who has the highest h/9 in a single season with at least 300 ip since 1947

Since 1947, Wilbur Wood has allowed the most H/9 with 300.0+ innings pitched in a season, with 9.54 per nine innings in 1973.

	NAME	H/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	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	PRAA
1	Wilbur Wood W. Wood	9.54	359.1	1973	CWS	49	24	20	.545	48	3.46	199	21	4	0	381	138	166	25	91	7	1	3	1,531	7	4.98	2.28	2.19	0.63	13.0	5.9	1.31	.294	4.16	89	3.17	82	27.9
2	Jim Kaat J. Kaat	9.51	303.2	1975	CWS	43	20	14	.588	41	3.11	142	12	1	0	321	105	121	20	77	9	1	0	1,279	0	4.21	2.28	1.84	0.59	11.1	6.0	1.31	.292	3.59	81	3.35	89	14.3
3	Mickey Lolich M. Lolich	9.18	308.2	1973	DET	42	16	15	.516	42	3.82	214	17	3	0	315	131	143	35	79	5	0	7	1,286	12	6.24	2.30	2.71	1.02	16.6	6.1	1.28	.294	4.17	97	3.46	88	15.5
4	Mickey Lolich M. Lolich	9.06	308.0	1974	DET	41	16	21	.432	41	4.15	202	27	3	0	310	142	155	38	78	3	0	11	1,263	10	5.90	2.28	2.59	1.11	16.0	6.2	1.26	.289	4.53	109	3.65	98	3.2
5	Bob Friend B. Friend	8.88	314.1	1956	PIT	49	17	17	.500	42	3.46	166	19	4	3	310	121	137	25	85	2	7	18	1,315	5	4.75	2.43	1.95	0.72	12.6	6.5	1.26	.275	3.92	94	3.18	83	22.8
6	Robin Roberts R. Roberts	8.62	305.0	1955	PHI	41	23	14	.622	38	3.28	160	26	1	3	292	111	137	41	53	2	3	3	1,256	3	4.72	1.56	3.02	1.21	12.7	4.2	1.13	.251	4.04	83	3.61	90	13.8
7	Phil Niekro P. Niekro	8.58	330.1	1977	ATL	44	16	20	.444	43	4.03	262	20	2	0	315	148	166	26	164	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	18.1
8	Wilbur Wood W. Wood	8.57	320.1	1974	CWS	42	20	19	.513	42	3.60	169	22	1	0	305	128	143	27	80	9	0	8	1,316	5	4.75	2.25	2.11	0.76	12.8	6.1	1.20	.270	4.02	97	3.44	96	5
9	Jim Colborn J. Colborn	8.50	314.1	1973	MIL	43	20	12	.625	36	3.18	135	22	4	1	297	111	133	21	87	3	2	5	1,287	6	3.87	2.49	1.55	0.60	10.5	6.8	1.22	.265	3.81	83	3.43	90	13
10	Johnny Sain J. Sain	8.49	314.2	1948	BSN	42	24	15	.615	39	2.60	137	28	4	1	297	91	105	19	83	5	3		1,313	2	3.92	2.37	1.65	0.54	10.4	6.3	1.21	.260	3.00	69	3.41	89	15
11	Vern Bickford V. Bickford	8.46	311.2	1950	BSN	40	19	14	.576	39	3.47	126	27	2	0	293	120	135	25	122	6	1		1,325	5	3.64	3.52	1.03	0.72	9.5	9.2	1.33	.256	3.90	88	4.05	100	-0.8
12	Dave Goltz D. Goltz	8.44	303.0	1977	MIN	39	20	11	.645	39	3.36	186	19	2	0	284	113	129	23	91	2	0	4	1,253	9	5.52	2.70	2.04	0.68	14.8	7.3	1.24	.274	3.83	81	3.41	83	23.2
13	Warren Spahn W. Spahn	8.42	302.1	1949	BSN	38	21	14	.600	38	3.07	151	25	4	0	283	103	125	27	86	3	0		1,258	4	4.50	2.56	1.76	0.80	12.0	6.8	1.22	.258	3.72	80	3.56	93	8.4
14	Fergie Jenkins F. Jenkins	8.42	325.0	1971	CHC	39	24	13	.649	39	2.77	263	30	3	0	304	100	114	29	37	5	0	6	1,299	3	7.28	1.02	7.11	0.80	20.2	2.8	1.05	.285	3.16	73	2.38	64	45.3
15	Robin Roberts R. Roberts	8.41	346.2	1953	PHN	44	23	16	.590	41	2.75	198	33	5	2	324	106	119	30	61	2	2		1,412	3	5.14	1.58	3.25	0.78	14.0	4.3	1.11	.262	3.09	66	3.12	75	41
16	Robin Roberts R. Roberts	8.34	304.1	1950	PHN	40	20	11	.645	39	3.02	146	21	5	1	282	102	112	29	77	2	1		1,228	2	4.32	2.28	1.90	0.86	11.9	6.3	1.18	.260	3.31	75	3.64	88	16.8
17	Gaylord Perry G. Perry	8.24	344.0	1973	CLE	41	19	19	.500	41	3.38	238	29	7	0	315	129	143	34	115	5	0	9	1,410	17	6.23	3.01	2.07	0.89	16.9	8.2	1.25	.276	3.74	87	3.51	90	14.2
18	Claude Osteen C. Osteen	8.21	321.0	1969	LAD	41	20	15	.571	41	2.66	183	16	7	0	293	95	103	17	74	6	0	8	1,291	8	5.13	2.07	2.47	0.48	14.2	5.7	1.14	.273	2.89	80	2.80	87	14.2
19	Fergie Jenkins F. Jenkins	8.21	311.1	1969	CHC	43	21	15	.583	42	3.21	273	23	7	1	284	111	122	27	71	8	1	15	1,275	7	7.89	2.05	3.85	0.78	21.4	5.6	1.14	.287	3.53	82	2.64	70	36.8
20	Bert Blyleven B. Blyleven	8.20	325.0	1973	MIN	40	20	17	.541	40	2.52	258	25	9	0	296	91	109	16	67	9	0	4	1,321	7	7.14	1.86	3.85	0.44	19.5	5.1	1.12	.288	3.02	63	2.31	58	57.6
21	Don Drysdale D. Drysdale	8.19	315.1	1963	LAD	42	19	17	.528	42	2.63	251	17	3	0	287	92	114	25	57	10	0	13	1,266	4	7.16	1.63	4.40	0.71	19.8	4.5	1.09	.284	3.25	87	2.56	85	15.7
22	Phil Niekro P. Niekro	8.18	342.0	1979	ATL	44	21	20	.512	44	3.39	208	23	1	0	311	129	160	41	113	11	0	8	1,436	18	5.47	2.97	1.84	1.08	14.5	7.9	1.24	.254	4.21	84	4.15	101	0.1
23	Gaylord Perry G. Perry	8.16	305.2	1975	TOT	37	18	17	.514	37	3.24	233	25	5	0	277	110	127	28	70	4	0	6	1,248	5	6.86	2.06	3.33	0.82	18.7	5.6	1.14	.273	3.74	86	2.97	78	28.4
24	Juan Marichal J. Marichal	8.15	325.2	1968	SFG	38	26	9	.743	38	2.43	218	30	5	0	295	88	106	21	46	6	0	9	1,307	8	6.02	1.27	4.74	0.58	16.7	3.5	1.05	.270	2.93	83	2.36	85	14.6
25	Luis Tiant L. Tiant	8.12	311.1	1974	BOS	38	22	13	.629	38	2.92	176	25	7	0	281	101	106	21	82	4	0	3	1,266	1	5.09	2.37	2.15	0.61	13.9	6.5	1.17	.264	3.06	75	3.14	83	21.4