lowest single season era by a pirates pitcher

Babe Adams has the lowest ERA for the Pirates in a season, with an ERA of 1.11 in his rookie season in 1909.

Interpreted as:

lowest single season era with a minimum of 0.5 IP per team game by a pirates pitcher

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	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	1909	PIT	25	12	3	.800	12	65	7	3	2	130.0	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	Denny Driscoll D. Driscoll	1.21	1882	PIT	23	13	9	.591	23	59	23	0	0	201.0	162	27	73	0	12		0		799	7	2.64	0.54	4.92	0.00	7.4	1.5	0.87		3.27	45	2.36	84	7.25	10.2
3	Howie Camnitz H. Camnitz	1.56	1908	PIT	38	16	9	.640	26	118	17	3	2	236.2	182	41	76	6	69	5	10		942	2	4.49	2.62	1.71	0.23	12.5	7.3	1.06	.237	2.89	66	2.37	95	6.92	3.2
4	George Witt G. Witt	1.61	1958	PIT	18	9	2	.818	15	81	5	3	0	106.0	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
5	Howie Camnitz H. Camnitz	1.62	1909	PIT	41	25	6	.806	30	133	20	6	3	283.0	207	51	75	1	68	7	11		1,057	2	4.23	2.16	1.96	0.03	12.6	6.4	0.97	.243	2.39	63	2.12	81	6.58	15.9
6	Rich Gossage R. Gossage	1.62	1977	PIT	72	11	9	.550	0	151	0	0	26	133.0	78	24	27	9	49	2	55	6	523	2	10.22	3.32	3.08	0.61	28.9	9.4	0.95	.221	1.83	41	2.49	63	5.28	21.4
7	Kent Tekulve K. Tekulve	1.64	1983	PIT	76	7	5	.583	0	52	0	0	18	99.0	78	18	27	1	36	0	56	12	398	1	4.73	3.27	1.44	0.09	13.1	9.0	1.15	.249	2.45	44	2.91	79	7.09	8.7
8	Sam Leever S. Leever	1.66	1907	PIT	31	14	9	.609	24	65	17	5	0	216.2	182	40	70	3	46	8	7		848	1	2.70	1.91	1.41	0.12	7.7	5.4	1.05	.247	2.91	67	2.51	95	7.56	2.9
9	Ron Kline R. Kline	1.68	1968	PIT	56	12	5	.706	0	48	0	0	7	112.2	94	21	26	3	31	2	31	11	449	0	3.83	2.48	1.55	0.24	10.7	6.9	1.11	.249	2.08	57	2.76	99	7.51	0.4
10	Vic Willis V. Willis	1.73	1906	PIT	41	23	13	.639	36	124	32	6	1	322.0	295	62	84	0	76	5	5		1,262	8	3.47	2.12	1.63	0.00	9.8	6.0	1.15	.279	2.35	66	2.35	86	8.25	13.7
11	Rod Scurry R. Scurry	1.74	1982	PIT	76	4	5	.444	0	94	0	0	14	103.2	79	20	26	3	64	4	38	7	448	12	8.16	5.56	1.47	0.26	21.0	14.3	1.38	.269	2.26	48	3.24	90	6.86	4.2
12	Zach Duke Z. Duke	1.81	2005	PIT	14	8	2	.800	14	58	0	0	0	84.2	79	17	20	3	23	2	0	2	341	1	6.17	2.44	2.52	0.32	17.0	6.7	1.20	.298	2.13	43	2.99	72	8.40	11.2
13	Lefty Leifield L. Leifield	1.87	1906	PIT	37	18	13	.581	31	111	24	8	1	255.2	214	53	90	3	68	14	5		1,008	3	3.91	2.39	1.63	0.11	11.0	6.7	1.10	.260	3.17	71	2.61	96	7.53	3.4
14	Wilbur Cooper W. Cooper	1.87	1916	PIT	42	12	11	.522	23	111	16	2	2	246.0	189	51	72	4	74	4	14		984	3	4.06	2.71	1.50	0.15	11.3	7.5	1.07	.234	2.63	71	2.58	98	6.91	1.3
15	Roy Face R. Face	1.88	1962	PIT	63	8	7	.533	0	45	0	0	28	91.0	74	19	23	7	18	1	57	7	348	0	4.45	1.78	2.50	0.69	12.9	5.2	1.01	.242	2.27	48	3.25	86	7.32	5.5
16	Al McBean A. McBean	1.91	1964	PIT	58	8	3	.727	0	41	0	0	21	89.2	76	19	23	4	17	4	49	8	355	3	4.12	1.71	2.41	0.40	11.5	4.8	1.04	.249	2.31	54	2.97	88	7.63	4.1
17	Jesse Tannehill J. Tannehill	1.95	1902	PIT	26	20	6	.769	24	100	23	2	0	231.0	203	50	78	0	25	10	2		895	0	3.90	0.97	4.00	0.00	11.2	2.8	0.99	.267	3.04	70	2.26	77	7.91	17
18	Paul Skenes P. Skenes	1.96	2024	PIT	23	11	3	.786	23	170	0	0	0	133.0	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
19	Paul Skenes P. Skenes	1.97	2025	PIT	32	10	10	.500	32	216	1	0	0	187.2	136	41	45	11	42	6	0	0	733	2	10.36	2.01	5.14	0.53	29.5	5.7	0.95	.273	2.16	46	2.36	57	6.52	37
20	Babe Adams B. Adams	1.98	1919	PIT	34	17	10	.630	29	92	23	6	1	263.1	213	58	66	1	23	3	5		1,017	2	3.14	0.79	4.00	0.03	9.0	2.3	0.90	.236	2.26	67	2.13	72	7.28	24.9
21	Ed Doheny E. Doheny	2.00	1901	PIT	11	6	2	.750	10	28	6	1	0	76.2	68	17	36	1	22	5	1		315	4	3.29	2.58	1.27	0.12	8.9	7.0	1.17	.259	4.23	60	3.42	103	7.98	-1
22	Irv Young I. Young	2.01	1908	PIT	16	4	3	.571	7	31	3	1	1	89.2	73	20	33	1	21	5	6		350	0	3.11	2.11	1.48	0.10	8.9	6.0	1.05	.247	3.31	86	2.42	97	7.33	0.7
23	Al Mamaux A. Mamaux	2.04	1915	PTN	38	21	8	.724	30	152	17	8	0	251.2	182	57	70	3	96	9	7		1,003	2	5.44	3.43	1.58	0.11	15.2	9.6	1.10	.241	2.50	76	2.61	95	6.51	3.3
24	Patsy Flaherty P. Flaherty	2.05	1904	PIT	29	19	9	.679	28	54	28	5	0	242.0	210	55	81	3	59	11	1		974	5	2.01	2.19	0.92	0.11	5.5	6.1	1.11	.244	3.01	74	3.00	106	7.81	-3.9
25	Deacon Phillippe D. Phillippe	2.05	1902	PIT	31	20	9	.690	30	122	29	5	0	272.0	265	62	90	1	26	4	1		1,068	4	4.04	0.86	4.69	0.03	11.4	2.4	1.07	.289	2.98	74	2.15	74	8.77	23.2