lowest career era since 1920 with at least 2500 innings pitched

Since 1920, Clayton Kershaw has the lowest ERA when pitching at least 2500 innings, with an ERA of 2.53.

Interpreted as:

lowest career era by a player since 1920 with at least 2500 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	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
2	Whitey Ford W. Ford	2.75	3170.1	498	236	106	.690	438	1,956	156	45	11	2,766	967	1,107	228	1,086	28	35	44	13,036	75	5.55	3.08	1.80	0.65	15.0	8.3	1.22	.261	3.14	75	3.26	88	7.85	156.9
3	Jim Palmer J. Palmer	2.86	3948.0	558	268	152	.638	521	2,212	211	53	4	3,349	1,253	1,395	303	1,311	38	15	37	16,114	85	5.04	2.99	1.69	0.69	13.7	8.1	1.18	.249	3.18	80	3.50	95	7.63	83.2
4	Tom Seaver T. Seaver	2.86	4783.0	656	311	205	.603	647	3,640	231	61	1	3,971	1,521	1,674	380	1,390	76	6	116	19,369	126	6.85	2.62	2.62	0.72	18.8	7.2	1.12	.259	3.15	79	3.03	85	7.47	286.1
5	Juan Marichal J. Marichal	2.89	3507.0	471	243	142	.631	457	2,303	244	52	2	3,153	1,126	1,329	320	709	40	11	82	14,236	51	5.91	1.82	3.25	0.82	16.2	5.0	1.10	.261	3.41	81	3.04	88	8.09	154.8
6	Bob Gibson B. Gibson	2.91	3884.1	528	251	174	.591	482	3,117	255	56	6	3,279	1,258	1,420	257	1,336	102	21	118	16,068	108	7.22	3.10	2.33	0.60	19.4	8.3	1.19	.268	3.29	78	2.89	81	7.60	290.5
7	Pedro Martinez P. Martinez	2.93	2827.1	476	219	100	.687	409	3,154	46	17	3	2,221	919	1,006	239	760	141	23	30	11,394	62	10.04	2.42	4.15	0.76	27.7	6.7	1.05	.279	3.20	66	2.91	68	7.07	454.6
8	Don Drysdale D. Drysdale	2.95	3432.0	518	209	166	.557	465	2,486	167	49	6	3,084	1,124	1,292	280	855	154	34	123	14,097	82	6.52	2.24	2.91	0.73	17.6	6.1	1.15	.272	3.39	83	3.02	88	8.09	162.2
9	Mel Stottlemyre M. Stottlemyre	2.97	2661.1	360	164	139	.541	356	1,257	152	40	1	2,435	878	1,003	171	809	44	3	75	10,972	57	4.25	2.74	1.55	0.58	11.5	7.4	1.22	.260	3.39	90	3.36	98	8.23	14.4
10	Carl Hubbell C. Hubbell	2.98	3590.1	535	253	154	.622	433	1,677	260	36	33	3,461	1,188	1,380	227	725	53	82		14,805	53	4.20	1.82	2.31	0.57	11.3	4.9	1.17	.267	3.46	76	3.55	89	8.68	174.2
11	Hal Newhouser H. Newhouser	3.06	2993.0	488	207	150	.580	374	1,796	212	33	26	2,674	1,016	1,197	136	1,249	19	79	1	12,648	65	5.40	3.76	1.44	0.41	14.2	9.9	1.31	.269	3.60	76	3.19	80	8.04	244.2
12	Lefty Grove L. Grove	3.06	3940.2	616	300	141	.680	457	2,266	298	35	54	3,849	1,339	1,594	162	1,187	42	123		16,622	51	5.18	2.71	1.91	0.37	13.6	7.1	1.28	.284	3.64	68	3.36	76	8.79	462.8
13	Warren Spahn W. Spahn	3.09	5243.2	750	363	245	.597	665	2,583	382	63	28	4,830	1,798	2,016	434	1,434	42	67	60	21,547	81	4.43	2.46	1.80	0.74	12.0	6.7	1.19	.258	3.46	84	3.44	94	8.29	124.4
14	Gaylord Perry G. Perry	3.11	5350.0	777	314	265	.542	690	3,534	303	53	10	4,938	1,846	2,128	399	1,379	108	33	164	21,953	160	5.95	2.32	2.56	0.67	16.1	6.3	1.18	.275	3.58	85	3.06	85	8.31	312.9
15	Roger Clemens R. Clemens	3.12	4916.2	709	354	184	.658	707	4,672	118	46	0	4,185	1,707	1,885	363	1,580	159	0	63	20,240	143	8.55	2.89	2.96	0.66	23.1	7.8	1.17	.284	3.45	70	3.08	71	7.66	680.4
16	Mike Cuellar M. Cuellar	3.14	2808.0	453	185	130	.587	379	1,632	172	36	11	2,538	979	1,130	222	822	12	33	61	11,505	53	5.23	2.63	1.99	0.71	14.2	7.1	1.20	.263	3.62	91	3.28	94	8.13	61.8
17	Greg Maddux G. Maddux	3.16	5008.1	744	355	227	.610	740	3,371	109	35	0	4,726	1,756	1,981	353	999	137	3	177	20,421	70	6.06	1.80	3.37	0.63	16.5	4.9	1.14	.281	3.56	76	3.25	78	8.49	519.5
18	Steve Rogers S. Rogers	3.17	2837.2	399	158	152	.510	393	1,621	129	37	2	2,619	1,001	1,122	151	876	43	3	75	11,702	87	5.14	2.78	1.85	0.48	13.9	7.5	1.23	.274	3.56	87	3.19	88	8.31	137.7
19	Lon Warneke L. Warneke	3.18	2782.1	445	192	121	.613	343	1,140	192	30	14	2,726	984	1,164	175	739	27	66		11,608	50	3.69	2.39	1.54	0.57	9.8	6.4	1.25	.268	3.77	83	3.74	95	8.82	56.7
20	Nolan Ryan N. Ryan	3.19	5386.0	807	324	292	.526	773	5,714	222	61	3	3,923	1,911	2,178	321	2,795	158	13	78	22,575	277	9.55	4.67	2.04	0.54	25.3	12.4	1.25	.265	3.64	90	2.96	83	6.56	370.2
21	Steve Carlton S. Carlton	3.22	5217.2	741	329	244	.574	709	4,136	254	55	2	4,672	1,864	2,130	414	1,833	53	13	150	21,683	183	7.13	3.16	2.26	0.71	19.1	8.5	1.25	.279	3.67	87	3.14	86	8.06	271.5
22	Max Scherzer M. Scherzer	3.22	2963.0	483	220	117	.653	474	3,489	12	5	0	2,433	1,059	1,132	354	779	114	2	20	11,987	80	10.60	2.37	4.48	1.08	29.1	6.5	1.08	.287	3.44	77	3.23	78	7.39	302.5
23	Dazzy Vance D. Vance	3.22	2933.2	431	197	136	.592	345	2,027	216	29	12	2,774	1,050	1,224	131	817	74	47		12,220	36	6.22	2.51	2.48	0.40	16.6	6.7	1.22	.288	3.76	80	3.17	78	8.51	292.4
24	Dizzy Trout D. Trout	3.23	2725.2	521	170	161	.514	322	1,256	158	28	38	2,641	979	1,166	112	1,046	34	134	0	11,615	50	4.15	3.45	1.20	0.37	10.8	9.0	1.35	.276	3.85	81	3.34	85	8.72	179
25	Bob Lemon B. Lemon	3.23	2850.0	460	207	128	.618	350	1,277	188	31	22	2,559	1,024	1,185	180	1,251	57	73	13	12,099	63	4.03	3.95	1.02	0.57	10.6	10.3	1.34	.255	3.74	84	3.79	99	8.08	7.5