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 TimT KeefeKeefe P 1 ‌ ‌ ‌	1880	TRO	6	6	0.86	12	12	12	0	0	--	105.0	68	27	10	0		16	39	0.80	--
2 DutchD LeonardLeonard P 2 ‌ ‌ ‌	1914	BOS	19	5	0.96	36	25	17	7	3	--	224.2	139	34	24	3	8	60	176	0.89	.180
3 SatchelS PaigePaige P 3 ‌ ‌ ‌	1944	KCM	6	4	1.01	16	16	6	3	0	--	98.1	62	17	11	0	1	27	105	0.91	.179
4 MordecaiM BrownBrown P 4 ‌ ‌ ‌	1906	CHC	26	6	1.04	36	32	27	9	3	--	277.1	198	56	32	1	4	61	144	0.93	.202
5 BobB GibsonGibson P 5 ‌ ‌ ‌	1968	STL	22	9	1.12	34	34	28	13	0	--	304.2	198	49	38	11	7	62	268	0.85	.184
6 ChristyC MathewsonMathewson P 6 ‌ ‌ ‌	1909	NYG	25	6	1.14	37	33	26	8	2	--	275.1	192	57	35	2	0	36	149	0.83	.200
7 WalterW JohnsonJohnson P 7 ‌ ‌ ‌	1913	WAS	36	7	1.14	48	36	29	11	2	--	346.0	232	56	44	9	9	38	243	0.78	.187
8 JackJ PfiesterPfiester P 8 ‌ ‌ ‌	1907	CHC	14	9	1.15	30	22	13	3	0	--	195.0	143	61	25	1	5	48	90	0.98	.207
9 AddieA JossJoss P 9 ‌ ‌ ‌	1908	CLE	24	11	1.16	42	35	29	9	2	--	325.0	232	77	42	2	2	30	130	0.81	.197
10 CarlC LundgrenLundgren P 10 ‌ ‌ ‌	1907	CHC	18	7	1.17	28	25	21	7	0	--	207.0	130	42	27	0	2	92	84	1.07	.185
11 GeorgeG. WalkerWalker X 11 ‌ ‌ ‌	1940	KCM	5	1	1.21	9	4	3	3	0	--	52.0	31	7	7	2	2	7	40	0.73	.169
12 GroverG AlexanderAlexander P 12 ‌ ‌ ‌	1915	PHI	31	10	1.22	49	42	36	12	3	--	376.1	253	86	51	3	10	64	241	0.84	.191
13 GeorgeG BradleyBradley P 13 ‌ ‌ ‌	1876	STL	45	19	1.23	64	64	63	16	0	--	573.0	470	229	78	3		38	103	0.89	--
14 RoyR. ParnellParnell X 14 ‌ ‌ ‌	1932	MON	5	1	1.26	7	6	5	2	0	--	57.0	32	10	8	0	1	20	25	0.91	.615
15 CyC YoungYoung P 15 ‌ ‌ ‌	1908	BOS	21	11	1.26	36	33	30	3	2	--	299.0	230	68	42	1	1	37	150	0.89	.213
16 EdE WalshWalsh P 16 ‌ ‌ ‌	1910	CWS	18	20	1.27	45	36	33	7	5	--	369.2	242	87	52	5	4	61	258	0.82	.187
17 WalterW JohnsonJohnson P 17 ‌ ‌ ‌	1918	WAS	23	13	1.27	39	29	29	8	3	--	326.0	241	71	46	2	8	70	162	0.95	.204
18 ChristyC MathewsonMathewson P 18 ‌ ‌ ‌	1905	NYG	31	9	1.28	43	37	32	8	3	--	338.2	252	85	48	4	1	64	206	0.93	.205
19 JackJ CoombsCoombs P 19 ‌ ‌ ‌	1910	PHA	31	9	1.30	45	38	35	13	1	--	353.0	248	74	51	0	7	115	224	1.03	.201
20 MordecaiM BrownBrown P 20 ‌ ‌ ‌	1909	CHC	27	9	1.31	50	34	32	8	7	--	342.2	246	78	50	1	7	53	172	0.87	.202
21 JackJ TaylorTaylor P 21 ‌ ‌ ‌	1902	CHI	23	11	1.33	36	33	33	7	1	--	324.2	271	86	48	2	10	43	83	0.97	.227
22 WalterW JohnsonJohnson P 22 ‌ ‌ ‌	1910	WAS	25	17	1.36	45	42	38	8	1	--	370.0	262	92	56	1	13	76	313	0.91	.205
23 GeorgeG BradleyBradley P 23 ‌ ‌ ‌	1880	PRO	13	8	1.38	28	20	16	4	2	--	196.0	158	66	30	2		6	54	0.84	--
24 Old HossO RadbournRadbourn P 24 ‌ ‌ ‌	1884	PRO	59	12	1.38	75	73	73	11	1	--	678.2	528	216	104	18		98	441	0.92	--
25 WalterW JohnsonJohnson P 25 ‌ ‌ ‌	1912	WAS	33	12	1.39	50	37	34	7	2	--	369.0	259	89	57	2	16	76	303	0.91	.196

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