All-Time MLB Player Pitching Stat Leaders by Season

PLAYER	YEAR	TEAM	W	L	ERA	G	GS	CG	SHO	SV	SVO	IP	H	R	ER	HR	HB	BB	SO	WHIP	AVG
1 GroverG AlexanderAlexander P 1 ‌ ‌ ‌	1916	PHI	33	12	1.55	48	45	38	16	3	--	389.0	323	90	67	6	10	50	167	0.96	.230
1 GeorgeG BradleyBradley P 1 ‌ ‌ ‌	1876	STL	45	19	1.23	64	64	63	16	0	--	573.0	470	229	78	3		38	103	0.89	--
3 JackJ CoombsCoombs P 3 ‌ ‌ ‌	1910	PHA	31	9	1.30	45	38	35	13	1	--	353.0	248	74	51	0	7	115	224	1.03	.201
3 BobB GibsonGibson P 3 ‌ ‌ ‌	1968	STL	22	9	1.12	34	34	28	13	0	--	304.2	198	49	38	11	7	62	268	0.85	.184
5 GroverG AlexanderAlexander P 5 ‌ ‌ ‌	1915	PHI	31	10	1.22	49	42	36	12	3	--	376.1	253	86	51	3	10	64	241	0.84	.191
5 EdE MorrisMorris P 5 ‌ ‌ ‌	1886	PIT	41	20	2.45	64	63	63	12	1	--	555.1	455	244	151	5	7	118	326	1.03	.214
5 PudP GalvinGalvin P 5 ‌ ‌ ‌	1884	BUF	46	22	1.99	72	72	71	12	0	--	636.1	566	254	141	23		63	369	0.99	--
8 TommyT BondBond P 8 ‌ ‌ ‌	1879	BSN	43	19	1.96	64	64	59	11	0	--	555.1	543	206	121	8		24	155	1.02	--
8 DeanD ChanceChance P 8 ‌ ‌ ‌	1964	LAA	20	9	1.65	46	35	15	11	4	--	278.1	194	56	51	7	2	86	207	1.01	.195
8 SandyS KoufaxKoufax P 8 ‌ ‌ ‌	1963	LA	25	5	1.88	40	40	20	11	0	--	311.0	214	68	65	18	3	58	306	0.87	.189
8 EdE WalshWalsh P 8 ‌ ‌ ‌	1908	CWS	40	15	1.42	66	49	42	11	6	--	464.0	343	111	73	2	9	56	269	0.86	.203
8 DaveD FoutzFoutz 1B 8 ‌ ‌ ‌	1886	STL	41	16	2.11	59	57	55	11	1	--	504.0	418	216	118	5	10	144	283	1.12	.216
8 Old HossO RadbournRadbourn P 8 ‌ ‌ ‌	1884	PRO	59	12	1.38	75	73	73	11	1	--	678.2	528	216	104	18		98	441	0.92	--
8 ChristyC MathewsonMathewson P 8 ‌ ‌ ‌	1908	NYG	37	11	1.43	56	44	34	11	5	--	390.2	285	86	62	5	3	42	259	0.84	.200
8 WalterW JohnsonJohnson P 8 ‌ ‌ ‌	1913	WAS	36	7	1.14	48	36	29	11	2	--	346.0	232	56	44	9	9	38	243	0.78	.187
16 JimJ McCormickMcCormick P 16 ‌ ‌ ‌	1884	CLE	40	25	2.37	66	65	63	10	0	--	569.0	508	263	150	20		89	343	1.05	--
16 DaveD DavenportDavenport P 16 ‌ ‌ ‌	1915	SLT	22	18	2.20	55	46	30	10	1	--	392.2	300	116	96	5	5	96	229	1.01	.215
16 CyC YoungYoung P 16 ‌ ‌ ‌	1904	BOS	26	16	1.97	43	41	40	10	1	--	380.0	327	104	83	6	4	29	200	0.94	.233
16 JoeJ WoodWood P 16 ‌ ‌ ‌	1912	BOS	34	5	1.91	43	38	35	10	1	--	344.0	267	104	73	2	12	82	258	1.01	.216
16 JuanJ MarichalMarichal P 16 ‌ ‌ ‌	1965	SF	22	13	2.13	39	37	24	10	1	--	295.1	224	78	70	27	4	46	240	0.91	.205
16 MortM CooperCooper P 16 ‌ ‌ ‌	1942	STL	22	7	1.78	37	35	22	10	0	--	278.2	207	73	55	9	5	68	152	0.99	.204
16 CarlC HubbellHubbell P 16 ‌ ‌ ‌	1933	NYG	23	12	1.66	45	33	22	10	5	--	308.2	256	69	57	6	3	47	156	0.98	.227
16 BobB FellerFeller P 16 ‌ ‌ ‌	1946	CLE	26	15	2.18	48	42	36	10	4	--	371.1	277	101	90	11	3	153	348	1.16	.208
16 JohnJ TudorTudor P 16 ‌ ‌ ‌	1985	STL	21	8	1.93	36	36	14	10	0	0	275.0	209	68	59	14	5	49	169	0.94	.209
16 BobB LemonLemon P 16 ‌ ‌ ‌	1948	CLE	20	14	2.82	43	37	20	10	2	--	293.2	231	104	92	12	3	129	147	1.23	.216

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