lowest career era with a minimum of 340 ip by active player

Clayton Kershaw has the lowest career ERA by an active pitcher when pitching at least 340 innings, with an ERA of 2.51.

	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	2.51	2753.2	435	212	94	.693	432	2,974	25	15	0	2,102	768	841	228	684	44	1	28	10,863	103	9.72	2.24	4.35	0.75	27.4	6.3	1.01	.270	2.75	64	2.83	70	6.87	365.9
2	Jacob deGrom J. deGrom	2.51	1436.1	230	89	59	.601	230	1,732	4	2	0	1,102	401	438	129	325	23	0	13	5,646	28	10.85	2.04	5.33	0.81	30.7	5.8	0.99	.283	2.74	65	2.63	65	6.91	231.7
3	Aroldis Chapman A. Chapman	2.61	784.0	822	58	46	.558	0	1,278	0	0	344	462	227	251	53	402	33	535	7	3,209	82	14.67	4.61	3.18	0.61	39.8	12.5	1.10	.283	2.88	64	2.41	58	5.30	149
4	Kenley Jansen K. Jansen	2.62	886.2	892	49	38	.563	0	1,238	0	0	458	592	258	276	84	270	31	671	18	3,526	21	12.57	2.74	4.59	0.85	35.1	7.7	0.97	.267	2.80	66	2.59	64	6.01	143.2
5	Josh Hader J. Hader	2.64	484.2	443	29	29	.500	0	790	0	0	213	266	142	152	59	188	23	302	5	1,909	18	14.67	3.49	4.20	1.10	41.4	9.8	0.94	.244	2.82	64	2.79	66	4.94	76.2
6	Blake Treinen B. Treinen	2.79	557.2	507	43	36	.544	7	570	0	0	82	465	173	198	40	207	19	191	22	2,293	23	9.20	3.34	2.75	0.65	24.9	9.0	1.21	.292	3.20	67	3.26	78	7.50	55.4
7	Tyler Rogers T. Rogers	2.85	373.0	367	24	19	.558	0	284	0	0	19	338	118	131	26	73	25	60	4	1,532	3	6.85	1.76	3.89	0.63	18.5	4.8	1.10	.278	3.16	70	3.34	83	8.16	28.7
8	Drew Rasmussen D. Rasmussen	2.86	368.2	110	24	16	.600	61	349	0	0	2	297	117	126	29	95	7	17	2	1,477	17	8.52	2.32	3.67	0.71	23.6	6.4	1.06	.269	3.08	73	3.10	78	7.25	36.5
9	Edwin Díaz E. Díaz	2.96	477.1	482	24	33	.421	0	778	0	0	238	331	157	169	52	172	35	366	9	1,943	31	14.67	3.24	4.52	0.98	40.0	8.9	1.05	.308	3.19	73	2.61	62	6.24	82.8
10	Raisel Iglesias R. Iglesias	2.98	691.0	553	41	53	.436	21	820	0	0	232	544	229	255	82	190	26	421	16	2,791	17	10.68	2.47	4.32	1.07	29.4	6.8	1.06	.276	3.32	70	3.26	78	7.09	72.6
11	Max Fried M. Fried	2.98	959.1	180	80	37	.684	163	933	6	4	0	840	318	353	81	262	39	10	6	3,913	43	8.75	2.46	3.56	0.76	23.8	6.7	1.15	.292	3.31	70	3.25	78	7.88	96.6
12	Shohei Ohtani S. Ohtani	3.01	481.2	86	38	19	.667	86	608	1	1	0	348	161	169	53	173	24	0	2	1,951	42	11.36	3.23	3.51	0.99	31.2	8.9	1.08	.270	3.16	71	3.30	77	6.50	50.1
13	Shane McClanahan S. McClanahan	3.02	404.2	74	33	16	.673	74	456	0	0	0	331	136	143	48	116	5	0	1	1,627	19	10.14	2.58	3.93	1.07	28.0	7.1	1.10	.282	3.18	77	3.35	84	7.36	29.1
14	Chris Sale C. Sale	3.04	2026.0	384	141	86	.621	304	2,500	16	3	12	1,655	684	737	209	474	125	25	15	8,165	47	11.11	2.11	5.27	0.93	30.6	5.8	1.05	.298	3.27	71	2.89	69	7.35	290.5
15	Brandon Woodruff B. Woodruff	3.10	680.1	130	46	26	.639	115	788	2	1	1	535	234	243	75	176	29	4	1	2,727	7	10.42	2.33	4.48	0.99	28.9	6.5	1.05	.277	3.21	73	3.19	75	7.08	81.7
16	Michael King M. King	3.13	477.0	156	30	28	.517	59	547	1	1	7	396	166	193	47	163	22	24	6	1,986	12	10.32	3.08	3.36	0.89	27.5	8.2	1.17	.289	3.64	76	3.32	80	7.47	44.2
17	Corbin Burnes C. Burnes	3.15	968.0	210	63	38	.624	149	1,114	0	0	2	756	339	374	104	280	38	16	3	3,914	42	10.36	2.60	3.98	0.97	28.5	7.2	1.07	.274	3.48	75	3.25	78	7.03	99.8
18	Max Scherzer M. Scherzer	3.16	2881.0	467	215	112	.657	458	3,408	12	5	0	2,349	1,012	1,085	337	756	112	2	20	11,640	78	10.65	2.36	4.51	1.05	29.3	6.5	1.08	.286	3.39	76	3.18	77	7.34	307.9
19	Gerrit Cole G. Cole	3.18	1954.0	317	153	80	.657	317	2,251	8	5	0	1,627	690	740	217	500	61	0	8	7,861	58	10.37	2.30	4.50	1.00	28.6	6.4	1.09	.292	3.41	79	3.16	77	7.49	213.5
20	Blake Snell B. Snell	3.18	1105.2	213	77	58	.570	213	1,372	1	1	0	850	391	426	108	503	11	0	5	4,583	81	11.17	4.09	2.73	0.88	29.9	11.0	1.22	.287	3.47	78	3.35	80	6.92	100.7
21	Kirby Yates K. Yates	3.22	430.0	444	29	23	.558	0	602	0	0	95	312	154	167	57	170	29	200	13	1,785	18	12.60	3.56	3.54	1.19	33.7	9.5	1.12	.275	3.50	79	3.48	84	6.53	32.8
22	Shane Bieber S. Bieber	3.22	843.0	136	62	32	.660	134	958	5	2	0	752	302	323	94	188	18	1	1	3,415	34	10.23	2.01	5.10	1.00	28.1	5.5	1.12	.305	3.45	76	3.08	73	8.03	108
23	A.J. Minter	3.23	359.2	397	24	29	.453	0	436	0	0	36	300	129	142	27	128	8	99	11	1,482	15	10.91	3.20	3.41	0.68	29.4	8.6	1.19	.309	3.55	76	2.85	69	7.51	51.6
24	Tarik Skubal T. Skubal	3.24	647.0	118	46	33	.582	115	747	1	1	0	526	233	251	78	146	24	1	0	2,593	9	10.39	2.03	5.12	1.09	28.8	5.6	1.04	.280	3.49	79	3.20	77	7.32	65.3
25	Chad Green C. Green	3.26	474.1	363	41	29	.586	24	580	0	0	29	375	172	190	71	121	13	85	11	1,887	18	11.00	2.30	4.79	1.35	30.7	6.4	1.05	.276	3.61	77	3.51	81	7.12	44.3