Jacob deGrom has the best career ERA by an active pitcher, with an ERA of 2.51.

Interpreted as:

active pitchers with lowest career era with a minimum of 750 IP

	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	Jacob deGrom J. deGrom	2.51	1479.1	237	93	59	.612	237	1,779	4	2	0	1,129	412	449	133	332	24	0	13	5,807	28	10.82	2.02	5.36	0.81	30.6	5.7	0.99	.281	2.73	64	2.63	65	6.87	239
2	Clayton Kershaw C. Kershaw	2.52	2793.1	442	216	95	.695	439	3,003	25	15	0	2,139	781	856	233	693	45	1	28	11,023	105	9.68	2.23	4.33	0.75	27.2	6.3	1.01	.270	2.76	64	2.84	70	6.89	366.5
3	Aroldis Chapman A. Chapman	2.56	798.0	837	58	46	.558	0	1,304	0	0	352	466	227	252	53	403	33	544	7	3,256	82	14.71	4.55	3.24	0.60	40.0	12.4	1.09	.282	2.84	62	2.36	57	5.26	156.1
4	Kenley Jansen K. Jansen	2.60	903.0	910	52	38	.578	0	1,256	0	0	462	603	261	280	86	274	31	680	20	3,592	21	12.52	2.73	4.58	0.86	35.0	7.6	0.97	.266	2.79	66	2.60	64	6.01	145
5	Max Fried M. Fried	3.00	1006.1	188	84	39	.683	171	976	6	4	0	879	335	372	85	273	42	10	6	4,103	44	8.73	2.44	3.58	0.76	23.8	6.7	1.14	.291	3.33	70	3.25	78	7.86	101.8
6	Chris Sale C. Sale	3.02	2047.2	387	143	87	.622	307	2,528	16	3	12	1,668	686	739	209	481	126	25	15	8,249	47	11.11	2.11	5.26	0.92	30.6	5.8	1.05	.297	3.25	71	2.88	69	7.33	297
7	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	100.4
8	Max Scherzer M. Scherzer	3.17	2901.0	471	216	112	.659	462	3,431	12	5	0	2,368	1,022	1,095	340	763	113	2	20	11,723	79	10.64	2.37	4.50	1.05	29.3	6.5	1.08	.287	3.40	76	3.19	77	7.35	308.2
9	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
10	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	100.8
11	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
12	Framber Valdez F. Valdez	3.24	1009.2	176	78	45	.634	154	991	9	3	0	836	363	400	80	362	56	7	1	4,172	55	8.83	3.23	2.74	0.71	23.8	8.7	1.19	.282	3.57	78	3.47	84	7.45	75.6
13	Zack Wheeler Z. Wheeler	3.27	1700.2	278	112	73	.605	278	1,779	5	3	0	1,447	617	669	160	483	72	0	14	6,968	40	9.41	2.56	3.68	0.85	25.5	6.9	1.13	.288	3.54	82	3.26	79	7.66	164
14	Seth Lugo S. Lugo	3.30	948.2	351	62	45	.579	114	917	1	0	16	834	348	375	110	252	34	66	18	3,888	20	8.70	2.39	3.64	1.04	23.6	6.5	1.14	.281	3.56	81	3.64	88	7.91	53.7
15	Justin Verlander J. Verlander	3.33	3492.1	541	262	154	.630	541	3,483	26	9	0	2,974	1,292	1,399	365	978	118	0	27	14,282	98	8.98	2.52	3.56	0.94	24.4	6.8	1.13	.279	3.61	79	3.43	81	7.66	306.3
16	Logan Webb L. Webb	3.36	981.0	166	63	46	.578	163	909	3	2	0	929	366	403	69	232	32	0	4	4,007	22	8.34	2.13	3.92	0.63	22.7	5.8	1.18	.311	3.70	82	3.03	76	8.52	109.1
17	Sonny Gray S. Gray	3.51	1845.1	326	119	97	.551	317	1,842	7	5	0	1,588	719	787	177	602	57	2	5	7,631	105	8.98	2.94	3.06	0.86	24.1	7.9	1.19	.285	3.84	85	3.47	84	7.74	138.1
18	Luis Castillo L. Castillo	3.54	1338.1	230	78	81	.491	230	1,424	1	0	0	1,140	527	575	163	441	44	0	8	5,531	17	9.58	2.97	3.23	1.10	25.7	8.0	1.18	.282	3.87	85	3.71	88	7.67	76.8
19	Walker Buehler W. Buehler	3.55	791.2	147	53	28	.654	138	817	3	1	0	675	312	345	101	225	35	2	4	3,257	22	9.29	2.56	3.63	1.15	25.1	6.9	1.14	.276	3.92	86	3.74	89	7.67	43.5
20	Zac Gallen Z. Gallen	3.55	930.1	163	60	45	.571	163	995	2	2	0	780	367	390	107	303	35	0	3	3,825	32	9.63	2.93	3.28	1.04	26.0	7.9	1.16	.282	3.77	84	3.61	89	7.55	48.5
21	Logan Gilbert L. Gilbert	3.59	765.1	133	42	33	.560	133	799	2	1	0	648	305	325	100	165	20	0	6	3,091	34	9.40	1.94	4.84	1.18	25.8	5.3	1.06	.273	3.82	92	3.50	88	7.62	41.3
22	Yu Darvish Y. Darvish	3.59	1714.1	284	110	89	.553	284	2,014	2	1	0	1,402	684	718	217	550	79	0	8	7,049	80	10.57	2.89	3.66	1.14	28.6	7.8	1.14	.283	3.77	86	3.54	84	7.36	125.6
23	Chris Bassitt C. Bassitt	3.64	1215.1	220	81	60	.574	206	1,129	3	2	0	1,125	491	530	134	386	92	6	6	5,138	33	8.36	2.86	2.92	0.99	22.0	7.5	1.24	.292	3.92	89	3.92	94	8.33	31.7
24	Lance McCullers Jr. L. McCullers Jr.	3.65	760.1	140	51	36	.586	137	849	1	0	0	646	308	331	66	322	43	0	4	3,217	48	10.05	3.81	2.64	0.78	26.4	10.0	1.27	.299	3.92	89	3.48	84	7.65	59
25	Freddy Peralta F. Peralta	3.65	866.0	198	64	40	.615	149	1,067	1	0	1	651	351	372	109	331	46	6	3	3,586	30	11.09	3.44	3.22	1.13	29.8	9.2	1.13	.267	3.87	86	3.64	86	6.77	55.4