Mariano Rivera and Walter Johnson were tied for playing the most seasons with an ERA better than 2.00, with 11 seasons.

Interpreted as:

most years by a player with a lower than 2 era

	NAME	SEAS	ERA	G	W	L	W%	GS	SO	CG	SHO	SV	IP	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	Mariano Rivera M. Rivera	11	1.75	713	47	33	.588	0	674	0	0	454	763.0	568	148	163	37	151	32	644	24	2,986	7	7.95	1.78	4.46	0.44	22.6	5.1	0.94	.254	1.92	39	2.66	60	6.70	151.2
2	Walter Johnson W. Johnson	11	1.55	457	261	150	.635	369	2,262	331	74	18	3468.1	2,650	596	886	27	666	113	84		13,262	110	5.87	1.73	3.40	0.07	17.1	5.0	0.96	.257	2.30	55	1.92	68	6.88	354.3
3	Joe Nathan J. Nathan	8	1.52	355	21	8	.724	0	420	0	0	200	355.0	225	60	64	17	102	7	307	16	1,380	18	10.65	2.59	4.12	0.43	30.4	7.4	0.92	.249	1.62	34	2.29	54	5.70	79
4	Billy Wagner B. Wagner	6	1.58	308	17	11	.607	0	446	0	0	158	323.2	178	57	68	25	96	11	258	11	1,250	12	12.40	2.67	4.65	0.70	35.7	7.7	0.85	.228	1.89	37	2.30	54	4.95	71.9
5	Hoyt Wilhelm H. Wilhelm	6	1.76	358	43	35	.551	0	500	0	0	93	632.1	423	124	159	35	171	14	243	21	2,462	30	7.12	2.43	2.92	0.50	20.3	6.9	0.94	.223	2.26	53	2.55	74	6.02	63.4
6	Grover Alexander G. Alexander	6	1.64	221	139	61	.695	201	917	164	52	12	1777.2	1,446	324	437	24	280	28	19		6,915	10	4.64	1.42	3.28	0.12	13.3	4.0	0.97	.251	2.21	57	2.10	72	7.32	158
7	Ed Walsh E. Walsh	6	1.50	242	117	77	.603	193	1,043	159	42	19	1791.2	1,326	298	457	11	319	32	44		6,766	45	5.24	1.60	3.27	0.06	15.4	4.7	0.92	.245	2.30	63	1.73	75	6.66	107.8
8	Mordecai Brown M. Brown	6	1.47	236	142	54	.724	178	770	154	42	26	1673.0	1,249	274	418	9	317	32	55		6,341	32	4.14	1.71	2.43	0.05	12.1	5.0	0.94	.238	2.25	56	2.03	76	6.72	121.1
9	Cy Young C. Young	6	1.79	256	155	83	.651	234	1,033	220	37	5	2167.1	1,778	430	642	27	302	35	21		8,335	35	4.29	1.25	3.42	0.11	12.4	3.6	0.96	.252	2.67	62	2.12	73	7.38	189.8
10	Zack Britton Z. Britton	5	1.52	290	13	7	.650	0	284	0	0	131	289.1	185	49	59	11	94	3	195	5	1,113	22	8.83	2.92	3.02	0.34	25.5	8.4	0.96	.241	1.84	37	2.69	63	5.75	49.7
11	Craig Kimbrel C. Kimbrel	5	1.25	282	16	7	.696	0	475	0	0	175	281.0	138	39	43	15	90	11	228	3	1,075	23	15.21	2.88	5.28	0.48	44.2	8.4	0.81	.254	1.38	32	1.49	39	4.42	75.3
12	Darren O'Day D. O'Day	5	1.64	231	17	5	.773	0	239	0	0	12	214.1	141	39	45	15	57	22	53	6	849	1	10.04	2.39	4.19	0.63	28.2	6.7	0.92	.244	1.89	39	2.91	70	5.92	30.2
13	Don McMahon D. McMahon	5	1.81	215	22	13	.629	0	287	0	0	28	347.2	231	70	81	18	139	10	111	19	1,394	22	7.43	3.60	2.06	0.47	20.6	10.0	1.06	.227	2.10	54	2.82	82	5.98	24.2
14	George Sisler G. Sisler	5	0.82	7	1	2	.333	3	18	3	1	2	33.0	19	3	4	0	10	1	4		119	0	4.91	2.73	1.80	0.00	15.1	8.4	0.88	.211	1.09	30	2.34	78	5.18	2.5
15	Eddie Cicotte E. Cicotte	5	1.70	201	104	42	.712	136	554	98	18	12	1270.2	981	240	349	13	318	10	50		4,851	11	3.92	2.25	1.74	0.09	11.4	6.6	1.02	.245	2.47	60	2.42	85	6.95	60.8
16	Christy Mathewson C. Mathewson	5	1.55	219	146	48	.753	186	939	148	34	13	1630.0	1,320	280	429	21	240	8	28		6,211	22	5.18	1.33	3.91	0.12	15.1	3.9	0.96	.260	2.37	54	1.85	63	7.29	188.5
17	Addie Joss A. Joss	5	1.60	176	100	54	.649	156	513	135	33	5	1380.2	1,089	245	380	8	188	23	18		5,208	15	3.34	1.23	2.73	0.05	9.9	3.6	0.92	.242	2.48	64	2.03	85	7.10	53.3
18	Devin Williams D. Williams	4	1.45	170	19	8	.704	0	274	0	0	65	168.0	75	27	37	8	78	7	90	3	659	10	14.68	4.18	3.51	0.43	41.6	11.8	0.91	.229	1.98	35	2.05	48	4.02	40.6
19	Charlie Culberson C. Culberson	4	0.00	7	0	0		0	1	0	0	0	6.1	5	0	0	0	3	0	7	0	26	1	1.42	4.26	0.33	0.00	3.8	11.5	1.26	.227	0.00	0	4.26	100	7.11	0
20	Kevin Plawecki K. Plawecki	4	0.00	5	0	0		0	0	0	0	0	4.2	1	0	0	0	1	0	5	0	16	0	0.00	1.93	0.00	0.00	0.0	6.3	0.43	.067	0.00	0	3.81	88	1.93	0.3
21	Edwin Díaz E. Díaz	4	1.66	222	11	9	.550	0	390	0	0	123	227.1	130	42	46	14	70	18	181	1	883	13	15.44	2.77	5.57	0.55	44.2	7.9	0.88	.297	1.82	41	1.67	40	5.15	62.2
22	Blake Treinen B. Treinen	4	1.50	195	23	11	.676	0	247	0	0	46	204.1	126	34	44	13	58	6	75	4	802	10	10.88	2.55	4.26	0.57	30.8	7.2	0.90	.236	1.94	37	2.51	60	5.55	38.2
23	Ken Giles K. Giles	4	1.61	171	11	7	.611	0	240	0	0	39	173.0	121	31	41	8	57	1	86	4	690	5	12.49	2.97	4.21	0.42	34.8	8.3	1.03	.294	2.13	40	1.98	48	6.29	40.4
24	Aroldis Chapman A. Chapman	4	1.47	259	18	13	.581	0	413	0	0	139	257.1	138	42	47	12	89	9	201	1	1,004	25	14.44	3.11	4.64	0.42	41.1	8.9	0.88	.262	1.64	36	1.66	40	4.83	68.9
25	Greg Holland G. Holland	4	1.53	207	11	5	.688	0	298	0	0	103	217.2	134	37	45	10	64	4	145	5	840	19	12.32	2.65	4.66	0.41	35.5	7.6	0.91	.267	1.86	37	1.87	47	5.54	50.7