lowest era by a mariners pitcher with a minimum of 1 ip per team game in a season since 1920

Since 1920, Felix Hernandez has the best ERA for the Mariners when he has had 1 or more (IP/TM GMS) in a season, with an ERA of 2.14 in 2014.

	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	Felix Hernandez F. Hernandez	2.14	236.0	162	1.46	2014	SEA	34	15	6	.714	34	248	0	0	0	170	56	68	16	46	5	0	1	912	18	9.46	1.75	5.39	0.61	27.2	5.0	0.92	.258	2.59	58	2.56	69	6.48	30.7
2	Felix Hernandez F. Hernandez	2.27	249.2	162	1.54	2010	SEA	34	13	12	.520	34	232	6	1	0	194	63	80	17	70	8	0	1	1,001	14	8.36	2.52	3.31	0.61	23.2	7.0	1.06	.263	2.88	58	3.04	75	6.99	28.4
3	Randy Johnson R. Johnson	2.28	213.0	162	1.31	1997	SEA	30	20	4	.833	29	291	5	2	0	147	54	60	20	77	10	0	2	850	4	12.30	3.25	3.78	0.85	34.2	9.1	1.05	.281	2.54	50	2.82	62	6.21	41.3
4	Randy Johnson R. Johnson	2.48	214.1	145	1.48	1995	SEA	30	18	2	.900	30	294	6	3	0	159	59	65	12	65	6	0	1	866	5	12.35	2.73	4.52	0.50	33.9	7.5	1.05	.301	2.73	53	2.08	44	6.68	62
5	Felix Hernandez F. Hernandez	2.49	238.2	162	1.47	2009	SEA	34	19	5	.792	34	217	2	1	0	200	66	81	15	71	8	0	0	977	17	8.18	2.68	3.06	0.57	22.2	7.3	1.14	.278	3.05	58	3.08	71	7.54	33.4
6	Bryan Woo B. Woo	2.65	57.2	49	1.18	2025	SEA	9	5	1	.833	9	55	0	0	0	42	17	17	5	8	1	0	0	222	0	8.58	1.25	6.88	0.78	24.8	3.6	0.87	.242	2.65	71	2.77	71	6.55	7.6
7	Hisashi Iwakuma H. Iwakuma	2.66	219.2	162	1.36	2013	SEA	33	14	6	.700	33	185	0	0	0	179	65	69	25	42	2	0	4	866	10	7.58	1.72	4.40	1.02	21.4	4.8	1.01	.252	2.83	70	3.44	89	7.33	10.9
8	Bryce Miller B. Miller	2.94	180.1	162	1.11	2024	SEA	31	12	8	.600	31	171	0	0	0	131	59	62	21	45	3	0	1	704	2	8.53	2.25	3.80	1.05	24.3	6.4	0.98	.237	3.09	78	3.58	91	6.54	6.9
9	Felix Hernandez F. Hernandez	3.04	204.1	162	1.26	2013	SEA	31	12	10	.545	31	216	0	0	0	185	69	74	15	46	3	0	1	823	13	9.51	2.03	4.70	0.66	26.2	5.6	1.13	.313	3.26	79	2.60	67	8.15	29.5
10	Freddy Garcia F. Garcia	3.05	238.2	162	1.47	2001	SEA	34	18	6	.750	34	163	4	3	0	199	81	88	16	69	5	0	6	971	3	6.15	2.60	2.36	0.60	16.8	7.1	1.12	.255	3.32	71	3.48	80	7.50	23
11	Felix Hernandez F. Hernandez	3.06	232.0	162	1.43	2012	SEA	33	13	9	.591	33	223	5	5	0	209	79	84	14	56	12	0	0	939	13	8.65	2.17	3.98	0.54	23.7	6.0	1.14	.308	3.26	80	2.83	71	8.11	31
12	Marco Gonzales M. Gonzales	3.10	69.2	60	1.16	2020	SEA	11	7	2	.778	11	64	1	0	0	59	24	27	8	7	4	0	0	277	0	8.27	0.90	9.14	1.03	23.1	2.5	0.95	.263	3.49	74	3.31	77	7.62	7.9
13	Randy Johnson R. Johnson	3.19	172.0	112	1.54	1994	SEA	23	13	6	.684	23	204	9	4	0	132	61	65	14	72	6	0	2	694	5	10.67	3.77	2.83	0.73	29.4	10.4	1.19	.296	3.40	67	3.17	67	6.91	29.9
14	Luis Castillo L. Castillo	3.20	56.1	49	1.15	2025	SEA	10	4	3	.571	10	44	0	0	0	51	20	20	4	20	1	0	0	238	0	7.03	3.20	2.20	0.64	18.5	8.4	1.26	.278	3.20	85	3.56	91	8.15	2.3
15	Logan Gilbert L. Gilbert	3.20	185.2	162	1.15	2022	SEA	32	13	6	.684	32	174	0	0	0	170	66	71	19	49	6	0	2	766	5	8.43	2.38	3.55	0.92	22.7	6.4	1.18	.292	3.44	86	3.45	90	8.24	7.6
16	Logan Gilbert L. Gilbert	3.23	208.2	162	1.29	2024	SEA	33	8	12	.400	33	220	1	0	0	148	75	83	26	37	4	0	1	803	11	9.49	1.60	5.95	1.12	27.4	4.6	0.89	.236	3.58	86	3.26	83	6.38	15.6
17	Erik Hanson E. Hanson	3.24	236.0	162	1.46	1990	SEA	33	18	9	.667	33	211	5	1	0	205	85	88	15	68	2	0	6	964	10	8.05	2.59	3.10	0.57	21.9	7.1	1.16	.284	3.36	81	2.73	68	7.82	32.6
18	Joel Pineiro J. Pineiro	3.24	194.1	162	1.2	2002	SEA	37	14	7	.667	28	136	2	1	0	189	70	75	24	54	7	4	1	812	8	6.30	2.50	2.52	1.11	16.7	6.7	1.25	.279	3.47	77	4.10	96	8.75	3.6
19	Randy Johnson R. Johnson	3.24	255.1	162	1.58	1993	SEA	35	19	8	.704	34	308	10	3	1	185	92	97	22	99	16	1	1	1,043	8	10.86	3.49	3.11	0.78	29.5	9.5	1.11	.273	3.42	74	3.04	70	6.52	36.2
20	Jamie Moyer J. Moyer	3.27	215.0	162	1.33	2003	SEA	33	21	7	.750	33	129	1	0	0	199	78	83	19	66	8	0	3	897	0	5.40	2.76	1.95	0.80	14.4	7.4	1.23	.267	3.47	76	4.01	92	8.33	8.7
21	Matt Young M. Young	3.27	203.2	162	1.26	1983	SEA	33	11	15	.423	32	130	5	2	0	178	74	86	17	79	7	0	2	851	4	5.74	3.49	1.65	0.75	15.3	9.3	1.26	.261	3.80	80	3.82	92	7.87	7.7
22	Jamie Moyer J. Moyer	3.32	230.2	162	1.42	2002	SEA	34	13	8	.619	34	147	4	2	0	198	85	89	28	50	9	0	4	931	3	5.74	1.95	2.94	1.09	15.8	5.4	1.08	.244	3.47	79	4.02	94	7.73	6.3
23	Luis Castillo L. Castillo	3.34	197.0	162	1.22	2023	SEA	33	13	9	.591	33	219	0	0	0	160	73	81	28	56	5	0	0	802	3	10.01	2.56	3.91	1.28	27.3	7.0	1.10	.267	3.70	83	3.80	93	7.31	6.6
24	Scott Bankhead S. Bankhead	3.34	210.1	162	1.3	1989	SEA	33	14	6	.700	33	140	3	2	0	187	78	84	19	63	3	0	1	862	2	5.99	2.70	2.22	0.81	16.2	7.3	1.19	.264	3.59	83	3.54	91	8.00	8.7
25	Mark Langston M. Langston	3.34	261.1	161	1.62	1988	SEA	35	15	11	.577	35	235	9	3	0	222	97	108	32	110	3	0	2	1,078	7	8.09	3.79	2.14	1.10	21.8	10.2	1.27	.272	3.72	81	3.85	94	7.65	7.7