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 DutchD LeonardLeonard P 1 ‌ ‌ ‌	1914	BOS	19	5	0.96	36	25	17	7	3	--	224.2	139	34	24	3	8	60	176	0.89	.180
2 WalterW JohnsonJohnson P 2 ‌ ‌ ‌	1913	WAS	36	7	1.14	48	36	29	11	2	--	346.0	232	56	44	9	9	38	243	0.78	.187
3 AddieA JossJoss P 3 ‌ ‌ ‌	1908	CLE	24	11	1.16	42	35	29	9	2	--	325.0	232	77	42	2	2	30	130	0.81	.197
4 CyC YoungYoung P 4 ‌ ‌ ‌	1908	BOS	21	11	1.26	36	33	30	3	2	--	299.0	230	68	42	1	1	37	150	0.89	.213
5 EdE WalshWalsh P 5 ‌ ‌ ‌	1910	CWS	18	20	1.27	45	36	33	7	5	--	369.2	242	87	52	5	4	61	258	0.82	.187
6 WalterW JohnsonJohnson P 6 ‌ ‌ ‌	1918	WAS	23	13	1.27	39	29	29	8	3	--	326.0	241	71	46	2	8	70	162	0.95	.204
7 JackJ CoombsCoombs P 7 ‌ ‌ ‌	1910	PHA	31	9	1.30	45	38	35	13	1	--	353.0	248	74	51	0	7	115	224	1.03	.201
8 WalterW JohnsonJohnson P 8 ‌ ‌ ‌	1910	WAS	25	17	1.36	45	42	38	8	1	--	370.0	262	92	56	1	13	76	313	0.91	.205
9 WalterW JohnsonJohnson P 9 ‌ ‌ ‌	1912	WAS	33	12	1.39	50	37	34	7	2	--	369.0	259	89	57	2	16	76	303	0.91	.196
10 HarryH KrauseKrause P 10 ‌ ‌ ‌	1909	PHA	18	8	1.39	32	21	16	7	0	--	213.0	151	49	33	2	13	49	139	0.94	.204
11 EdE WalshWalsh P 11 ‌ ‌ ‌	1909	CWS	15	11	1.41	31	28	20	8	2	--	230.1	166	52	36	0	4	50	127	0.94	.203
12 EdE WalshWalsh P 12 ‌ ‌ ‌	1908	CWS	40	15	1.42	66	49	42	11	6	--	464.0	343	111	73	2	9	56	269	0.86	.203
13 RubeR WaddellWaddell P 13 ‌ ‌ ‌	1905	PHA	27	10	1.48	46	34	27	7	0	--	328.2	231	86	54	5	10	90	287	0.98	.200
14 JoeJ WoodWood P 14 ‌ ‌ ‌	1915	BOS	15	5	1.49	25	16	10	3	2	--	157.1	120	32	26	1	1	44	63	1.04	.216
15 WalterW JohnsonJohnson P 15 ‌ ‌ ‌	1919	WAS	20	14	1.49	39	29	27	7	2	--	290.1	235	73	48	0	7	51	147	0.99	.219
16 DocD WhiteWhite P 16 ‌ ‌ ‌	1906	CWS	18	6	1.52	28	24	20	7	0	--	219.1	160	47	37	2	5	38	95	0.90	.207
17 EddieE CicotteCicotte P 17 ‌ ‌ ‌	1917	CWS	28	12	1.53	49	35	29	7	4	--	346.2	246	76	59	2	3	70	150	0.91	.203
18 CyC MorganMorgan P 18 ‌ ‌ ‌	1910	PHA	18	12	1.55	36	34	23	3	0	--	290.2	214	92	50	0	18	117	134	1.14	.216
19 WalterW JohnsonJohnson P 19 ‌ ‌ ‌	1915	WAS	27	13	1.55	47	39	35	7	4	--	336.2	258	83	58	1	19	56	203	0.93	.214
20 EddieE CicotteCicotte P 20 ‌ ‌ ‌	1913	CWS	18	11	1.58	41	30	18	3	1	--	268.0	224	77	47	2	3	73	121	1.11	.226
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
22 BarneyB PeltyPelty P 22 ‌ ‌ ‌	1906	SLB	16	11	1.59	34	30	25	4	2	--	260.2	189	77	46	1	18	59	92	0.95	.206
23 AddieA JossJoss P 23 ‌ ‌ ‌	1904	CLE	14	10	1.59	25	24	20	5	0	--	192.1	160	51	34	0	7	30	83	0.99	.227
24 EdE WalshWalsh P 24 ‌ ‌ ‌	1907	CWS	24	18	1.60	56	46	37	5	4	--	422.1	341	120	75	3	8	87	206	1.01	.223
25 LuisL TiantTiant P 25 ‌ ‌ ‌	1968	CLE	21	9	1.60	34	32	19	9	0	--	258.1	152	53	46	16	4	73	264	0.87	.168

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