lowest era by a rookie pitcher since 1920 minimum 100 ip

Since 1920, Bob Lee has the lowest ERA by a rookie with 100.0+ innings pitched, with an ERA of 1.51 in 1964.

	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	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
2	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
3	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
4	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
5	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
6	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
7	Joe Berry J. Berry	1.94	111.1	1944	PHA	53	10	8	.556	0	44	0	0	12	78	24	32	4	23	2	47		445	1	3.56	1.86	1.91	0.32	9.9	5.2	0.91	.199	2.59	56	2.89	84	6.31	7
8	Bob Reynolds B. Reynolds	1.95	111.0	1973	BAL	42	7	5	.583	1	77	0	0	9	88	24	27	3	31	0	28	6	443	3	6.24	2.51	2.48	0.24	17.4	7.0	1.07	.256	2.19	53	2.36	64	7.14	16.7
9	Chuck McElroy C. McElroy	1.95	101.1	1991	CHC	71	6	2	.750	0	92	0	0	3	73	22	33	7	57	0	12	7	419	1	8.17	5.06	1.61	0.62	22.0	13.6	1.28	.251	2.93	51	3.62	94	6.48	2.7
10	Paul Skenes P. Skenes	1.96	133.0	2024	PIT	23	11	3	.786	23	170	0	0	0	94	29	31	10	32	6	0	0	514	2	11.50	2.17	5.31	0.68	33.1	6.2	0.95	.284	2.10	47	2.44	60	6.36	23.9
11	Doug Corbett D. Corbett	1.98	136.1	1980	MIN	73	8	6	.571	0	89	0	0	23	102	30	31	7	42	1	63	8	531	3	5.88	2.77	2.12	0.46	16.8	7.9	1.06	.242	2.05	48	3.05	76	6.73	14.8
12	Bob Welch B. Welch	2.02	111.1	1978	LAD	23	7	4	.636	13	66	4	3	3	92	25	28	6	26	1	6	2	439	2	5.34	2.10	2.54	0.49	15.0	5.9	1.06	.253	2.26	58	2.82	79	7.44	9.3
13	Luis DeLeon L. DeLeon	2.03	102.0	1982	SDP	61	9	5	.643	0	60	0	0	15	77	23	25	10	16	1	41	9	390	0	5.29	1.41	3.75	0.88	15.4	4.1	0.91	.221	2.21	59	3.31	94	6.79	2.5
14	Dave Righetti D. Righetti	2.05	105.1	1981	NYY	15	8	4	.667	15	89	2	0	0	75	24	25	1	38	0	0	0	422	1	7.60	3.25	2.34	0.09	21.1	9.0	1.07	.252	2.14	58	2.11	58	6.41	18.2
15	Stan Bahnsen S. Bahnsen	2.05	267.1	1968	NYY	37	17	12	.586	34	162	10	1	0	216	61	72	14	68	2	3	6	1,070	4	5.45	2.29	2.38	0.47	15.1	6.4	1.06	.245	2.42	73	2.64	88	7.27	10.1
16	Jim Nash J. Nash	2.06	127.0	1966	KCA	18	12	1	.923	17	98	5	0	1	95	29	32	6	47	0	1	3	516	4	6.94	3.33	2.09	0.43	19.0	9.1	1.12	.244	2.27	59	2.74	75	6.73	12.4
17	Jerry Koosman J. Koosman	2.08	263.2	1968	NYM	35	19	12	.613	34	178	17	7	0	221	61	72	16	69	8	0	7	1,058	8	6.08	2.36	2.58	0.55	16.8	6.5	1.10	.260	2.46	70	2.70	96	7.54	3.7
18	Todd Worrell T. Worrell	2.08	103.2	1986	STL	74	9	10	.474	0	73	0	0	36	86	24	29	9	41	1	60	16	430	1	6.34	3.56	1.78	0.78	17.0	9.5	1.23	.252	2.52	57	3.70	102	7.47	-1
19	Johnny Beazley J. Beazley	2.13	215.1	1942	SLN	43	21	6	.778	23	91	13	3	3	181	51	67	4	73	3	15		890	7	3.80	3.05	1.25	0.17	10.2	8.2	1.18	.246	2.80	63	2.87	82	7.57	15.3
20	Joe Black J. Black	2.15	142.1	1952	BKN	56	15	4	.789	2	85	1	0	15	102	34	40	9	41	1	41		560	0	5.37	2.59	2.07	0.57	15.2	7.3	1.00	.219	2.53	57	2.90	78	6.45	13.2
21	Francisco Liriano F. Liriano	2.16	121.0	2006	MIN	28	12	3	.800	16	144	0	0	1	89	29	31	9	32	1	2	0	473	9	10.71	2.38	4.50	0.67	30.4	6.8	1.00	.279	2.31	48	2.54	58	6.62	25.3
22	Chris Devenski C. Devenski	2.16	108.1	2016	HOU	48	4	4	.500	5	104	0	0	1	79	26	26	4	20	3	16	0	408	2	8.64	1.66	5.20	0.33	25.5	4.9	0.91	.271	2.16	54	2.33	56	6.56	22.6
23	Jose Fernandez J. Fernandez	2.19	172.2	2013	MIA	28	12	6	.667	28	187	0	0	0	111	42	47	10	58	5	0	5	681	3	9.75	3.02	3.22	0.52	27.5	8.5	0.98	.240	2.45	60	2.72	75	5.79	18.1
24	Dick Radatz D. Radatz	2.24	124.2	1962	BOS	62	9	6	.600	0	144	0	0	24	95	31	32	9	40	4	53	2	506	4	10.40	2.89	3.60	0.65	28.5	7.9	1.08	.278	2.31	54	2.30	54	6.86	26
25	Doug Sisk D. Sisk	2.24	104.1	1983	NYM	67	5	4	.556	0	33	0	0	11	88	26	38	1	59	4	39	7	447	5	2.85	5.09	0.56	0.09	7.4	13.2	1.41	.249	3.28	62	4.05	111	7.59	-5