what pitcher recorded the lowest earned run average in the 1900s with a minimum of 1600 innings pitched

Between the 1900 and 1909 seasons, Mordecai Brown had the lowest ERA when pitching at least 1600 innings, with an ERA of 1.63.

	NAME	ERA	IP	G	W	L	W%	GS	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	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	1.63	1827.2	246	144	65	.689	195	799	170	41	19	1,443	331	517	16	356	35	49	7,000	34	3.93	1.75	2.24	0.08	11.4	5.1	0.98	.246	2.55	61	2.22	80	7.11	103.8
2	Ed Walsh E. Walsh	1.68	1642.1	234	110	63	.636	175	901	138	36	15	1,276	307	464	7	312	34	54	6,282	51	4.94	1.71	2.89	0.04	14.3	5.0	0.97	.252	2.54	70	1.83	80	6.99	74.3
3	Addie Joss A. Joss	1.87	2219.2	273	155	92	.628	248	871	225	44	5	1,792	461	695	17	346	56	22	8,479	28	3.53	1.40	2.52	0.07	10.3	4.1	0.96	.247	2.82	69	2.25	86	7.27	83.5
4	Christy Mathewson C. Mathewson	1.98	2974.2	389	236	112	.678	345	1,799	282	61	16	2,435	654	952	37	644	50	39	11,687	90	5.44	1.95	2.79	0.11	15.4	5.5	1.04	.262	2.88	71	2.12	73	7.37	248.9
5	Rube Waddell R. Waddell	2.11	2835.1	385	183	139	.568	328	2,251	251	49	3	2,343	666	1,000	32	772	105	46	11,197	72	7.15	2.45	2.92	0.10	20.1	6.9	1.10	.288	3.17	74	1.98	70	7.44	258.7
6	Cy Young C. Young	2.12	3344.0	403	230	146	.612	366	1,565	337	45	9	2,951	787	1,126	45	394	68	34	12,862	48	4.21	1.06	3.97	0.12	12.2	3.1	1.00	.269	3.03	73	2.17	75	7.94	274.6
7	Doc White D. White	2.20	2315.0	309	154	115	.572	278	1,105	215	38	2	2,022	565	806	26	499	86	27	9,157	50	4.30	1.94	2.21	0.10	12.1	5.4	1.09	.268	3.13	85	2.42	95	7.86	22.5
8	Sam Leever S. Leever	2.33	2137.2	306	166	72	.697	249	678	200	35	8	1,966	554	777	20	435	70	48	8,539	38	2.85	1.83	1.56	0.08	7.9	5.1	1.12	.265	3.27	81	2.72	92	8.28	62.6
9	Bob Ewing B. Ewing	2.37	2020.1	252	108	103	.512	228	884	184	15	4	1,831	531	805	24	513	48	24	8,011	42	3.94	2.29	1.72	0.11	11.0	6.4	1.16	.276	3.59	83	2.49	85	8.16	106.9
10	Eddie Plank E. Plank	2.42	2666.0	334	186	121	.606	314	1,342	263	36	1	2,360	716	955	26	599	140	16	10,645	57	4.53	2.02	2.24	0.09	12.6	5.6	1.11	.273	3.22	83	2.42	86	7.97	120.4
11	Jack Taylor J. Taylor	2.49	2230.1	265	129	118	.522	243	584	235	19	5	2,092	616	960	35	490	71	22	9,049	37	2.36	1.98	1.19	0.14	6.5	5.4	1.16	.261	3.87	85	3.04	102	8.44	-21.1
12	Deacon Phillippe D. Phillippe	2.50	2158.1	296	154	90	.631	243	828	204	24	7	2,071	600	842	27	288	49	47	8,565	42	3.45	1.20	2.88	0.11	9.7	3.4	1.09	.277	3.51	85	2.45	80	8.64	143.9
13	Earl Moore E. Moore	2.51	1727.1	214	104	87	.545	197	833	167	20	2	1,527	482	744	29	595	66	14	7,139	57	4.34	3.10	1.40	0.15	11.7	8.3	1.23	.267	3.88	86	2.95	101	7.96	-9.4
14	Noodles Hahn N. Hahn	2.52	1720.1	205	107	86	.554	197	772	180	21	0	1,636	482	693	24	313	42	8	6,889	25	4.04	1.64	2.47	0.13	11.2	4.5	1.13	.281	3.63	76	2.61	78	8.56	146.6
15	Vic Willis V. Willis	2.57	3130.1	398	188	172	.522	372	1,304	312	43	6	2,856	895	1,238	49	886	96	26	12,655	70	3.75	2.55	1.47	0.14	10.3	7.0	1.20	.272	3.56	89	2.81	94	8.21	58
16	Bill Donovan B. Donovan	2.57	2426.0	295	154	112	.579	273	1,293	246	31	7	2,118	694	938	21	838	71	22	9,906	51	4.80	3.11	1.54	0.08	13.1	8.5	1.22	.273	3.48	92	2.68	97	7.86	28.5
17	Jesse Tannehill J. Tannehill	2.59	1935.1	248	138	80	.633	229	738	185	25	2	1,880	557	779	32	320	95	19	7,771	20	3.43	1.49	2.31	0.15	9.5	4.1	1.14	.281	3.62	90	2.68	93	8.74	52.3
18	Harry Howell H. Howell	2.60	2337.0	309	116	138	.457	255	925	221	20	5	2,165	676	1,014	26	595	86	49	9,424	44	3.56	2.29	1.55	0.10	9.8	6.3	1.18	.275	3.91	89	2.70	97	8.34	23.8
19	Jack Chesbro J. Chesbro	2.61	2747.2	373	192	123	.610	315	1,237	245	35	5	2,482	796	1,107	36	631	102	50	10,973	57	4.05	2.07	1.96	0.12	11.3	5.8	1.13	.273	3.63	89	2.59	89	8.13	107.9
20	Bob Rhoads B. Rhoads	2.61	1691.2	218	97	82	.542	185	522	154	21	2	1,604	491	701	19	494	58	30	6,820	39	2.78	2.63	1.06	0.10	7.7	7.2	1.24	.277	3.73	99	2.88	114	8.53	-68.2
21	Joe McGinnity J. McGinnity	2.65	3075.0	417	218	126	.634	340	994	276	28	22	2,918	907	1,272	49	719	153	66	12,613	26	2.91	2.10	1.38	0.14	7.9	5.7	1.18	.268	3.72	86	2.98	95	8.54	59.4
22	George Mullin G. Mullin	2.66	2592.1	330	157	134	.540	298	1,091	258	25	6	2,434	765	1,116	19	833	78	30	10,636	67	3.79	2.89	1.31	0.07	10.3	7.8	1.26	.280	3.87	97	2.71	101	8.45	-5.9
23	Tully Sparks T. Sparks	2.69	2150.2	282	113	128	.469	249	723	194	19	8	2,036	642	945	30	542	75	30	8,716	20	3.03	2.27	1.33	0.13	8.3	6.2	1.20	.273	3.95	95	2.83	97	8.52	14.1
24	Dummy Taylor D. Taylor	2.75	1916.1	274	116	106	.523	237	767	160	21	3	1,877	585	870	38	551	72	30	7,952	47	3.60	2.59	1.39	0.18	9.6	6.9	1.27	.282	4.09	94	2.99	100	8.82	-5.8
25	Red Donahue R. Donahue	2.81	1775.0	216	110	90	.550	199	542	185	19	1	1,880	554	769	23	336	50	15	7,303	9	2.75	1.70	1.61	0.12	7.4	4.6	1.25	.292	3.90	93	2.86	95	9.53	23.4