oriole players best era (1983 to 2023) min 300 ip

Between the 1983 and 2023 seasons, Gregg Olson had the best ERA for the Orioles when pitching at least 300 innings, with an ERA of 2.26.

	NAME	ERA	IP	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	Gregg Olson G. Olson	2.26	350.1	320	17	21	.447	0	347	0	0	160	281	88	92	10	158	5	277	22	1,463	31	8.91	4.06	2.20	0.26	23.7	10.8	1.25	.287	2.36	57	2.60	66	7.22	53.5
2	Darren O'Day D. O'Day	2.40	374.1	391	28	14	.667	0	424	0	0	19	269	100	106	41	103	28	97	13	1,492	1	10.19	2.48	4.12	0.99	28.4	6.9	0.99	.254	2.55	58	3.32	79	6.47	36.7
3	Brad Brach B. Brach	2.99	327.2	288	27	15	.643	0	343	0	0	32	263	109	123	31	133	1	96	7	1,349	12	9.42	3.65	2.58	0.85	25.4	9.9	1.21	.276	3.38	72	3.50	82	7.22	27.5
4	Jim Johnson J. Johnson	3.10	400.0	360	18	26	.409	1	265	0	0	122	378	138	148	24	115	20	200	15	1,656	12	5.96	2.59	2.30	0.54	16.0	6.9	1.23	.287	3.33	72	3.54	81	8.51	34.6
5	Zack Britton Z. Britton	3.22	516.2	306	30	22	.577	46	425	0	0	139	460	185	211	32	194	7	211	12	2,134	33	7.40	3.38	2.19	0.56	19.9	9.1	1.27	.290	3.68	77	3.41	81	8.01	44.9
6	Mychal Givens M. Givens	3.41	340.0	302	20	18	.526	0	408	0	0	20	257	129	139	35	135	18	89	9	1,395	15	10.80	3.57	3.02	0.93	29.2	9.7	1.15	.278	3.68	78	3.45	76	6.80	38.7
7	Sammy Stewart S. Stewart	3.53	367.0	174	21	15	.583	2	228	0	0	29	336	144	162	29	180	3	96	21	1,575	19	5.59	4.41	1.27	0.71	14.5	11.4	1.41	.270	3.97	88	4.01	99	8.24	2.2
8	Mike Mussina M. Mussina	3.53	2009.2	288	147	81	.645	288	1,535	45	15	0	1,895	789	836	210	467	22	0	15	8,201	39	6.87	2.09	3.29	0.94	18.7	5.7	1.18	.282	3.74	77	3.62	79	8.49	214.8
9	B.J. Ryan	3.54	379.1	404	16	19	.457	0	464	0	0	42	303	149	160	29	194	12	131	21	1,625	14	11.01	4.60	2.39	0.69	28.6	11.9	1.31	.296	3.80	80	3.21	70	7.19	55.9
10	Storm Davis S. Davis	3.65	843.2	173	53	39	.576	115	472	26	4	5	802	342	373	53	290	10	27	23	3,533	24	5.04	3.09	1.63	0.57	13.4	8.2	1.29	.277	3.98	91	3.51	86	8.56	53
11	Mike Boddicker M. Boddicker	3.72	1235.0	180	78	72	.520	179	810	53	13	0	1,161	510	575	122	425	39	1	22	5,181	36	5.90	3.10	1.91	0.89	15.6	8.2	1.28	.275	4.19	91	3.86	93	8.46	40
12	Wei-Yin Chen W. Chen	3.72	706.2	117	46	32	.590	117	547	0	0	0	713	292	314	97	172	15	0	4	2,954	10	6.97	2.19	3.18	1.24	18.5	5.8	1.25	.290	4.00	92	4.13	100	9.08	0
13	John Means J. Means	3.74	380.1	74	21	26	.447	69	318	1	1	0	326	158	169	70	77	14	1	0	1,541	10	7.52	1.82	4.13	1.66	20.6	5.0	1.06	.241	4.00	83	4.62	100	7.71	1.4
14	Miguel Gonzalez M. Gonzalez	3.82	580.1	101	39	33	.542	95	417	1	1	0	555	246	261	86	190	24	1	8	2,439	15	6.47	2.95	2.19	1.33	17.1	7.8	1.28	.272	4.05	94	4.69	115	8.61	-36.2
15	Erik Bedard E. Bedard	3.83	658.0	114	40	34	.541	111	639	1	1	0	627	280	308	58	254	22	0	2	2,820	20	8.74	3.47	2.52	0.79	22.7	9.0	1.34	.308	4.21	85	3.58	78	8.58	72.3
16	Mark Williamson M. Williamson	3.86	689.2	365	46	35	.568	15	397	2	0	21	701	296	321	62	226	9	142	51	2,927	19	5.18	2.95	1.76	0.81	13.6	7.7	1.34	.286	4.19	93	3.90	94	9.15	20.8
17	Ben McDonald B. McDonald	3.89	937.0	155	58	53	.523	142	638	21	6	0	838	405	434	100	334	20	5	16	3,906	26	6.13	3.21	1.91	0.96	16.3	8.6	1.25	.262	4.17	92	4.08	96	8.05	19.1
18	Mike Flanagan M. Flanagan	4.02	837.2	220	41	46	.471	114	425	20	3	3	864	374	418	81	290	14	39	19	3,582	27	4.57	3.12	1.47	0.87	11.9	8.1	1.38	.282	4.49	99	4.10	100	9.28	2.6
19	Jeremy Guthrie J. Guthrie	4.12	983.1	161	47	65	.420	153	602	4	0	0	971	450	486	133	281	45	4	11	4,154	13	5.51	2.57	2.14	1.22	14.5	6.8	1.27	.271	4.45	94	4.63	105	8.89	-19.7
20	Tommy Hunter T. Hunter	4.16	407.0	224	21	20	.512	31	263	0	0	15	430	188	201	61	77	12	64	9	1,684	4	5.82	1.70	3.42	1.35	15.6	4.6	1.25	.290	4.44	101	4.39	105	9.51	-8.9
21	Alan Mills A. Mills	4.16	480.0	346	32	21	.604	3	354	0	0	14	412	222	231	65	295	15	105	36	2,106	23	6.64	5.53	1.20	1.22	16.8	14.0	1.47	.252	4.33	92	5.24	117	7.73	-40.9
22	Bob Milacki B. Milacki	4.19	703.0	121	37	37	.500	109	350	8	5	1	700	327	344	73	255	5	3	11	2,990	11	4.48	3.26	1.37	0.93	11.7	8.5	1.36	.272	4.40	107	4.26	109	8.96	-26.3
23	Kevin Gausman K. Gausman	4.22	763.2	150	39	51	.433	127	697	1	0	0	801	358	371	110	230	18	4	4	3,254	42	8.21	2.71	3.03	1.30	21.4	7.1	1.35	.314	4.37	100	4.16	96	9.44	13.1
24	Dean Kremer D. Kremer	4.35	370.1	71	22	20	.524	70	313	1	1	0	372	179	189	55	126	11	0	0	1,575	15	7.61	3.06	2.48	1.34	19.9	8.0	1.34	.296	4.59	105	4.54	109	9.04	-15.2
25	Scott McGregor S. McGregor	4.37	966.0	165	60	58	.508	152	383	35	9	0	1,068	469	509	129	263	13	5	7	4,139	11	3.57	2.45	1.46	1.20	9.3	6.4	1.38	.280	4.74	108	4.55	110	9.95	-45