players with the best era as a pitcher in a season with the baltimore orioles since 1920 with a minimum of 1 inning pitched per team game

Since 1920, Dave McNally has the best ERA for the Orioles when he has had 1 or more (IP/TM GMS) in a season, with an ERA of 1.95 in 1968.

	NAME	ERA	IP	TM GMS	IP/TM GMS	SEASON	TM	G	W	L	W%	GS	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-	H/9	PRAA
1	Dave McNally D. McNally	1.95	273.0	162	1.69	1968	BAL	35	22	10	.688	35	202	18	5	0	175	59	67	24	55	10	0	1	1,038	5	6.66	1.81	3.67	0.79	19.5	5.3	0.84	.202	2.21	67	2.76	90	5.77	9.5
2	Jim Palmer J. Palmer	2.07	274.1	154	1.78	1972	BAL	36	21	10	.677	36	184	18	3	0	219	63	73	21	70	1	0	1	1,094	4	6.04	2.30	2.63	0.69	16.8	6.4	1.05	.242	2.39	69	2.82	90	7.18	9.3
3	Jim Palmer J. Palmer	2.09	323.0	159	2.03	1975	BAL	39	23	11	.676	38	193	25	10	1	253	75	87	20	80	2	1	4	1,268	4	5.38	2.23	2.41	0.56	15.2	6.3	1.03	.239	2.42	58	2.95	80	7.05	27
4	Hoyt Wilhelm H. Wilhelm	2.19	226.0	155	1.46	1959	BAL	32	15	11	.577	27	139	13	3	0	178	55	64	13	77	10	2	3	902	5	5.54	3.07	1.81	0.52	15.4	8.5	1.13	.249	2.55	60	3.22	86	7.09	13.3
5	Sammy Stewart S. Stewart	2.32	112.1	105	1.07	1981	BAL	29	4	8	.333	3	57	0	0	4	89	29	33	8	57	3	18	4	463	1	4.57	4.57	1.00	0.64	12.3	12.3	1.30	.240	2.64	65	4.11	112	7.13	-5.4
6	Jim Palmer J. Palmer	2.34	181.0	162	1.12	1969	BAL	26	16	4	.800	23	123	11	6	0	131	47	48	11	64	1	1	1	722	7	6.12	3.18	1.92	0.55	17.0	8.9	1.08	.229	2.39	66	3.01	82	6.51	13.8
7	Mike Cuellar M. Cuellar	2.38	290.2	162	1.79	1969	BAL	39	23	11	.676	39	182	18	5	0	213	77	94	18	79	1	0	7	1,137	3	5.64	2.45	2.30	0.56	16.0	6.9	1.00	.228	2.91	67	2.88	78	6.60	26.5
8	Jim Palmer J. Palmer	2.40	296.1	162	1.83	1973	BAL	38	22	9	.710	37	158	19	6	1	225	79	86	16	113	3	1	5	1,190	7	4.80	3.43	1.40	0.49	13.3	9.5	1.14	.232	2.61	65	3.37	91	6.83	10.3
9	Jim Palmer J. Palmer	2.46	296.0	161	1.84	1978	BAL	38	21	12	.636	38	138	19	6	0	246	81	94	19	97	1	0	1	1,197	5	4.20	2.95	1.42	0.58	11.5	8.1	1.16	.241	2.86	69	3.47	93	7.48	8.2
10	Nels Potter N. Potter	2.47	255.1	154	1.66	1945	SLA	32	15	11	.577	32	129	21	3	0	212	70	75	10	68	1	0		1,028	1	4.55	2.40	1.90	0.35	12.5	6.6	1.10	.246	2.64	71	2.85	80	7.47	20.3
11	Jack Kramer J. Kramer	2.49	257.0	154	1.67	1944	SLA	33	17	13	.567	31	124	18	1	0	233	71	94	3	75	1	2		1,058	2	4.34	2.63	1.65	0.11	11.7	7.1	1.20	.269	3.29	70	2.61	74	8.16	25.8
12	Jim Hardin J. Hardin	2.51	244.0	162	1.51	1968	BAL	35	18	13	.581	35	160	16	2	0	188	68	79	20	70	10	0	5	974	9	5.90	2.58	2.29	0.74	16.4	7.2	1.06	.235	2.91	86	3.12	101	6.93	-1.5
13	Jim Palmer J. Palmer	2.51	315.0	162	1.94	1976	BAL	40	22	13	.629	40	159	23	6	0	255	88	101	20	84	8	0	5	1,256	5	4.54	2.40	1.89	0.57	12.7	6.7	1.08	.239	2.89	77	3.32	97	7.29	3.3
14	Mike Mussina M. Mussina	2.54	241.0	162	1.49	1992	BAL	32	18	5	.783	32	130	8	4	0	212	68	70	16	48	2	0	2	957	6	4.85	1.79	2.71	0.60	13.6	5.0	1.08	.258	2.61	64	3.18	80	7.92	21.1
15	Mike Cuellar M. Cuellar	2.57	248.1	154	1.61	1972	BAL	35	18	12	.600	35	132	17	4	0	197	71	78	21	71	0	0	4	989	3	4.78	2.57	1.86	0.76	13.3	7.2	1.08	.230	2.83	86	3.29	105	7.14	-4.7
16	Milt Pappas M. Pappas	2.60	221.1	162	1.37	1965	BAL	34	13	9	.591	34	127	9	3	0	192	64	81	22	52	3	0	3	891	5	5.16	2.11	2.44	0.89	14.3	5.8	1.10	.247	3.29	77	3.41	97	7.81	2.2
17	Tom Phoebus T. Phoebus	2.62	240.2	162	1.49	1968	BAL	36	15	15	.500	36	193	9	3	0	186	70	81	10	105	4	0	5	994	10	7.22	3.93	1.84	0.37	19.4	10.6	1.21	.258	3.03	90	2.68	87	6.96	10.6
18	Pat Dobson P. Dobson	2.65	268.1	154	1.74	1972	BAL	38	16	18	.471	36	161	13	3	0	220	79	89	13	69	4	1	7	1,065	6	5.40	2.31	2.33	0.44	15.1	6.5	1.08	.253	2.99	88	2.64	84	7.38	14.7
19	Johnny Niggeling J. Niggeling	2.66	206.1	151	1.37	1942	SLA	28	15	11	.577	27	107	16	3	0	173	61	76	10	93	11	1		885	7	4.67	4.06	1.15	0.44	12.1	10.5	1.29	.245	3.32	71	3.52	97	7.55	2.8
20	Wayne Garland W. Garland	2.67	232.1	162	1.43	1976	BAL	38	20	7	.741	25	113	14	4	1	224	69	81	10	64	6	9	9	976	5	4.38	2.48	1.77	0.39	11.6	6.6	1.24	.273	3.14	82	3.12	91	8.68	7.8
21	Jim Palmer J. Palmer	2.68	282.0	158	1.78	1971	BAL	37	20	9	.690	37	184	20	3	0	231	84	94	19	106	4	0	6	1,165	8	5.87	3.38	1.74	0.61	15.8	9.1	1.20	.249	3.00	77	3.19	90	7.37	11.5
22	Wally Bunker W. Bunker	2.69	214.0	163	1.31	1964	BAL	29	19	5	.792	29	96	12	1	0	161	64	72	17	62	3	0	5	850	3	4.04	2.61	1.55	0.71	11.3	7.3	1.04	.214	3.03	77	3.65	100	6.77	-0.2
23	Steve Barber S. Barber	2.69	220.2	162	1.36	1965	BAL	37	15	10	.600	32	130	7	2	0	177	66	79	16	81	2	1	5	897	8	5.30	3.30	1.60	0.65	14.5	9.0	1.17	.241	3.22	79	3.41	97	7.22	2.1
24	Al Hollingsworth A. Hollingsworth	2.70	173.1	154	1.13	1945	SLA	26	12	9	.571	22	64	15	1	1	164	52	60	4	68	0	3		736	2	3.32	3.53	0.94	0.21	8.7	9.2	1.34	.267	3.12	78	3.28	92	8.52	5.8
25	Urban Shocker U. Shocker	2.71	245.2	154	1.6	1920	SLA	38	20	10	.667	28	107	22	5	5	224	74	97	10	70	4	10		978	0	3.92	2.56	1.53	0.37	10.9	7.2	1.20	.272	3.55	69	3.31	88	8.21	12.3