All-Time MLB Player Pitching Stat Leaders by Season

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PLAYER	YEAR	TEAM	W	L	ERA	G	GS	CG	SHO	SV	SVO	IP	H	R	ER	HR	HB	BB	SO	WHIP	AVG
1 LeftyL GroveGrove P 1 ‌ ‌ ‌	1931	PHA	31	4	2.06	41	30	27	4	5	--	288.2	249	84	66	10	1	62	175	1.08	.229
1 JackJ CoombsCoombs P 1 ‌ ‌ ‌	1910	PHA	31	9	1.30	45	38	35	13	1	--	353.0	248	74	51	0	7	115	224	1.03	.201
3 LeftyL GroveGrove P 3 ‌ ‌ ‌	1930	PHA	28	5	2.54	50	32	22	2	9	--	291.0	273	101	82	8	5	60	209	1.14	.247
3 JackJ CoombsCoombs P 3 ‌ ‌ ‌	1911	PHA	28	12	3.53	47	40	26	1	2	--	336.2	360	166	132	8	16	119	185	1.42	.280
5 BobB WelchWelch P 5 ‌ ‌ ‌	1990	OAK	27	6	2.95	35	35	2	2	0	0	238.0	214	90	78	26	5	77	127	1.22	.242
5 RubeR WaddellWaddell P 5 ‌ ‌ ‌	1905	PHA	27	10	1.48	46	34	27	7	0	--	328.2	231	86	54	5	10	90	287	0.98	.200
5 EddieE RommelRommel P 5 ‌ ‌ ‌	1922	PHA	27	13	3.28	51	33	22	3	2	--	294.0	294	128	107	21	5	63	54	1.21	.267
8 EddieE PlankPlank P 8 ‌ ‌ ‌	1904	PHA	26	17	2.17	44	43	37	7	0	--	357.1	311	111	86	2	19	86	201	1.11	.235
8 EddieE PlankPlank P 8 ‌ ‌ ‌	1912	PHA	26	6	2.22	37	30	23	5	2	--	259.2	234	90	64	1	6	83	110	1.22	.245
10 RubeR WaddellWaddell P 10 ‌ ‌ ‌	1904	PHA	25	19	1.62	46	46	39	8	0	--	383.0	307	109	69	5	14	91	349	1.04	.221
10 LeftyL GroveGrove P 10 ‌ ‌ ‌	1932	PHA	25	10	2.84	44	30	27	4	7	--	291.2	269	101	92	13	1	79	188	1.19	.241
10 CatfishC HunterHunter P 10 ‌ ‌ ‌	1974	OAK	25	12	2.49	41	41	23	6	0	0	318.1	268	97	88	25	4	46	143	0.99	.229
13 BobbyB ShantzShantz P 13 ‌ ‌ ‌	1952	PHA	24	7	2.48	33	33	27	5	0	--	279.2	230	87	77	21	4	63	152	1.05	.225
13 VidaV BlueBlue P 13 ‌ ‌ ‌	1971	OAK	24	8	1.82	39	39	24	8	0	0	312.0	209	73	63	19	4	88	301	0.95	.189
13 LeftyL GroveGrove P 13 ‌ ‌ ‌	1928	PHA	24	8	2.58	39	31	24	4	4	--	261.2	228	93	75	10	1	64	183	1.12	.229
13 RubeR WaddellWaddell P 13 ‌ ‌ ‌	1902	PHA	24	7	2.05	33	27	26	3	0	--	276.1	224	90	63	7	10	64	210	1.04	.222
13 EddieE PlankPlank P 13 ‌ ‌ ‌	1905	PHA	24	12	2.26	41	41	35	4	0	--	346.2	287	113	87	3	24	75	210	1.04	.227
13 GeorgeG EarnshawEarnshaw P 13 ‌ ‌ ‌	1929	PHA	24	8	3.25	44	33	13	3	1	--	254.2	233	109	92	8	5	125	149	1.41	.241
13 LeftyL GroveGrove P 13 ‌ ‌ ‌	1933	PHA	24	8	3.20	45	28	21	2	6	--	275.1	280	113	98	12	4	83	114	1.32	.261
13 EddieE PlankPlank P 13 ‌ ‌ ‌	1907	PHA	24	16	2.20	43	40	33	8	0	--	343.2	282	115	84	5	17	85	183	1.07	.226
21 BarryB ZitoZito P 21 ‌ ‌ ‌	2002	OAK	23	5	2.75	35	35	1	0	0	0	229.1	182	79	70	24	9	78	182	1.13	.218
21 ChiefC BenderBender P 21 ‌ ‌ ‌	1910	PHA	23	5	1.58	30	28	25	3	0	--	250.0	182	63	44	1	10	47	155	0.92	.207
21 EddieE PlankPlank P 21 ‌ ‌ ‌	1903	PHA	23	16	2.38	43	40	33	3	0	--	336.0	317	128	89	5	23	65	176	1.14	.249
21 EddieE PlankPlank P 21 ‌ ‌ ‌	1911	PHA	23	8	2.10	40	30	24	6	4	--	256.2	237	85	60	2	14	77	149	1.22	.255
25 MikeM NorrisNorris P 25 ‌ ‌ ‌	1980	OAK	22	9	2.53	33	33	24	1	0	0	284.1	215	88	80	18	6	83	180	1.05	.209

Data validation provided by Elias Sports Bureau, the Official Statistician of Major League Baseball