Mike Marshall had 6.18 K/9 with 50.0+ innings pitched in 1974.

	NAME	K/9	IP	SEASON	TM	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	H/9
1	Mike Marshall M. Marshall	6.18	208.1	1974	LAD	106	15	12	.556	0	2.42	143	0	0	21	191	56	66	9	56	1	83	1	857	5	2.42	2.55	0.39	16.7	6.5	1.19	.281	2.85	8.25
2	Mike Marshall M. Marshall	6.23	179.0	1973	MON	92	14	11	.560	0	2.66	124	0	0	31	163	53	62	10	75	4	73	11	747	8	3.77	1.65	0.50	16.6	10.0	1.33	.287	3.12	8.20
3	Bob Stanley B. Stanley	4.44	168.1	1982	BOS	48	12	7	.632	0	3.10	83	0	0	14	161	58	60	11	50	4	33	6	694	2	2.67	1.66	0.59	12.0	7.2	1.25	.275	3.21	8.61
4	Bill Campbell B. Campbell	6.17	167.2	1976	MIN	78	17	5	.773	0	3.01	115	0	0	20	145	56	63	9	62	5	68	11	703	7	3.33	1.85	0.48	16.4	8.8	1.23	.266	3.38	7.78
5	Eddie Fisher E. Fisher	4.90	165.1	1965	CWS	82	15	7	.682	0	2.40	90	0	0	24	118	44	51	13	43	2	60	8	646	10	2.34	2.09	0.71	13.9	6.7	0.97	.211	2.78	6.42
6	Andy Karl A. Karl	2.80	163.2	1945	PHN	65	8	6	.571	0	3.02	51	0	0	15	161	55	72	6	48	3	41		695	1	2.64	1.06	0.33	7.3	6.9	1.28	.264	3.96	8.85
7	Hoyt Wilhelm H. Wilhelm	6.04	159.1	1952	NYG	71	15	3	.833	0	2.43	107	0	0	11	127	43	60	12	56	5	32		646	3	3.16	1.91	0.68	16.6	8.7	1.15	.247	3.39	7.17
8	Mark Eichhorn M. Eichhorn	9.52	157.0	1986	TOR	69	14	6	.700	0	1.72	166	0	0	10	105	30	32	8	45	7	38	14	612	2	2.58	3.69	0.46	27.1	7.4	0.96	.251	1.83	6.02
9	Dick Radatz D. Radatz	10.49	157.0	1964	BOS	79	16	9	.640	0	2.29	183	0	0	29	103	40	44	13	58	7	67	9	634	1	3.32	3.16	0.75	28.9	9.1	1.03	.241	2.52	5.90
10	Jim Konstanty J. Konstanty	3.38	152.0	1950	PHN	74	16	7	.696	0	2.55	57	0	0	22	108	43	50	11	51	0	62		603	2	3.02	1.12	0.65	9.5	8.5	1.05	.200	2.96	6.39
11	John Hiller J. Hiller	8.04	150.0	1974	DET	59	17	14	.548	0	2.64	134	0	0	13	127	44	51	10	62	3	52	19	633	7	3.72	2.16	0.60	21.2	9.8	1.26	.276	3.06	7.62
12	Tom Johnson T. Johnson	5.34	146.2	1977	MIN	71	16	7	.696	0	3.13	87	0	0	15	152	51	57	11	47	5	54	8	630	10	2.88	1.85	0.68	13.8	7.5	1.36	.294	3.50	9.33
13	Garland Braxton G. Braxton	5.42	146.0	1927	WSH	56	10	7	.588	0	2.47	88	0	0	10	120	40	49	4	33	1	31		586	3	2.03	2.67	0.25	15.0	5.6	1.05	.252	3.02	7.40
14	Bob Stanley B. Stanley	4.03	145.1	1983	BOS	64	8	10	.444	0	2.85	65	0	0	33	145	46	56	7	38	3	53	12	602	4	2.35	1.71	0.43	10.8	6.3	1.26	.282	3.47	8.98
15	Wilbur Wood W. Wood	4.41	145.0	1968	CWS	86	12	11	.522	0	1.92	71	0	0	16	113	31	35	8	31	3	46	11	567	3	1.92	2.29	0.50	12.5	5.5	0.99	.231	2.17	7.01
16	Hoyt Wilhelm H. Wilhelm	6.64	145.0	1965	CWS	66	7	7	.500	0	1.80	107	0	0	21	88	29	34	11	32	2	45	7	549	10	1.99	3.34	0.68	19.5	5.8	0.83	.194	2.11	5.46
17	Hoyt Wilhelm H. Wilhelm	4.59	145.0	1953	NYG	68	7	8	.467	0	3.10	74	0	0	15	127	50	61	13	77	4	39		632	10	4.78	0.96	0.81	11.7	12.2	1.41	.246	3.79	7.88
18	Wayne Granger W. Granger	4.23	144.2	1969	CIN	90	9	6	.600	0	2.80	68	0	0	27	143	45	64	10	40	7	55	14	611	5	2.49	1.70	0.62	11.1	6.5	1.26	.274	3.98	8.90
19	Steve Foucault S. Foucault	6.61	144.1	1974	TEX	69	8	9	.471	0	2.24	106	0	0	12	123	36	51	8	40	5	53	5	584	3	2.49	2.65	0.50	18.2	6.8	1.13	.271	3.18	7.67
20	Allen Russell A. Russell	3.30	144.1	1923	WSH	47	9	3	.750	0	2.62	53	0	0	9	133	42	61	6	61	2	29		610	2	3.80	0.87	0.37	8.7	10.0	1.34	.260	3.80	8.29
21	Jim Kern J. Kern	8.56	143.0	1979	TEX	71	13	5	.722	0	1.57	136	0	0	29	99	25	35	5	62	2	57	6	578	5	3.90	2.19	0.31	23.5	10.7	1.13	.252	2.20	6.23
22	Charlie Hough C. Hough	5.11	142.2	1976	LAD	77	12	8	.600	0	2.21	81	0	0	18	102	35	43	6	77	8	55	3	600	9	4.86	1.05	0.38	13.5	12.8	1.25	.224	2.71	6.43
23	Rich Gossage R. Gossage	8.26	141.2	1975	CWS	62	9	8	.529	0	1.84	130	0	0	26	99	29	32	3	70	5	49	15	583	3	4.45	1.86	0.19	22.3	12.0	1.19	.256	2.03	6.29
24	Mike Marshall M. Marshall	5.05	140.2	1979	MIN	89	10	14	.417	0	2.62	79	0	0	32	131	41	46	7	47	4	84	2	578	8	3.01	1.68	0.45	13.7	8.1	1.27	.281	2.94	8.38
25	Willie Hernandez W. Hernandez	7.18	140.1	1984	DET	80	9	3	.750	0	1.92	112	0	0	32	96	30	30	6	36	4	68	8	548	2	2.31	3.11	0.38	20.4	6.6	0.94	.231	1.92	6.16