lowest era- in a season by a pitcher over 42 years old

Jack Quinn has the lowest ERA- by a pitcher older than 42 in a season, with an ERA- of 71 in 1928.

Interpreted as:

lowest era- with a minimum of 1 IP per team game in a season by a pitcher over 42 years old

	NAME	ERA-	AGE	SEASON	TM	G	W	L	W%	GS	ERA	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	FIP	FIP-	H/9	PRAA
1	Jack Quinn J. Quinn	71	45	1928	PHA	31	18	7	.720	28	2.90	43	18	4	1	211.1	239	68	92	3	34	7	2		898	0	1.83	1.45	1.26	0.13	4.8	3.8	1.29	.291	3.92	3.27	83	10.18	16.1
2	Nolan Ryan N. Ryan	72	44	1991	TEX	27	12	6	.667	27	2.91	203	2	2	0	173.0	102	56	58	12	72	5	0	0	683	8	10.56	3.75	2.82	0.62	29.7	10.5	1.01	.230	3.02	2.74	68	5.31	24.4
3	Jack Quinn J. Quinn	77	44	1927	PHA	34	15	10	.600	26	3.26	43	11	3	1	201.1	211	73	82	9	37	4	4		825	1	1.92	1.65	1.16	0.40	5.2	4.5	1.23	.276	3.67	3.79	91	9.43	8.9
4	Phil Niekro P. Niekro	80	45	1984	NYY	32	16	8	.667	31	3.09	136	5	1	0	215.2	219	74	85	15	76	3	1	0	916	2	5.68	3.17	1.79	0.63	14.8	8.3	1.37	.297	3.55	3.50	89	9.14	10.3
5	Jack Quinn J. Quinn	84	43	1926	PHA	31	10	11	.476	21	3.41	58	8	3	1	163.2	191	62	74	4	36	1	5		706	4	3.19	1.98	1.61	0.22	8.2	5.1	1.39	.308	4.07	3.20	79	10.50	15.4
6	Jamie Moyer J. Moyer	86	45	2008	PHI	33	16	7	.696	33	3.71	123	0	0	0	196.1	199	81	85	20	62	11	0	4	841	3	5.64	2.84	1.98	0.92	14.6	7.4	1.33	.286	3.90	4.31	99	9.12	1.1
7	Randy Johnson R. Johnson	87	44	2008	ARI	30	11	10	.524	30	3.91	173	2	0	0	184.0	184	80	92	24	44	6	0	6	778	2	8.46	2.15	3.93	1.17	22.2	5.7	1.24	.301	4.50	3.75	85	9.00	13.1
8	Bartolo Colon B. Colon	88	43	2016	NYM	34	15	8	.652	33	3.43	128	0	0	0	191.2	200	73	81	24	32	3	0	2	791	0	6.01	1.50	4.00	1.13	16.2	4.0	1.21	.291	3.80	3.98	98	9.39	1.2
9	Nolan Ryan N. Ryan	88	43	1990	TEX	30	13	9	.591	30	3.44	232	5	2	0	204.0	137	78	86	18	74	7	0	2	818	9	10.24	3.26	3.14	0.79	28.4	9.0	1.03	.244	3.79	2.86	73	6.04	23.7
10	Tommy John T. John	91	44	1987	NYY	33	13	6	.684	33	4.03	63	3	1	0	187.2	212	84	95	12	47	6	0	7	802	9	3.02	2.25	1.34	0.58	7.9	5.9	1.38	.297	4.56	3.87	87	10.17	12.3
11	Jack Quinn J. Quinn	94	46	1929	PHA	35	11	9	.550	18	3.97	41	7	0	2	161.0	182	71	87	8	39	1	9		687	3	2.29	2.18	1.05	0.45	6.0	5.7	1.37	.291	4.86	4.04	92	10.17	6.1
12	Phil Niekro P. Niekro	96	43	1982	ATL	35	17	4	.810	35	3.61	144	4	2	0	234.1	225	94	106	23	73	3	0	1	969	4	5.53	2.80	1.97	0.88	14.9	7.5	1.27	.278	4.07	3.73	99	8.64	1
13	Jamie Moyer J. Moyer	97	43	2006	TOT	33	11	14	.440	33	4.30	108	2	1	0	211.1	228	101	110	33	51	5	0	5	894	3	4.60	2.17	2.12	1.41	12.1	5.7	1.32	.280	4.68	4.94	110	9.71	-11.1
14	Cy Young C. Young	99	43	1910	CLE	21	7	10	.412	20	2.53	58	14	1	0	163.1	149	46	62	0	27	4	0		623	7	3.20	1.49	2.15	0.00	9.3	4.3	1.08	.279	3.42	2.18	83	8.21	8.6
15	Charlie Hough C. Hough	101	43	1991	CWS	31	9	10	.474	29	4.02	107	4	1	0	199.1	167	89	98	21	94	11	1	0	858	5	4.83	4.24	1.14	0.95	12.5	11.0	1.31	.234	4.42	4.73	118	7.54	-16.3
16	Phil Niekro P. Niekro	102	46	1985	NYY	33	16	12	.571	33	4.09	149	7	1	0	220.0	203	100	110	29	120	2	0	1	955	5	6.10	4.91	1.24	1.19	15.6	12.6	1.47	.266	4.50	4.70	116	8.30	-16.3
17	Phil Niekro P. Niekro	102	47	1986	CLE	34	11	11	.500	32	4.32	81	5	0	0	210.1	241	101	126	24	95	6	1	1	951	9	3.47	4.06	0.85	1.03	8.5	10.0	1.60	.291	5.39	4.91	118	10.31	-17.8
18	Charlie Hough C. Hough	103	44	1992	CWS	27	7	12	.368	27	3.93	76	4	0	0	176.1	160	77	88	19	66	7	0	2	751	10	3.88	3.37	1.15	0.97	10.1	8.8	1.28	.242	4.49	4.56	117	8.17	-13.2
19	Phil Niekro P. Niekro	103	44	1983	ATL	34	11	10	.524	33	3.97	128	2	0	0	201.2	212	89	94	18	105	2	0	3	888	6	5.71	4.69	1.22	0.80	14.4	11.8	1.57	.306	4.20	4.22	109	9.46	-6.6
20	Gaylord Perry G. Perry	105	43	1982	SEA	32	10	12	.455	32	4.40	116	6	0	0	216.2	245	106	117	27	54	4	0	4	923	13	4.82	2.24	2.15	1.12	12.6	5.9	1.38	.302	4.86	4.06	94	10.18	6.2
21	Charlie Hough C. Hough	107	45	1993	FLA	34	9	16	.360	34	4.27	126	0	0	0	204.1	202	97	109	20	71	8	0	2	876	11	5.55	3.13	1.77	0.88	14.4	8.1	1.34	.280	4.80	4.18	103	8.90	-2.9
22	Jamie Moyer J. Moyer	110	44	2007	PHI	33	14	12	.538	33	5.01	133	1	0	0	199.1	222	111	118	30	66	5	0	3	867	2	6.01	2.98	2.02	1.35	15.3	7.6	1.44	.303	5.33	4.92	107	10.02	-7.3
23	Tommy John T. John	113	45	1988	NYY	35	9	8	.529	32	4.49	81	0	0	0	176.1	221	88	96	11	46	6	2	4	776	5	4.13	2.35	1.76	0.56	10.4	5.9	1.51	.332	4.90	3.54	90	11.28	7.4
24	Gaylord Perry G. Perry	114	44	1983	TOT	30	7	14	.333	30	4.64	82	3	1	0	186.1	214	96	108	24	49	4	0	4	811	5	3.96	2.37	1.67	1.16	10.1	6.0	1.41	.291	5.22	4.39	108	10.34	-6.6
25	Warren Spahn W. Spahn	114	44	1965	TOT	36	7	16	.304	30	4.01	90	8	0	0	197.2	210	88	104	26	56	3	3	2	846	2	4.10	2.55	1.61	1.18	10.6	6.6	1.35	.274	4.74	4.21	124	9.56	-18.1