most starts with 6+ innings pitched and 3 or fewer earned runs in a single season

Wilbur Wood has the most starts with 6.0+ innings pitched and 3 or fewer earned runs in a season, with 37 starts in 1971.

Interpreted as:

most starts by a player with 6+ innings pitched and 3 or fewer earned runs in a single season

	NAME	GS	IP	ER	SEASON	TM	G	W	L	W%	ERA	SO	CG	SHO	SV	H	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Wilbur Wood W. Wood	37	307.1	50	1971	CWS	37	21	10	.677	1.46	193	22	7	0	233	70	17	56	7	0	1	1,192	4	5.65	1.64	3.45	0.50	16.2	4.7	0.94	.235	2.05	6.82
2	Sandy Koufax S. Koufax	36	307.1	46	1966	LAD	36	27	6	.818	1.35	308	27	5	0	215	53	18	65	0	0	3	1,187	6	9.02	1.90	4.74	0.53	25.9	5.5	0.91	.247	1.55	6.30
3	Bob Feller B. Feller	36	318.2	45	1946	CLE	36	26	9	.743	1.27	294	33	10	0	211	56	6	126	3	0		1,263	2	8.30	3.56	2.33	0.17	23.3	10.0	1.06	.246	1.58	5.96
4	Denny McLain D. McLain	35	299.0	50	1968	DET	35	28	3	.903	1.51	247	26	6	0	203	56	21	51	4	0	0	1,129	2	7.43	1.54	4.84	0.63	21.9	4.5	0.85	.226	1.69	6.11
5	Sandy Koufax S. Koufax	35	305.0	53	1965	LAD	35	26	6	.813	1.56	344	26	8	0	178	61	18	59	5	0	3	1,151	7	10.15	1.74	5.83	0.53	29.9	5.1	0.78	.221	1.80	5.25
6	Gaylord Perry G. Perry	34	304.1	48	1972	CLE	34	24	10	.706	1.42	205	27	5	0	210	54	10	72	11	0	13	1,179	10	6.06	2.13	2.85	0.30	17.4	6.1	0.93	.227	1.60	6.21
7	Dwight Gooden D. Gooden	33	269.1	40	1985	NYM	33	24	4	.857	1.34	261	16	8	0	188	44	11	64	2	0	4	1,029	5	8.72	2.14	4.08	0.37	25.4	6.2	0.94	.256	1.47	6.28
8	Wilbur Wood W. Wood	33	273.2	37	1972	CWS	33	21	8	.724	1.22	142	18	8	0	199	48	11	44	4	0	2	1,037	3	4.67	1.45	3.23	0.36	13.7	4.2	0.89	.225	1.58	6.54
9	Mike Scott M. Scott	32	247.0	45	1986	HOU	32	17	7	.708	1.64	275	7	5	0	145	49	14	60	1	0	5	932	3	10.02	2.19	4.58	0.51	29.5	6.4	0.83	.225	1.79	5.28
10	Steve Carlton S. Carlton	32	259.2	53	1980	PHI	32	22	7	.759	1.84	246	13	3	0	198	61	10	78	1	0	10	1,040	14	8.53	2.70	3.15	0.35	23.7	7.5	1.06	.267	2.11	6.86
11	Mickey Lolich M. Lolich	32	266.2	47	1972	DET	32	19	9	.679	1.59	208	22	4	0	207	55	17	63	7	0	3	1,050	4	7.02	2.13	3.30	0.57	19.8	6.0	1.01	.252	1.86	6.99
12	Gaylord Perry G. Perry	32	283.1	57	1969	SFG	32	19	8	.704	1.81	197	25	3	0	229	80	19	72	8	0	9	1,138	6	6.26	2.29	2.74	0.60	17.3	6.3	1.06	.249	2.54	7.27
13	Bob Gibson B. Gibson	32	284.2	30	1968	STL	32	21	9	.700	0.95	252	27	13	0	175	40	8	57	6	0	5	1,073	4	7.97	1.80	4.42	0.25	23.5	5.3	0.81	.223	1.26	5.53
14	Jim Bunning J. Bunning	32	265.0	43	1967	PHI	32	15	11	.577	1.46	227	15	6	0	185	57	10	59	11	0	16	1,034	4	7.71	2.00	3.85	0.34	22.0	5.7	0.92	.241	1.94	6.28
15	Claude Osteen C. Osteen	32	253.1	53	1965	LAD	32	15	10	.600	1.88	143	9	1	0	194	59	14	67	3	0	9	1,003	2	5.08	2.38	2.13	0.50	14.3	6.7	1.03	.232	2.10	6.89
16	Don Drysdale D. Drysdale	32	270.2	39	1964	LAD	32	17	10	.630	1.30	205	20	5	0	181	51	8	55	7	0	7	1,042	9	6.82	1.83	3.73	0.27	19.7	5.3	0.87	.226	1.70	6.02
17	Phil Niekro P. Niekro	31	251.2	44	1974	ATL	31	19	8	.704	1.57	161	17	6	0	191	55	11	64	4	0	2	989	4	5.76	2.29	2.52	0.39	16.3	6.5	1.01	.240	1.97	6.83
18	Catfish Hunter C. Hunter	31	259.0	47	1974	OAK	31	24	6	.800	1.63	116	21	6	0	194	53	16	32	2	0	1	982	0	4.03	1.11	3.63	0.56	11.8	3.3	0.87	.218	1.84	6.74
19	Tom Seaver T. Seaver	31	265.0	45	1973	NYM	31	18	7	.720	1.53	226	18	3	0	185	51	17	54	3	0	3	1,028	4	7.68	1.83	4.19	0.58	22.0	5.3	0.90	.231	1.73	6.28
20	Bert Blyleven B. Blyleven	31	240.0	54	1972	MIN	31	15	12	.556	2.03	196	10	3	0	191	59	13	53	7	0	5	945	6	7.35	1.99	3.70	0.49	20.7	5.6	1.02	.263	2.21	7.16
21	Steve Carlton S. Carlton	31	274.0	33	1972	PHI	31	25	5	.833	1.08	239	25	8	0	184	40	9	56	1	0	5	1,036	6	7.85	1.84	4.27	0.30	23.1	5.4	0.88	.239	1.31	6.04
22	Tom Seaver T. Seaver	31	265.0	40	1971	NYM	31	19	7	.731	1.36	269	20	4	0	174	44	15	53	4	0	2	998	3	9.14	1.80	5.08	0.51	27.0	5.3	0.86	.242	1.49	5.91
23	Mickey Lolich M. Lolich	31	281.1	53	1971	DET	31	24	6	.800	1.70	239	27	4	0	219	61	16	66	3	0	1	1,113	7	7.65	2.11	3.62	0.51	21.5	5.9	1.01	.257	1.95	7.01
24	Claude Osteen C. Osteen	31	260.0	50	1969	LAD	31	20	7	.741	1.73	155	16	7	0	201	57	10	54	5	0	5	1,003	8	5.37	1.87	2.87	0.35	15.5	5.4	0.98	.245	1.97	6.96
25	Bill Hands B. Hands	31	251.2	45	1969	CHC	31	19	7	.731	1.61	155	18	3	0	197	61	13	54	4	0	5	986	3	5.54	1.93	2.87	0.46	15.7	5.5	1.00	.242	2.18	7.05