single season ip leaders with a minimum of 2.5 pa per team game since 1914

Since 1914, Babe Ruth has pitched the most innings when he has had 2.5 or more (PA/TM GMS) in a season, with 166.1 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	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
2	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	Babe Ruth B. Ruth	9.0	676	154	4.39	1930	NYY	1	1	0	1.000	1	3.00	3	1	0	0	11	3	3	0	2	0	0		39	0	3.00	2.00	1.50	0.00	7.7	5.1	1.44	.324	3.00	68	3.50	78	11.00	1
11	Babe Ruth B. Ruth	9.0	693	153	4.53	1921	NYY	2	2	0	1.000	1	9.00	2	0	0	0	14	9	10	1	9	0	1		49	0	2.00	9.00	0.22	1.00	4.1	18.4	2.56	.351	10.00	210	7.10	170	14.00	-2.9
12	Granny Hamner G. Hamner	8.1	438	154	2.84	1956	PHI	3	0	1	.000	0	4.32	4	0	0	0	10	4	4	0	2	0	2	0	36	0	4.32	2.16	2.00	0.00	11.1	5.6	1.44	.333	4.32	116	2.13	55	10.80	1.6
13	Ed Konetchy E. Konetchy	8.0	487	124	3.93	1918	BSN	1	0	1	.000	1	6.75	3	1	0	0	14	6	8	0	2	0	0		40	0	3.38	2.25	1.50	0.00	7.5	5.0	2.00	.400	9.00	254	2.23	86	15.75	0.3
14	George Sisler G. Sisler	8.0	506	123	4.11	1918	SLA	2	0	0		1	4.50	4	0	0	1	10	4	6	0	4	1	1		41	1	4.50	4.50	1.00	0.00	9.8	9.8	1.75	.313	6.75	161	3.11	108	11.25	-0.2
15	Bucky Walters B. Walters	7.0	415	153	2.71	1934	TOT	2	0	0		1	1.29	7	0	0	0	8	1	3	1	2	1	1		30	0	9.00	2.57	3.50	1.29	23.3	6.7	1.43	.368	3.86	28	4.26	92	10.29	0.3
16	Charlie Jamieson C. Jamieson	5.2	641	155	4.14	1922	CLE	2	0	0		0	3.18	2	0	0	0	7	2	3	0	4	0	2		26	1	3.18	6.35	0.50	0.00	7.7	15.4	1.94	.350	4.76	79	4.42	108	11.12	-0.2
17	Al Libke A. Libke	5.0	479	156	3.07	1946	CIN	1	0	0		1	3.60	2	0	0	0	4	2	2	0	3	0	0		20	1	3.60	5.40	0.67	0.00	10.0	15.0	1.40	.267	3.60	109	3.38	100	7.20	0
18	Al Libke A. Libke	4.1	489	154	3.18	1945	CIN	4	0	0		0	0.00	2	0	0	0	3	0	0	0	3	0	4		18	1	4.15	6.23	0.67	0.00	11.1	16.7	1.38	.231	0.00	0	3.69	104	6.23	-0.1
19	Harold Castro H. Castro	4.0	443	162	2.73	2022	DET	4	0	0		0	4.50	1	0	0	0	6	2	2	0	1	1	3	0	18	0	2.25	2.25	1.00	0.00	5.6	5.6	1.75	.400	4.50	116	4.11	105	13.50	-0.1
20	Jose Oquendo J. Oquendo	4.0	518	162	3.2	1988	STL	1	0	1	.000	0	4.50	1	0	0	0	4	2	2	0	6	0	1	2	21	1	2.25	13.50	0.17	0.00	4.8	28.6	2.50	.286	4.50	129	6.76	195	9.00	-1.5
21	Joe Marty J. Marty	4.0	408	156	2.62	1939	TOT	1	0	0		0	4.50	1	0	0	0	2	2	2	0	3	0	1		17	0	2.25	6.75	0.33	0.00	5.9	17.6	1.25	.154	4.50	115	4.72	116	4.50	-0.3
22	Doc Cramer D. Cramer	4.0	717	150	4.78	1938	BSA	1	0	0		0	4.50	1	0	0	0	3	2	2	0	3	0	1		17	0	2.25	6.75	0.33	0.00	5.9	17.6	1.50	.231	4.50	91	4.67	99	6.75	0
23	Bernie Friberg B. Friberg	4.0	519	154	3.37	1925	TOT	1	0	0		0	4.50	1	0	0	0	4	2	2	0	3	0	1		17	0	2.25	6.75	0.33	0.00	5.9	17.6	1.75	.308	4.50	96	4.86	104	9.00	0
24	Babe Ruth B. Ruth	4.0	616	154	4	1920	NYY	1	1	0	1.000	1	4.50	0	0	0	0	3	2	4	0	2	0	0		17	0	0.00	4.50	0.00	0.00	0.0	11.8	1.25	.200	9.00	119	4.25	117	6.75	-0.3
25	Ty Cobb T. Cobb	4.0	473	128	3.7	1918	DET	2	0	0		0	4.50	0	0	0	0	6	2	2	0	2	0	1		17	0	0.00	4.50	0.00	0.00	0.0	11.8	2.00	.400	4.50	162	3.73	131	13.50	-0.4