starting pitcher with most seasons with era under 3

Jack Quinn played the most seasons by a starting pitcher with an ERA better than 3.00, with 21 seasons.

	NAME	SEAS	ERA	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	H/9
1	Jack Quinn J. Quinn	21	2.85	443	192	185	.509	443	1,070	242	28	0	3215.2	3,474		1,502	85	675	79	0			41	2.99	1.89	1.59	0.24		5.3	1.29	.310	4.20	9.72
2	Tom Seaver T. Seaver	20	2.86	647	310	203	.604	647	3,634	231	61	0	4776.1	3,961	1,517	1,670	378	1,387	76	0	115	19,337	123	6.85	2.61	2.62	0.71	18.8	7.2	1.12	.258	3.15	7.46
3	Grover Alexander G. Alexander	20	2.37	600	350	193	.645	600	2,096	437	90	0	4978.1	4,654		1,742	156	887	66	0		20,045	33	3.79	1.60	2.36	0.28	10.5	4.4	1.11	.267	3.15	8.41
4	Walter Johnson W. Johnson	20	1.72	654	371	242	.605	654	3,207	520	108	0	5447.0	4,516		1,736	89	1,276	190	0		21,802	140	5.30	2.11	2.51	0.15	14.7	5.9	1.06	.260	2.87	7.46
5	Jim Palmer J. Palmer	19	2.80	521	262	148	.639	521	2,142	211	53	0	3857.0	3,256	1,202	1,334	292	1,259	37	0	36	15,714	83	5.00	2.94	1.70	0.68	13.6	8.0	1.17	.247	3.11	7.60
6	Clayton Kershaw C. Kershaw	18	2.51	436	215	94	.696	436	2,987	25	15	0	2771.1	2,120	774	849	231	688	44	0	27	10,937	105	9.70	2.23	4.34	0.75	27.3	6.3	1.01	.270	2.76	6.88
7	Pedro Martinez P. Martinez	18	2.95	409	208	97	.682	409	3,032	46	17	0	2720.0	2,151	893	979	233	705	136	0	26	10,955	60	10.03	2.33	4.30	0.77	27.7	6.4	1.05	.280	3.24	7.12
8	Rube Marquard R. Marquard	18	2.70	408	177	164	.519	408	1,428	196	30	0	2974.2	2,934		1,306	98	735	32	0		12,284	66	4.32	2.22	1.94	0.30	11.6	6.0	1.23	.284	3.95	8.88
9	Bob Gibson B. Gibson	17	2.88	482	245	170	.590	482	3,044	255	56	0	3796.1	3,199	1,216	1,376	250	1,277	99	0	107	15,669	105	7.22	3.03	2.38	0.59	19.4	8.1	1.18	.268	3.26	7.58
10	Juan Marichal J. Marichal	16	2.89	457	238	140	.630	457	2,284	244	52	0	3476.1	3,133	1,118	1,320	318	701	38	0	82	14,118	51	5.91	1.81	3.26	0.82	16.2	5.0	1.10	.261	3.42	8.11
11	Whitey Ford W. Ford	16	2.71	438	227	99	.696	438	1,857	156	45	0	3038.0	2,647	916	1,050	220	1,014	27	0	39	12,468	72	5.50	3.00	1.83	0.65	14.9	8.1	1.21	.260	3.11	7.84
12	Bill Doak B. Doak	16	2.92	369	156	145	.518	369	956	162	34	0	2595.1	2,490	843	1,088	63	771	59	0		10,774	37	3.32	2.67	1.24	0.22	8.9	7.2	1.26	.272	3.77	8.63
13	Babe Adams B. Adams	16	2.24	351	173	120	.590	351	905	204	44	0	2637.1	2,476		939	52	353	34	0		10,525	22	3.09	1.20	2.56	0.18	8.6	3.4	1.07	.264	3.20	8.45
14	Carl Mays C. Mays	15	2.86	325	177	113	.610	325	742	231	29	0	2605.2	2,507	829	1,030	64	620	76	0		10,710	27	2.56	2.14	1.20	0.22	6.9	5.8	1.20	.265	3.56	8.66
15	Don Drysdale D. Drysdale	14	2.95	465	203	160	.559	465	2,417	167	49	0	3338.1	2,999	1,095	1,260	275	821	148	0	114	13,700	79	6.52	2.21	2.94	0.74	17.6	6.0	1.14	.271	3.40	8.09
16	Stan Coveleski S. Coveleski	14	2.88	385	206	130	.613	385	928	223	38	0	2930.2	2,911		1,170	65	754	28	0		12,229	32	2.85	2.32	1.23	0.20	7.6	6.2	1.25	.272	3.59	8.94
17	Earl Hamilton E. Hamilton	13	2.55	262	102	123	.453	262	632	140	16	0	1932.2	1,896		846	35	623	60	0		8,123	38	2.94	2.90	1.01	0.16	7.8	7.7	1.30	.275	3.94	8.83
18	Slim Sallee S. Sallee	13	1.88	306	145	122	.543	306	676	191	25	0	2362.0	2,298		891	53	467	35	0		9,602	8	2.58	1.78	1.45	0.20	7.0	4.9	1.17	.268	3.40	8.76
19	Eddie Cicotte E. Cicotte	13	1.62	360	183	135	.575	360	1,225	247	35	0	2846.2	2,586		1,033	29	722	43	0		11,543	51	3.87	2.28	1.70	0.09	10.6	6.3	1.16	.268	3.27	8.18
20	Jacob deGrom J. deGrom	12	2.50	233	91	59	.607	233	1,753	4	2	0	1455.1	1,114	405	442	129	326	24	0	13	5,715	28	10.84	2.02	5.38	0.80	30.7	5.7	0.99	.283	2.73	6.89
21	Andy Messersmith A. Messersmith	12	2.92	295	125	99	.558	295	1,528	98	27	0	2133.1	1,674	692	795	168	795	39	0	37	8,751	69	6.45	3.35	1.92	0.71	17.5	9.1	1.16	.242	3.35	7.06
22	Sandy Koufax S. Koufax	12	2.71	314	159	85	.652	314	2,274	137	40	0	2202.1	1,655	663	751	194	742	17	0	46	8,959	76	9.29	3.03	3.06	0.79	25.4	8.3	1.09	.255	3.07	6.76
23	Jeff Pfeffer J. Pfeffer	12	2.75	279	144	103	.583	279	764	194	28	0	2229.0	2,128	681	835	63	543	101	0		9,216	33	3.08	2.19	1.41	0.25	8.3	5.9	1.20	.267	3.37	8.59
24	Fred Toney F. Toney	12	2.67	271	131	100	.567	271	649	157	28	0	2035.0	1,891		769	52	512	42	0		8,295	33	2.87	2.26	1.27	0.23	7.8	6.2	1.18	.261	3.40	8.36
25	Ray Caldwell R. Caldwell	12	2.64	259	121	109	.526	259	860	184	21	0	1982.0	1,876		853	52	643	55	0		8,262	25	3.91	2.92	1.34	0.24	10.4	7.8	1.27	.274	3.87	8.52