single season ip leaders with a minimum of 1.2 pa per team game since 1914

Since 1914, Walter Johnson has pitched the most innings when he has had 1.2 or more (PA/TM GMS) in a season, with 326 innings in 1918.

	NAME	IP	PA	TM GMS	PA/TM GMS	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Walter Johnson W. Johnson	326.0	166	130	1.28	1918	WSH	39	23	13	.639	29	1.27	162	29	8	3	241	46	71	2	70	8	10		1,261	8	4.47	1.93	2.31	0.06	12.8	5.6	0.95	.235	1.96	47	2.04	74	6.65	25.9
2	Doc Crandall D. Crandall	196.0	341	154	2.21	1914	SLF	27	13	9	.591	21	3.54	84	18	1	0	194	77	94	8	52	2	5		812	1	3.86	2.39	1.62	0.37	10.3	6.4	1.26	.279	4.32	107	2.94	97	8.91	2.3
3	Ray Caldwell R. Caldwell	176.2	169	126	1.34	1918	NYY	24	9	8	.529	21	3.06	59	14	1	1	173	60	69	2	62	1	3		741	1	3.01	3.16	0.95	0.10	8.0	8.4	1.33	.277	3.52	109	2.78	97	8.81	1.9
4	Babe Ruth B. Ruth	166.1	380	126	3.02	1918	BSA	20	13	7	.650	19	2.22	40	18	1	0	125	41	51	1	49	2	0		660	3	2.16	2.65	0.82	0.05	6.1	7.4	1.05	.218	2.76	84	2.75	102	6.76	-1.8
5	Shohei Ohtani S. Ohtani	166.0	666	162	4.11	2022	LAA	28	15	9	.625	28	2.33	219	0	0	0	124	43	45	14	44	2	0	0	660	14	11.87	2.39	4.98	0.76	33.2	6.7	1.01	.289	2.44	59	2.40	60	6.72	29.5
6	Babe Ruth B. Ruth	133.1	542	138	3.93	1919	BSA	17	9	5	.643	15	2.97	30	12	0	1	148	44	59	2	58	2	2		570	5	2.03	3.91	0.52	0.14	5.3	10.2	1.55	.305	3.98	96	3.58	118	9.99	-8.8
7	Shohei Ohtani S. Ohtani	132.0	594	162	3.67	2023	LAA	23	10	5	.667	23	3.14	167	1	1	0	85	46	50	18	55	11	0	0	531	12	11.39	3.75	3.04	1.23	31.5	10.4	1.06	.239	3.41	72	3.99	91	5.80	6.1
8	Shohei Ohtani S. Ohtani	130.1	639	162	3.94	2021	LAA	23	9	2	.818	23	3.18	156	0	0	0	98	46	48	15	44	10	0	2	533	10	10.77	3.04	3.55	1.04	29.3	8.3	1.09	.269	3.31	72	3.51	80	6.77	12.2
9	Ossie Orwoll O. Orwoll	106.0	191	153	1.25	1928	PHA	27	6	5	.545	8	4.58	53	3	0	2	110	54	59	7	50	2	15		473	3	4.50	4.25	1.06	0.59	11.2	10.6	1.51	.285	5.01	112	4.24	107	9.34	-3.2
10	George Sisler G. Sisler	70.0	295	159	1.86	1915	SLA	15	4	4	.500	8	2.83	41	6	0	0	62	22	26	0	38	4	3		293	1	5.27	4.89	1.08	0.00	14.0	13.0	1.43	.295	3.34	99	3.04	106	7.97	-1.5
11	Earl Naylor E. Naylor	60.1	182	151	1.21	1942	PHN	20	0	5	.000	4	6.12	19	1	0	0	68	41	43	5	29	0	12		272	2	2.83	4.33	0.66	0.75	7.0	10.7	1.61	.288	6.41	186	4.31	126	10.14	-6.1
12	Shohei Ohtani S. Ohtani	51.2	366	162	2.26	2018	LAA	10	4	2	.667	10	3.31	63	0	0	0	38	19	19	6	22	1	0	0	211	5	10.97	3.83	2.86	1.05	29.9	10.4	1.16	.269	3.31	78	3.56	83	6.62	4.1
13	Rene Monteagudo R. Monteagudo	45.2	225	154	1.46	1945	PHN	14	0	0		0	7.49	16	0	0	0	67	38	42	1	28	2	7		232	1	3.15	5.52	0.57	0.20	6.9	12.1	2.08	.357	8.28	199	4.09	112	13.20	-2.2
14	Rube Bressler R. Bressler	41.2	197	140	1.41	1919	CIN	13	2	4	.333	4	3.46	13	1	0	0	37	16	19	1	8	0	7		163	1	2.81	1.73	1.63	0.22	8.0	4.9	1.08	.255	4.10	124	2.75	97	7.99	0.3
15	Willie Smith W. Smith	31.2	373	162	2.3	1964	LAA	15	1	4	.200	1	2.84	20	0	0	0	34	10	13	5	10	1	3	1	134	2	5.68	2.84	2.00	1.42	14.9	7.5	1.39	.296	3.69	83	4.44	124	9.66	-3.3
16	Jack Bentley J. Bentley	27.1	256	152	1.68	1926	TOT	8	0	2	.000	3	7.57	8	0	0	0	37	23	28	2	12	0	4		133	0	2.63	3.95	0.67	0.66	6.0	9.0	1.79	.315	9.22	182	4.60	111	12.18	-1.1
17	George Sisler G. Sisler	27.0	644	158	4.08	1916	SLA	3	1	2	.333	3	1.00	12	3	1	0	18	3	4	0	6	1	0		98	0	4.00	2.00	2.00	0.00	12.2	6.1	0.89	.228	1.33	36	2.20	80	6.00	1.6
18	Eddie Eayrs E. Eayrs	26.1	284	153	1.86	1920	BSN	7	1	2	.333	3	5.47	7	0	0	0	36	16	18	1	12	2	3		121	0	2.39	4.10	0.58	0.34	5.8	9.9	1.82	.354	6.15	182	4.31	137	12.30	-3.6
19	Kerby Farrell K. Farrell	23.0	303	153	1.98	1943	BSN	5	0	1	.000	0	4.30	4	0	0	0	24	11	11	1	9	0	4		97	2	1.57	3.52	0.44	0.39	4.1	9.3	1.43	.277	4.30	126	3.81	114	9.39	-1.1
20	Charlie Jamieson C. Jamieson	23.0	473	130	3.64	1918	PHA	5	2	1	.667	2	4.30	2	1	0	0	24	11	17	0	13	2	3		109	1	0.78	5.09	0.15	0.00	1.8	11.9	1.61	.261	6.65	152	4.01	139	9.39	-2.8
21	Jimmie Foxx J. Foxx	22.2	248	154	1.61	1945	PHN	9	1	0	1.000	2	1.59	10	0	0	0	13	4	4	0	14	1	7		94	0	3.97	5.56	0.71	0.00	10.6	14.9	1.19	.188	1.59	42	3.64	99	5.16	0
22	Sam Rice S. Rice	21.1	214	159	1.35	1916	WSH	5	0	1	.000	1	2.95	3	0	0	0	18	7	10	0	10	0	3		86	1	1.27	4.22	0.30	0.00	3.5	11.6	1.31	.247	4.22	106	3.44	123	7.59	-1.6
23	Chubby Dean C. Dean	9.0	358	154	2.32	1937	PHA	2	1	0	1.000	1	4.00	4	0	0	0	7	4	4	0	6	0	1		40	0	4.00	6.00	0.67	0.00	10.0	15.0	1.44	.233	4.00	86	4.15	91	7.00	0.4
24	Babe Ruth B. Ruth	9.0	575	152	3.78	1933	NYY	1	1	0	1.000	1	5.00	0	1	0	0	12	5	5	0	3	0	0		42	0	0.00	3.00	0.00	0.00	0.0	7.1	1.67	.308	5.00	124	3.80	100	12.00	0
25	Mark Koenig M. Koenig	9.0	387	154	2.51	1930	TOT	2	0	1	.000	1	10.00	6	0	0	0	11	10	10	0	8	1	1		44	2	6.00	8.00	0.75	0.00	13.6	18.2	2.11	.379	10.00	211	5.17	108	11.00	-0.4