pitcher with most games pitching 5 innings and allowing two earned runs or less in a season by a pitcher

Sandy Koufax has the most games pitched with 5.0+ innings pitched and 2 or fewer earned runs in a season, with 32 games in 1966.

Interpreted as:

pitcher with most games pitching 5 or more innings and allowing two earned runs or less in a season by a pitcher

	NAME	G	IP	ER	SEASON	TM	W	L	W%	GS	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	Sandy Koufax S. Koufax	32	277.1	34	1966	LAD	26	3	.897	32	1.10	286	26	5	0	188	40	12	60	0	0	3	1,065	6	9.28	1.95	4.77	0.39	26.9	5.6	0.89	.249	1.30	6.10
2	Wilbur Wood W. Wood	30	253.1	28	1972	CWS	21	6	.778	30	0.99	136	18	8	0	175	37	11	37	4	0	2	948	3	4.83	1.31	3.68	0.39	14.3	3.9	0.84	.216	1.31	6.22
3	Bob Feller B. Feller	30	265.2	27	1946	CLE	23	6	.793	30	0.91	242	27	10	0	162	35	5	99	3	0		1,031	2	8.20	3.35	2.44	0.17	23.5	9.6	0.98	.230	1.19	5.49
4	Wilbur Wood W. Wood	29	243.2	26	1971	CWS	19	5	.792	29	0.96	151	17	7	0	171	42	11	44	4	0	0	930	3	5.58	1.63	3.43	0.41	16.2	4.7	0.88	.222	1.55	6.32
5	Sandy Koufax S. Koufax	29	253.2	20	1963	LAD	23	1	.958	29	0.71	233	19	11	0	137	22	5	43	3	0	4	942	4	8.27	1.53	5.42	0.18	24.7	4.6	0.71	.201	0.78	4.86
6	Felix Hernandez F. Hernandez	28	199.2	34	2014	SEA	14	4	.778	28	1.53	224	0	0	0	125	41	10	35	4	0	0	751	17	10.10	1.58	6.40	0.45	29.8	4.7	0.80	.241	1.85	5.63
7	Andy Messersmith A. Messersmith	28	229.0	26	1975	LAD	16	7	.696	28	1.02	150	15	7	0	157	33	7	63	3	0	0	884	6	5.90	2.48	2.38	0.28	17.0	7.1	0.96	.227	1.30	6.17
8	Phil Niekro P. Niekro	28	227.1	33	1974	ATL	19	4	.826	28	1.31	137	16	6	0	163	40	8	63	4	0	2	886	4	5.42	2.49	2.17	0.32	15.5	7.1	0.99	.230	1.58	6.45
9	Tom Seaver T. Seaver	28	240.2	36	1973	NYM	17	6	.739	28	1.35	207	16	3	0	168	40	14	46	3	0	3	930	4	7.74	1.72	4.50	0.52	22.3	4.9	0.89	.233	1.50	6.28
10	Gaylord Perry G. Perry	28	256.0	30	1972	CLE	22	6	.786	28	1.05	183	24	5	0	162	36	6	65	8	0	12	987	8	6.43	2.29	2.82	0.21	18.5	6.6	0.89	.215	1.27	5.70
11	Tom Seaver T. Seaver	28	237.2	30	1971	NYM	20	5	.800	28	1.14	249	20	4	0	152	34	10	44	2	0	1	887	3	9.43	1.67	5.66	0.38	28.1	5.0	0.82	.244	1.29	5.76
12	Sam McDowell S. McDowell	28	222.1	28	1968	CLE	14	9	.609	28	1.13	236	11	3	0	134	44	10	81	8	0	7	882	6	9.55	3.28	2.91	0.40	26.8	9.2	0.97	.227	1.78	5.42
13	Denny McLain D. McLain	28	237.2	28	1968	DET	22	4	.846	28	1.06	198	21	6	0	155	40	13	45	4	0	1	899	2	7.50	1.70	4.40	0.49	22.0	5.0	0.84	.222	1.51	5.87
14	Mort Cooper M. Cooper	28	245.0	27	1942	SLN	22	2	.917	28	0.99	128	22	10	0	160	37	7	48	4	0		931	4	4.70	1.76	2.67	0.26	13.7	5.2	0.85	.206	1.36	5.88
15	Zack Wheeler Z. Wheeler	27	174.2	29	2024	PHI	16	3	.842	27	1.49	197	0	0	0	106	33	10	40	6	0	0	665	4	10.15	2.06	4.93	0.52	29.6	6.0	0.84	.233	1.70	5.46
16	Johnny Cueto J. Cueto	27	203.1	32	2014	CIN	19	3	.864	27	1.42	196	4	2	0	126	37	18	48	7	0	2	773	0	8.68	2.12	4.08	0.80	25.4	6.2	0.86	.214	1.64	5.58
17	Roger Clemens R. Clemens	27	184.1	23	2005	HOU	12	4	.750	27	1.12	163	1	0	0	114	28	6	51	2	0	3	710	2	7.96	2.49	3.20	0.29	23.0	7.2	0.90	.221	1.37	5.57
18	Greg Maddux G. Maddux	27	211.2	37	1993	ATL	17	5	.773	27	1.57	155	8	1	0	158	49	4	37	4	0	5	821	4	6.59	1.57	4.19	0.17	18.9	4.5	0.92	.248	2.08	6.72
19	Mike Scott M. Scott	27	209.1	30	1986	HOU	16	4	.800	27	1.29	232	6	5	0	121	34	9	51	1	0	4	786	3	9.97	2.19	4.55	0.39	29.5	6.5	0.82	.227	1.46	5.20
20	Dwight Gooden D. Gooden	27	224.0	22	1985	NYM	21	3	.875	27	0.88	219	14	8	0	147	25	6	53	1	0	4	844	5	8.80	2.13	4.13	0.24	25.9	6.3	0.89	.250	1.00	5.91
21	Ron Guidry R. Guidry	27	220.0	22	1978	NYY	22	1	.957	27	0.90	205	15	9	0	131	28	6	59	1	0	1	833	4	8.39	2.41	3.47	0.25	24.6	7.1	0.86	.222	1.15	5.36
22	Steve Carlton S. Carlton	27	242.0	21	1972	PHI	23	3	.885	27	0.78	211	23	8	0	156	28	5	47	1	0	5	907	5	7.85	1.75	4.49	0.19	23.3	5.2	0.84	.235	1.04	5.80
23	Bob Veale B. Veale	27	209.2	35	1968	PIT	13	7	.650	27	1.50	147	12	4	0	153	42	8	81	1	0	5	841	6	6.31	3.48	1.81	0.34	17.5	9.6	1.12	.240	1.80	6.57
24	Bob Gibson B. Gibson	27	242.2	15	1968	STL	20	6	.769	27	0.56	211	23	13	0	143	20	2	47	4	0	5	902	4	7.83	1.74	4.49	0.07	23.4	5.2	0.78	.221	0.74	5.30
25	Jim Bunning J. Bunning	27	227.0	29	1966	PHI	16	6	.727	27	1.15	184	14	5	0	163	32	8	34	11	0	6	871	4	7.30	1.35	5.41	0.32	21.1	3.9	0.87	.244	1.27	6.46