lowest career era since 2003 with 500 innings pitched

Since 2003, Mariano Rivera has the best ERA when pitching at least 500 innings, with an ERA of 1.89.

Interpreted as:

lowest career era by a player since 2003 with 500 or more innings pitched

	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	Mariano Rivera M. Rivera	1.89	704.2	667	44	33	.571	0	654	0	0	409	544	148	161	37	119	35	604	21	2,754	4	8.35	1.52	5.50	0.47	23.7	4.3	0.94	.266	2.06	43	2.56	59	6.95	140.9
2	Joe Nathan J. Nathan	2.42	736.0	744	52	28	.650	0	859	0	0	376	516	198	209	55	235	18	582	27	2,938	40	10.50	2.87	3.66	0.67	29.2	8.0	1.02	.260	2.56	57	2.75	66	6.31	119.6
3	Jonathan Papelbon J. Papelbon	2.44	725.2	689	41	36	.532	3	808	0	0	368	572	197	226	57	185	34	585	18	2,938	14	10.02	2.29	4.37	0.71	27.5	6.3	1.04	.278	2.80	58	2.80	69	7.09	105.2
4	Aroldis Chapman A. Chapman	2.52	821.1	863	60	47	.561	0	1,331	0	0	367	475	230	255	54	408	33	563	7	3,341	87	14.58	4.47	3.26	0.59	39.8	12.2	1.08	.278	2.79	61	2.36	57	5.20	161.8
5	Clayton Kershaw C. Kershaw	2.53	2855.1	455	223	96	.699	451	3,052	25	15	0	2,193	804	881	235	713	46	1	28	11,279	108	9.62	2.25	4.28	0.74	27.1	6.3	1.02	.271	2.78	65	2.85	70	6.91	375.1
6	Kenley Jansen K. Jansen	2.57	927.1	934	54	40	.574	0	1,278	0	0	475	610	265	284	88	282	32	700	20	3,680	21	12.40	2.74	4.53	0.85	34.7	7.7	0.96	.261	2.76	65	2.62	64	5.92	147.2
7	Jacob deGrom J. deGrom	2.57	1539.2	248	96	65	.596	248	1,851	4	2	0	1,173	440	477	146	345	25	0	13	6,045	30	10.82	2.02	5.37	0.85	30.6	5.7	0.99	.279	2.79	66	2.70	66	6.86	239.4
8	Craig Kimbrel C. Kimbrel	2.58	821.2	851	56	48	.538	0	1,282	0	0	440	492	236	263	75	346	40	656	11	3,306	70	14.04	3.79	3.71	0.82	38.8	10.5	1.02	.267	2.88	63	2.60	64	5.39	131.8
9	Darren O'Day D. O'Day	2.59	609.0	644	42	21	.667	0	637	0	0	21	458	175	189	64	172	50	155	24	2,461	3	9.41	2.54	3.70	0.95	25.9	7.0	1.03	.256	2.79	61	3.48	82	6.77	52.4
10	Josh Hader J. Hader	2.64	512.1	468	34	31	.523	0	829	0	0	226	282	150	164	65	198	24	321	6	2,019	19	14.56	3.48	4.19	1.14	41.1	9.8	0.94	.240	2.88	64	2.88	69	4.95	75.7
11	Brad Ziegler B. Ziegler	2.75	717.1	739	37	38	.493	0	479	0	0	105	654	219	251	32	248	25	264	55	2,947	7	6.01	3.11	1.93	0.40	16.3	8.4	1.26	.288	3.15	68	3.49	87	8.21	41.9
12	Rafael Soriano R. Soriano	2.75	589.0	581	24	25	.490	0	609	0	0	206	444	180	188	54	181	15	342	19	2,369	11	9.31	2.77	3.36	0.83	25.7	7.6	1.06	.258	2.87	67	3.22	78	6.78	61.6
13	Edwin Díaz E. Díaz	2.82	519.1	520	28	36	.438	0	839	0	0	253	356	163	176	54	182	40	395	9	2,105	33	14.54	3.15	4.61	0.94	39.9	8.6	1.04	.305	3.05	70	2.55	61	6.17	93.4
14	Francisco Rodriguez F. Rodriguez	2.88	970.1	943	52	53	.495	0	1,129	0	0	437	735	310	336	98	387	16	673	41	3,990	68	10.47	3.59	2.92	0.91	28.3	9.7	1.16	.270	3.12	69	3.32	80	6.82	94.2
15	Tony Watson T. Watson	2.90	648.1	689	47	29	.618	0	570	0	0	32	528	209	222	63	174	33	109	20	2,620	5	7.91	2.42	3.28	0.87	21.8	6.6	1.08	.261	3.08	73	3.59	91	7.33	24.5
16	Blake Treinen B. Treinen	2.90	576.1	531	45	41	.523	7	596	0	0	82	487	186	213	43	223	20	197	26	2,386	24	9.31	3.48	2.67	0.67	25.0	9.3	1.23	.295	3.33	70	3.32	80	7.60	53.5
17	Raisel Iglesias R. Iglesias	2.92	736.0	600	42	55	.433	21	869	0	0	253	570	239	265	83	202	27	459	17	2,962	17	10.63	2.47	4.30	1.01	29.3	6.8	1.05	.273	3.24	69	3.19	76	6.97	82.7
18	David Robertson D. Robertson	2.93	894.1	881	68	46	.596	1	1,176	0	0	179	674	291	315	81	365	25	358	38	3,690	57	11.83	3.67	3.22	0.82	31.9	9.9	1.16	.290	3.17	70	2.98	70	6.78	122.3
19	Mark Melancon M. Melancon	2.94	726.2	732	37	40	.481	0	643	0	0	262	657	237	276	44	192	25	454	23	2,981	44	7.96	2.38	3.35	0.54	21.6	6.4	1.17	.295	3.42	73	3.03	76	8.14	75.9
20	Huston Street H. Street	2.95	680.0	668	42	34	.553	0	665	0	0	324	542	223	237	70	183	8	525	37	2,718	20	8.80	2.42	3.63	0.93	24.5	6.7	1.07	.263	3.14	71	3.32	81	7.17	61.7
21	Jared Hughes J. Hughes	2.96	541.1	542	30	26	.536	0	371	0	0	12	480	178	210	47	190	40	129	25	2,247	29	6.17	3.16	1.95	0.78	16.5	8.5	1.24	.271	3.49	74	4.17	103	7.98	-8.5
22	Steve Cishek S. Cishek	2.98	710.2	737	33	43	.434	0	743	0	0	133	565	235	264	54	288	59	312	38	2,993	29	9.41	3.65	2.58	0.68	24.8	9.6	1.20	.276	3.34	75	3.48	86	7.16	41.6
23	Roger Clemens R. Clemens	2.99	849.2	135	61	33	.649	134	763	2	1	0	707	282	312	66	259	23	0	12	3,465	23	8.08	2.74	2.95	0.70	22.0	7.5	1.14	.272	3.30	68	3.27	74	7.49	108.1
24	Shohei Ohtani S. Ohtani	3.00	528.2	100	39	20	.661	100	670	1	1	0	388	176	184	56	182	24	0	2	2,139	52	11.41	3.10	3.68	0.95	31.3	8.5	1.08	.275	3.13	71	3.17	74	6.61	62.1
25	Chris Sale C. Sale	3.01	2084.0	393	145	88	.622	312	2,579	16	3	12	1,692	697	750	213	487	130	25	15	8,389	48	11.14	2.10	5.30	0.92	30.7	5.8	1.05	.297	3.24	70	2.87	68	7.31	303.3