best k/9 with a minimum of 1000 innings pitched as a pitcher in the 1970s

Between the 1970 and 1979 seasons, Nolan Ryan had the best K/9 when pitching at least 1000 innings, with 9.78 per nine innings.

	NAME	K/9	IP	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Nolan Ryan N. Ryan	9.78	2465.0	348	155	146	.515	333	3.14	2,678	164	42	2	1,731	860	984	133	1,515	75	8	34	10,453	116	5.53	1.77	0.49	25.6	14.5	1.32	.264	3.59	89	3.05	85	6.32	150.5
2	J.R. Richard	8.29	1492.1	221	97	67	.591	204	3.24	1,374	72	15	0	1,162	538	594	71	730	17	3	14	6,236	90	4.40	1.88	0.43	22.0	11.7	1.27	.270	3.58	95	2.92	84	7.01	94.8
3	Tom Seaver T. Seaver	7.82	2652.1	348	178	101	.638	345	2.61	2,304	147	40	0	2,105	768	843	190	741	28	2	65	10,607	64	2.51	3.11	0.64	21.7	7.0	1.07	.261	2.86	73	2.64	74	7.14	272
4	Rollie Fingers R. Fingers	7.18	1219.0	640	84	85	.497	29	2.89	973	3	1	209	1,038	391	438	84	353	32	480	74	4,953	25	2.61	2.76	0.62	19.6	7.1	1.14	.272	3.23	84	2.83	79	7.66	100.9
5	Frank Tanana F. Tanana	7.14	1411.1	193	91	66	.580	187	2.93	1,120	85	24	0	1,238	459	507	128	377	47	3	24	5,775	38	2.40	2.97	0.82	19.4	6.5	1.14	.271	3.23	82	3.11	85	7.89	88.7
6	Bert Blyleven B. Blyleven	7.14	2624.2	353	148	128	.536	350	2.88	2,082	145	39	0	2,335	841	949	186	711	70	2	43	10,722	61	2.44	2.93	0.64	19.4	6.6	1.16	.280	3.25	78	2.80	76	8.01	260.7
7	Steve Carlton S. Carlton	6.87	2747.0	368	178	126	.586	366	3.18	2,097	165	32	0	2,413	971	1,103	238	960	31	0	87	11,361	81	3.15	2.18	0.78	18.5	8.4	1.23	.271	3.61	85	3.26	89	7.91	125.5
8	Dennis Eckersley D. Eckersley	6.70	1148.1	171	77	50	.606	155	3.12	855	60	13	3	1,008	398	431	119	352	32	8	33	4,760	17	2.76	2.43	0.93	18.0	7.4	1.18	.261	3.38	79	3.51	88	7.90	61.2
9	Wayne Twitchell W. Twitchell	6.68	1063.0	282	48	65	.425	133	3.98	789	15	6	2	983	470	541	92	537	40	48	43	4,628	58	4.55	1.47	0.78	17.0	11.6	1.43	.281	4.58	108	3.85	105	8.32	-20.8
10	John Montefusco J. Montefusco	6.60	1069.1	163	55	54	.505	158	3.38	784	29	11	0	1,023	401	453	75	344	21	2	39	4,519	21	2.90	2.28	0.63	17.3	7.6	1.28	.288	3.81	92	3.10	88	8.61	48.7
11	Bob Gibson B. Gibson	6.60	1361.2	179	84	64	.568	171	3.20	998	89	14	2	1,218	484	538	87	475	26	4	57	5,688	39	3.14	2.10	0.58	17.5	8.4	1.24	.276	3.56	87	2.99	85	8.05	83
12	Clay Kirby C. Kirby	6.40	1332.1	226	68	84	.447	204	3.84	948	40	8	0	1,226	569	647	138	613	24	8	44	5,751	76	4.14	1.55	0.93	16.5	10.7	1.38	.270	4.37	109	3.88	112	8.28	-68.1
13	Mickey Lolich M. Lolich	6.38	2110.0	319	115	117	.496	277	3.43	1,496	133	20	1	2,048	803	897	202	581	32	15	40	8,765	71	2.48	2.57	0.86	17.1	6.6	1.25	.286	3.83	94	3.23	87	8.74	107.8
14	Andy Messersmith A. Messersmith	6.35	1899.0	276	110	86	.561	257	2.93	1,340	86	24	9	1,506	619	710	154	696	34	16	33	7,791	51	3.30	1.93	0.73	17.2	8.9	1.16	.243	3.36	84	3.36	94	7.14	43.9
15	Jerry Koosman J. Koosman	6.26	2281.1	337	124	127	.494	313	3.30	1,587	85	15	5	2,119	837	947	173	747	40	13	74	9,498	53	2.95	2.12	0.68	16.7	7.9	1.26	.280	3.74	92	3.22	89	8.36	97.6
16	Skip Lockwood S. Lockwood	6.23	1167.1	390	54	95	.362	102	3.48	808	16	5	66	1,045	452	499	91	467	33	200	59	4,909	41	3.60	1.73	0.70	16.5	9.5	1.30	.272	3.85	100	3.47	96	8.06	17.2
17	Don Sutton D. Sutton	6.22	2557.1	352	166	110	.601	349	3.07	1,767	117	39	2	2,174	871	975	214	660	45	3	45	10,403	63	2.32	2.68	0.75	17.0	6.3	1.11	.254	3.43	87	3.11	88	7.65	121.3
18	Joe Coleman J. Coleman	6.13	1937.2	380	107	97	.525	246	3.76	1,319	64	12	6	1,813	810	919	183	795	63	68	51	8,277	89	3.69	1.66	0.85	15.9	9.6	1.35	.275	4.27	102	3.74	100	8.42	-0.8
19	Fergie Jenkins F. Jenkins	6.12	2706.2	360	178	130	.578	354	3.38	1,841	184	33	0	2,507	1,015	1,128	301	518	51	5	55	11,009	34	1.72	3.55	1.00	16.7	4.7	1.12	.266	3.75	86	3.29	86	8.34	158.8
20	Tom Bradley T. Bradley	6.11	1015.2	180	55	60	.478	151	3.68	689	27	10	2	990	415	475	85	311	10	6	33	4,310	27	2.76	2.22	0.75	16.0	7.2	1.28	.281	4.21	103	3.17	88	8.77	45.6
21	Ed Halicki E. Halicki	6.08	1002.2	171	52	65	.444	149	3.54	677	36	13	1	939	394	472	72	313	24	6	44	4,254	14	2.81	2.16	0.65	15.9	7.4	1.25	.274	4.24	96	3.23	91	8.43	34.2
22	Jon Matlack J. Matlack	6.06	1803.0	251	102	98	.510	245	2.97	1,215	85	28	1	1,662	595	693	115	485	20	4	62	7,405	51	2.42	2.51	0.57	16.4	6.5	1.19	.278	3.46	84	2.89	81	8.30	133.8
23	Fred Norman F. Norman	6.06	1794.2	340	100	94	.515	253	3.54	1,208	54	15	4	1,642	705	777	170	744	19	28	69	7,636	80	3.73	1.62	0.85	15.8	9.7	1.33	.268	3.90	99	3.74	105	8.23	-39.1
24	Vida Blue V. Blue	6.00	2398.2	330	155	109	.587	327	3.07	1,600	124	32	1	2,080	819	927	161	780	19	1	42	9,827	69	2.93	2.05	0.60	16.3	7.9	1.19	.264	3.48	88	3.12	87	7.80	125.1
25	Don Gullett D. Gullett	5.96	1390.0	266	109	50	.686	186	3.11	921	44	14	11	1,205	481	528	115	501	12	35	42	5,763	36	3.24	1.84	0.74	16.0	8.7	1.23	.259	3.42	88	3.42	97	7.80	17.9