Mordecai Brown has the lowest career ERA in the NL, with an ERA of 1.93.

Interpreted as:

best nl with a minimum of 1500 IP pitcher since

	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	Mordecai Brown M. Brown	1.93	2703.1	411	208	111	.652	281	1,167	236	50	45	2,284	579	863	33	548	51	121		10,523	48	3.89	1.82	2.13	0.11	11.1	5.2	1.05	.258	2.87	67	2.37	82	7.60	151.9
2	Will White W. White	2.03	1710.1	195	93	97	.489	194	574	190	13	0	1,754	385	1,009	20	173		1		7,258	127	3.02	0.91	3.32	0.11	7.9	2.4	1.13		5.31	86	2.41	103	9.23	-30.8
3	John Ward J. Ward	2.10	2469.2	293	164	103	.614	262	920	245	24	3	2,324	576	1,185	26	253		32		10,164	144	3.35	0.92	3.64	0.09	9.1	2.5	1.04		4.32	82	2.43	96	8.47	9.1
4	Christy Mathewson C. Mathewson	2.13	4788.2	636	373	188	.665	552	2,507	435	79	30	4,219	1,135	1,620	89	848	59	73		18,913	115	4.71	1.59	2.96	0.17	13.3	4.5	1.06	.268	3.04	75	2.26	76	7.93	363
5	Tommy Bond T. Bond	2.14	2547.2	294	180	101	.641	288	717	270	35	0	2,610	605	1,168	24	160		9		10,393	80	2.53	0.57	4.48	0.08	6.9	1.5	1.09		4.13	87	2.34	95	9.22	33.3
6	Orval Overall O. Overall	2.26	1535.1	218	108	71	.603	182	935	133	30	12	1,232	385	520	16	551	45	30		6,145	57	5.48	3.23	1.70	0.09	15.2	9.0	1.16	.264	3.05	81	2.39	85	7.22	72.4
7	Ed Reulbach E. Reulbach	2.29	2362.1	366	161	96	.626	270	1,020	177	36	12	1,884	601	799	30	823	104	77		9,460	41	3.89	3.14	1.24	0.11	10.8	8.7	1.15	.248	3.04	81	2.88	100	7.18	-0.6
8	Hippo Vaughn H. Vaughn	2.33	2216.1	305	151	105	.590	270	1,138	177	35	4	1,971	575	789	35	621	63	31		9,097	41	4.62	2.52	1.83	0.14	12.5	6.8	1.17	.267	3.20	79	2.56	86	8.00	96.3
9	Larry Corcoran L. Corcoran	2.36	2392.1	277	177	89	.665	268	1,103	256	22	2	2,147	626	1,235	68	496	2	9		10,001	113	4.15	1.87	2.22	0.26	11.0	5.0	1.10	.250	4.65	79	2.99	97	8.08	41
10	George McQuillan G. McQuillan	2.38	1553.1	268	85	88	.491	172	583	105	17	13	1,357	411	568	23	397	30	74		6,160	16	3.38	2.30	1.47	0.13	9.5	6.4	1.13	.260	3.29	87	2.59	93	7.86	29
11	George Bradley G. Bradley	2.39	1848.0	220	97	103	.485	204	387	187	25	2	1,904	490	1,060	28	134		16		7,780	139	1.88	0.65	2.89	0.14	5.0	1.7	1.10		5.16	93	2.58	104	9.27	-42.2
12	Lefty Leifield L. Leifield	2.42	1670.0	258	116	87	.571	201	573	129	29	7	1,499	449	619	22	507	79	42		6,715	16	3.09	2.73	1.13	0.12	8.5	7.6	1.20	.267	3.34	87	2.93	102	8.08	-6.3
13	Nap Rucker N. Rucker	2.42	2375.1	336	134	134	.500	274	1,217	186	38	14	2,089	639	823	41	701	73	58		9,441	43	4.61	2.66	1.74	0.16	12.9	7.4	1.17	.276	3.12	86	2.60	90	7.92	73.7
14	Jeff Tesreau J. Tesreau	2.43	1679.0	247	119	72	.623	207	880	123	27	9	1,350	453	591	37	572	38	25		6,805	42	4.72	3.07	1.54	0.20	12.9	8.4	1.14	.249	3.17	89	2.79	99	7.24	2.5
15	Terry Larkin T. Larkin	2.43	1567.1	176	89	80	.527	176	406	172	9	0	1,627	424	922	12	124		0		6,659	84	2.33	0.71	3.27	0.07	6.1	1.9	1.12		5.29	97	2.52	100	9.34	-7.4
16	Sam Leever S. Leever	2.47	2660.2	388	194	100	.660	299	847	241	39	13	2,449	731	1,023	29	587	88	75		10,662	46	2.87	1.99	1.44	0.10	7.9	5.5	1.14	.266	3.46	81	2.84	92	8.28	74.2
17	Hooks Wiltse H. Wiltse	2.48	2053.0	339	136	85	.615	222	948	151	27	28	1,843	565	765	53	491	38	100		8,187	40	4.16	2.15	1.93	0.23	11.6	6.0	1.14	.269	3.35	89	2.56	90	8.08	67.4
18	Jim McCormick J. McCormick	2.48	4065.2	468	244	211	.536	461	1,543	442	26	1	3,941	1,119	2,038	79	735	12	7		16,884	157	3.42	1.63	2.10	0.17	9.1	4.4	1.15	.266	4.51	88	2.91	101	8.72	-49.9
19	Joe McGinnity J. McGinnity	2.48	2860.2	392	207	112	.649	315	954	256	31	23	2,645	789	1,117	42	670	150	67		11,665	24	3.00	2.11	1.42	0.13	8.2	5.7	1.16	.264	3.51	83	2.94	95	8.32	50.9
20	Bob Ewing B. Ewing	2.49	2301.0	291	124	118	.512	264	998	205	19	4	2,097	637	940	31	614	55	27		9,157	45	3.90	2.40	1.63	0.12	10.9	6.7	1.18	.277	3.68	86	2.55	87	8.20	107.6
21	Noodles Hahn N. Hahn	2.52	1987.1	237	127	92	.580	225	900	209	24	0	1,878	556	799	27	375	49	11		7,962	28	4.08	1.70	2.40	0.12	11.3	4.7	1.13	.280	3.62	73	2.66	77	8.50	178.4
22	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
23	Grover Alexander G. Alexander	2.56	5190.0	696	373	208	.642	600	2,198	436	90	32	4,868	1,476	1,852	165	951	70	81		20,893	38	3.81	1.65	2.31	0.29	10.5	4.6	1.12	.269	3.21	73	2.88	81	8.44	359.1
24	Slim Sallee S. Sallee	2.56	2821.2	476	174	143	.549	305	836	189	25	36	2,729	804	1,092	68	573	43	123		11,476	12	2.67	1.83	1.46	0.22	7.3	5.0	1.17	.267	3.48	89	2.87	97	8.70	25.8
25	Deacon Phillippe D. Phillippe	2.59	2607.0	372	189	109	.634	289	929	242	27	12	2,518	749	1,071	41	363	59	72		10,380	45	3.21	1.25	2.56	0.14	8.9	3.5	1.11	.276	3.70	85	2.60	82	8.69	156.8