7.42	9.2
19	Bob Lemon B. Lemon	146	1950	CLE	44	23	11	.676	37	3.84	170	22	3	3	288.0	281	123	144	28	2	5		1,254	5	5.31	4.56	1.16	0.88	13.6	11.6	1.48	.279	4.50	89	4.21	101	8.78	-2.1
20	Randy Johnson R. Johnson	144	1992	SEA	31	12	14	.462	31	3.77	241	6	2	0	210.1	154	88	104	13	18	0	1	922	13	10.31	6.16	1.67	0.56	26.1	15.6	1.42	.279	4.45	96	3.60	91	6.59	7.9
21	Paul Foytack P. Foytack	142	1956	DET	43	15	13	.536	33	3.59	184	16	1	1	256.0	211	102	114	24	2	5	4	1,098	8	6.47	4.99	1.30	0.84	16.8	12.9	1.38	.251	4.01	86	3.84	95	7.42	5.3
22	J.R. Richard	141	1978	HOU	36	18	11	.621	36	3.11	303	16	3	0	275.1	192	95	104	12	2	0	4	1,139	16	9.90	4.61	2.15	0.39	26.6	12.4	1.21	.264	3.40	94	2.50	74	6.28	26.9
23	Phil Marchildon P. Marchildon	141	1947	PHA	35	19	9	.679	35	3.22	128	21	2	0	276.2	228	99	110	15	7	0		1,172	1	4.16	4.59	0.91	0.49	10.9	12.0	1.33	.242	3.58	87	3.88	103	7.42	-3.2
24	Johnny Lindell J. Lindell	139	1953	TOT	32	6	17	.261	26	4.66	118	15	1	0	199.0	195	103	122	17	6	4		910	11	5.34	6.29	0.85	0.77	13.0	15.3	1.68	.283	5.52	106	4.70	108	8.82	-7.1
25	J.R. Richard	138	1975	HOU	33	12	10	.545	31	4.39	176	7	1	0	203.0	178	99	107	8	4	1	0	905	20	7.80	6.12	1.28	0.35	19.4	15.2	1.56	.294	4.74	129	3.45	100	7.89	-0.6