most walks per nine innings in a season since 1900 minimum 10 ip

Since 1900, Red Bullock has walked the highest walks per nine innings with 10.0+ innings pitched in a season, with 19.98 BB/9 in 1936.

Interpreted as:

most walks per nine innings by a player in a season since 1900 minimum 10 ip

	NAME	BB/9	IP	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Red Bullock R. Bullock	19.98	16.2	1936	PHA	12	0	2	.000	2	14.04	7	0	0	0	19	26	32	0	37	0	3		108	5	3.78	0.19	0.00	6.5	34.3	3.36	.297	17.28	276	9.08	187	10.26	-7.7
2	Mitch Williams M. Williams	17.72	10.2	1995	CAL	20	1	2	.333	0	6.75	9	0	0	0	13	8	10	1	21	2	3	0	65	2	7.59	0.43	0.84	13.8	32.3	3.19	.375	8.44	142	9.10	191	10.97	-5
3	Bruno Haas B. Haas	17.58	14.1	1915	PHA	6	0	1	.000	2	11.93	7	1	0	0	23	19	27	0	28	0	1		85	6	4.40	0.25	0.00	8.2	32.9	3.56	.460	16.95	411	7.29	249	14.44	-7
4	Elmer Miller E. Miller	16.68	11.1	1929	PHN	8	0	1	.000	2	11.12	5	0	0	0	12	14	18	1	21	3	2		68	1	3.97	0.24	0.79	7.4	30.9	2.91	.289	14.29	219	9.78	198	9.53	-5.6
5	Rob Dibble R. Dibble	15.72	26.1	1995	TOT	31	1	2	.333	0	7.18	26	0	0	1	16	21	21	2	46	3	8	2	143	8	8.89	0.57	0.68	18.2	32.2	2.35	.212	7.18	153	7.69	166	5.47	-9.1
6	Dick Weik D. Weik	15.63	12.2	1948	WSH	3	1	2	.333	3	5.68	8	0	0	0	14	8	8	1	22	0	0		68	0	5.68	0.36	0.71	11.8	32.4	2.84	.351	5.68	135	7.63	186	9.95	-5.1
7	Ralph Lumenti R. Lumenti	15.43	21.0	1958	WSH	8	1	2	.333	4	8.57	20	0	0	0	21	20	20	2	36	1	1	0	117	5	8.57	0.56	0.86	17.1	30.8	2.71	.328	8.57	223	7.09	183	9.00	-7.3
8	Trevor Rosenthal T. Rosenthal	15.26	15.1	2019	TOT	22	0	1	.000	0	13.50	17	0	0	0	11	23	24	0	26	4	8	0	85	9	9.98	0.65	0.00	20.0	30.6	2.41	.289	14.09	301	6.85	152	6.46	-3.9
9	Walter Beall W. Beall	15.09	11.1	1925	NYY	8	0	1	.000	1	12.71	8	0	0	0	11	16	17	0	19	3	2		63	1	6.35	0.42	0.00	12.7	30.2	2.65	.333	13.50	295	7.52	175	8.74	-4.2
10	Lance Rautzhan L. Rautzhan	14.92	12.2	1979	TOT	15	0	2	.000	0	7.82	7	0	0	1	12	11	12	0	21	1	10	2	67	6	4.97	0.33	0.00	10.4	31.3	2.61	.316	8.53	207	6.82	175	8.53	-4.2
11	Chris Codiroli C. Codiroli	14.81	10.1	1990	KCR	6	0	1	.000	2	9.58	8	0	0	0	13	11	11	1	17	4	1	1	61	2	6.97	0.47	0.87	13.1	27.9	2.90	.387	9.58	245	8.61	229	11.32	-5.8
12	José Marte J. Marte	14.73	11.0	2022	LAA	11	0	0		0	7.36	15	0	0	0	8	9	9	2	18	0	4	0	58	1	12.27	0.83	1.64	25.9	31.0	2.36	.261	7.36	186	7.65	190	6.55	-4.3
13	Mark Wohlers M. Wohlers	14.61	20.1	1998	ATL	27	0	1	.000	0	10.18	22	0	0	8	18	23	23	2	33	1	17	0	113	7	9.74	0.67	0.89	19.5	29.2	2.51	.291	10.18	243	7.26	171	7.97	-6.9
14	Bill Breckinridge B. Breckinridge	14.40	10.0	1929	PHA	3	0	0		1	8.10	2	0	0	0	10	9	10	0	16	0	2		55	2	1.80	0.13	0.00	3.6	29.1	2.60	.270	9.00	191	7.56	172	9.00	-3.5
15	Stu Flythe S. Flythe	13.96	39.1	1936	PHA	17	0	0		3	13.04	14	0	0	0	49	57	63	4	61	3	9		229	16	3.20	0.23	0.92	6.1	26.6	2.80	.306	14.42	256	8.76	180	11.21	-16.8
16	Dave Gray D. Gray	13.85	13.0	1964	BOS	9	0	0		1	9.00	17	0	0	0	18	13	20	3	20	0	6	0	77	4	11.77	0.85	2.08	22.1	26.0	2.92	.405	13.85	234	7.60	190	12.46	-4.9
17	George Curry G. Curry	13.79	15.2	1911	SLA	3	0	3	.000	3	7.47	2	0	0	0	19	13	15	0	24	0	0		80	1	1.15	0.08	0.00	2.5	30.0	2.74	.352	8.62	228	7.11	227	10.91	-7.1
18	Brad Pennington B. Pennington	13.72	20.1	1996	TOT	22	0	2	.000	0	6.20	20	0	0	0	11	14	15	2	31	0	8	1	102	2	8.85	0.65	0.89	19.6	30.4	2.07	.184	6.64	123	7.05	144	4.87	-4.8
19	Luke Walker L. Walker	13.50	10.0	1966	PIT	10	0	1	.000	1	4.50	7	0	0	0	8	5	9	0	15	1	2	2	55	2	6.30	0.47	0.00	12.7	27.3	2.30	.250	8.10	125	5.95	171	7.20	-2.7
20	Mickey McDermott M. McDermott	13.50	23.1	1948	BSA	7	0	0		0	6.17	17	0	0	0	16	16	18	2	35	1	5		114	3	6.56	0.49	0.77	14.9	30.7	2.19	.237	6.94	134	6.95	155	6.17	-5.9
21	Jennings Poindexter J. Poindexter	13.50	10.2	1936	BSA	3	0	2	.000	3	6.75	2	0	0	0	13	8	11	0	16	0	0		60	3	1.69	0.13	0.00	3.3	26.7	2.72	.310	9.28	130	7.39	149	10.97	-2.8
22	Bill Grevell B. Grevell	13.50	12.0	1919	PHA	5	0	0		2	14.25	3	0	0	0	15	19	20	0	18	1	2		68	1	2.25	0.17	0.00	4.4	26.5	2.75	.326	15.00	434	6.74	208	11.25	-4.6
23	Dontrelle Willis D. Willis	13.13	24.0	2008	DET	8	0	2	.000	7	9.38	18	0	0	0	18	25	25	4	35	1	0	1	122	5	6.75	0.51	1.50	14.8	28.7	2.21	.219	9.38	214	8.29	190	6.75	-10.4
24	Joe Cowley J. Cowley	13.11	11.2	1987	PHI	5	0	4	.000	4	15.43	5	0	0	0	21	20	26	2	17	2	0	1	73	0	3.86	0.29	1.54	6.8	23.3	3.26	.404	20.06	367	9.12	221	16.20	-6.4
25	Pete Naktenis P. Naktenis	13.02	18.2	1936	PHA	7	0	1	.000	1	12.54	18	0	0	0	24	26	26	2	27	2	3		104	2	8.68	0.67	0.96	17.3	26.0	2.73	.400	12.54	246	7.39	152	11.57	-5.2