lowest era by a rookie pitcher in a season since 1900 with minimum of 100 innings pitched

Since 1900, Babe Adams has the best ERA by a rookie with 100.0+ innings pitched, with an ERA of 1.11 in 1909.

	NAME	ERA	IP	SEASON	TM	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	Babe Adams B. Adams	1.11	130.0	1909	PIT	25	12	3	.800	12	65	7	3	2	88	16	25	0	23	3	11		475	1	4.50	1.59	2.83	0.00	13.7	4.8	0.85	.229	1.73	43	1.82	69	6.09	11.7
2	Harry Krause H. Krause	1.39	213.0	1909	PHA	32	18	8	.692	21	139	16	7	0	151	33	49	2	49	13	8		801	2	5.87	2.07	2.84	0.08	17.4	6.1	0.94	.249	2.07	58	1.91	82	6.38	9.5
3	Ed Reulbach E. Reulbach	1.42	291.2	1905	CHC	34	18	14	.563	29	152	28	5	1	208	46	71	1	73	18	5		1,124	5	4.69	2.25	2.08	0.03	13.5	6.5	0.96	.235	2.19	48	2.46	85	6.42	14
4	Jack Pfiester J. Pfiester	1.51	250.2	1906	CHC	31	20	8	.714	29	153	20	4	0	173	42	63	3	63	13	2		966	4	5.49	2.26	2.43	0.11	15.8	6.5	0.94	.232	2.26	57	2.21	80	6.21	15.4
5	Bob Lee B. Lee	1.51	137.0	1964	LAA	64	6	5	.545	5	111	0	0	19	87	23	31	6	58	1	39	8	545	3	7.29	3.81	1.91	0.39	20.4	10.6	1.06	.220	2.04	44	2.85	79	5.72	11.4
6	George McQuillan G. McQuillan	1.53	359.2	1908	PHN	48	23	17	.575	42	114	32	7	2	263	61	88	1	91	6	6		1,367	5	2.85	2.28	1.25	0.03	8.3	6.7	0.98	.227	2.20	66	2.31	95	6.58	4.5
7	Steve Rogers S. Rogers	1.54	134.0	1973	MON	17	10	5	.667	17	64	7	3	0	93	23	28	5	49	1	0	3	527	3	4.30	3.29	1.31	0.34	12.1	9.3	1.06	.216	1.88	41	3.21	84	6.25	9.1
8	George Witt G. Witt	1.61	106.0	1958	PIT	18	9	2	.818	15	81	5	3	0	78	19	22	2	59	2	0	3	442	5	6.88	5.01	1.37	0.17	18.3	13.3	1.29	.255	1.87	42	2.92	76	6.62	11
9	Ed Summers E. Summers	1.64	301.0	1908	DET	40	24	12	.667	32	103	23	5	1	271	55	112	3	55	20	8		1,195	5	3.08	1.64	1.87	0.09	8.6	4.6	1.08	.264	3.35	66	2.29	99	8.10	2.4
10	Russ Ford R. Ford	1.65	299.2	1910	NYH	36	26	6	.813	33	209	29	8	1	194	55	69	4	70	8	3		1,112	5	6.28	2.10	2.99	0.12	18.8	6.3	0.88	.231	2.07	63	1.88	69	5.83	28.3
11	Frank Lange F. Lange	1.65	130.2	1910	CWS	23	9	4	.692	15	98	6	1	0	93	24	48	2	54	9	7		519	3	6.75	3.72	1.81	0.14	18.9	10.4	1.13	.256	3.31	68	2.47	99	6.41	-0.4
12	Otto Hess O. Hess	1.67	151.1	1904	CLE	21	8	7	.533	16	64	15	4	0	134	28	60	2	31	5	5		598	5	3.81	1.84	2.06	0.12	10.7	5.2	1.09	.266	3.57	65	2.46	99	7.97	0.3
13	Bill Burns B. Burns	1.70	164.0	1908	WSH	23	6	11	.353	19	55	11	2	0	135	31	58	3	18	4	1		612	1	3.02	0.99	3.06	0.16	9.0	2.9	0.93	.248	3.18	74	2.07	96	7.41	0.7
14	Mark Eichhorn M. Eichhorn	1.72	157.0	1986	TOR	69	14	6	.700	0	166	0	0	10	105	30	32	8	45	7	38	14	612	2	9.52	2.58	3.69	0.46	27.1	7.4	0.96	.251	1.83	41	2.30	56	6.02	31.8
15	Rube Bressler R. Bressler	1.77	147.2	1914	PHA	29	10	4	.714	10	96	8	1	2	112	29	37	1	56	4	15		569	3	5.85	3.41	1.71	0.06	16.9	9.8	1.14	.269	2.26	65	2.44	87	6.83	5.8
16	Cal Eldred C. Eldred	1.79	100.1	1992	MIL	14	11	2	.846	14	62	2	1	0	76	20	21	4	23	2	0	0	394	3	5.56	2.06	2.70	0.36	15.7	5.8	0.99	.238	1.88	46	2.81	72	6.82	12.2
17	Vean Gregg V. Gregg	1.80	244.2	1911	CLE	34	23	7	.767	26	125	22	5	0	172	49	67	2	86	10	8		937	8	4.60	3.16	1.45	0.07	13.3	9.2	1.05	.238	2.46	53	3.03	93	6.33	6.7
18	King Cole K. Cole	1.80	239.2	1910	CHC	33	20	4	.833	29	114	21	4	1	174	48	64	2	130	9	2		962	9	4.28	4.88	0.88	0.08	11.9	13.5	1.27	.243	2.40	60	3.22	110	6.53	-8.3
19	Tom McCarthy T. McCarthy	1.82	103.2	1908	TOT	17	7	4	.636	13	31	7	2	0	86	21	30	0	37	1	3		402	1	2.69	3.21	0.84	0.00	7.7	9.2	1.19	.258	2.60	75	2.60	101	7.47	0.2
20	Hippo Vaughn H. Vaughn	1.83	221.2	1910	NYH	30	13	11	.542	25	107	18	5	1	190	45	76	1	58	10	3		869	7	4.34	2.35	1.84	0.04	12.3	6.7	1.12	.273	3.09	69	2.34	86	7.71	10.3
21	Elmer Steele E. Steele	1.83	118.0	1908	BOS	16	5	7	.417	13	37	9	1	0	85	24	34	1	13	3	2		423	0	2.82	0.99	2.85	0.08	8.7	3.1	0.83	.228	2.59	75	1.99	87	6.48	4
22	Walter Johnson W. Johnson	1.88	110.1	1907	WSH	14	5	9	.357	12	71	11	2	0	100	23	35	1	20	2	2		432	4	5.79	1.63	3.55	0.08	16.4	4.6	1.09	.293	2.85	76	1.61	70	8.16	8.4
23	Mellie Wolfgang M. Wolfgang	1.89	119.1	1914	CWS	24	9	5	.643	11	50	9	2	0	96	25	42	0	32	0	12		470	1	3.77	2.41	1.56	0.00	10.6	6.8	1.07	.247	3.17	70	2.40	86	7.24	5.2
24	Reb Russell R. Russell	1.90	316.2	1913	CWS	52	22	16	.579	36	122	26	8	4	250	67	89	2	79	7	10		1,221	6	3.47	2.25	1.54	0.06	10.0	6.5	1.04	.245	2.53	67	2.68	92	7.11	7.1
25	Dave Smith D. Smith	1.93	102.2	1980	HOU	57	7	5	.583	0	85	0	0	10	90	22	24	1	32	4	35	7	422	3	7.45	2.81	2.66	0.09	20.1	7.6	1.19	.297	2.10	57	2.27	65	7.89	14