most innings pitched in one season since 1975

Since 1975, Phil Niekro has pitched the most innings in a season, with 342 innings in 1979.

Interpreted as:

most innings pitched by a player in one season since 1975

	NAME	IP	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	Phil Niekro P. Niekro	342.0	1979	ATL	44	21	20	.512	44	3.39	208	23	1	0	311	129	160	41	113	11	0	8	1,436	18	5.47	2.97	1.84	1.08	14.5	7.9	1.24	.254	4.21	84	4.15	101	8.18	0.1
2	Phil Niekro P. Niekro	334.1	1978	ATL	44	19	18	.514	42	2.88	248	22	4	1	295	107	129	16	102	13	1	5	1,389	11	6.68	2.75	2.43	0.43	17.9	7.3	1.19	.276	3.47	73	2.74	72	7.94	38.1
3	Phil Niekro P. Niekro	330.1	1977	ATL	44	16	20	.444	43	4.03	262	20	2	0	315	148	166	26	164	8	1	12	1,428	17	7.14	4.47	1.60	0.71	18.3	11.5	1.45	.299	4.52	95	3.73	88	8.58	18.1
4	Catfish Hunter C. Hunter	328.0	1975	NYY	39	23	14	.622	39	2.58	177	30	7	0	248	94	107	25	83	5	0	4	1,294	7	4.86	2.28	2.13	0.69	13.7	6.4	1.01	.222	2.94	70	3.29	88	6.80	16
5	Jim Palmer J. Palmer	323.0	1975	BAL	39	23	11	.676	38	2.09	193	25	10	1	253	75	87	20	80	2	1	4	1,268	4	5.38	2.23	2.41	0.56	15.2	6.3	1.03	.239	2.42	58	2.95	80	7.05	27
6	Andy Messersmith A. Messersmith	321.2	1975	LAD	42	19	14	.576	40	2.29	213	19	7	1	244	82	92	22	96	5	2	2	1,276	8	5.96	2.69	2.22	0.62	16.7	7.5	1.06	.236	2.57	66	3.08	86	6.83	18.2
7	Jim Palmer J. Palmer	319.0	1977	BAL	39	20	11	.645	39	2.91	193	22	3	0	263	103	106	24	99	3	0	1	1,269	7	5.45	2.79	1.95	0.68	15.2	7.8	1.13	.252	2.99	77	3.46	89	7.42	15.5
8	Randy Jones R. Jones	315.1	1976	SDP	40	22	14	.611	40	2.74	93	25	5	0	274	96	109	15	50	4	0	9	1,251	0	2.65	1.43	1.86	0.43	7.4	4.0	1.03	.238	3.11	83	3.17	94	7.82	7.1
9	Jim Palmer J. Palmer	315.0	1976	BAL	40	22	13	.629	40	2.51	159	23	6	0	255	88	101	20	84	8	0	5	1,256	5	4.54	2.40	1.89	0.57	12.7	6.7	1.08	.239	2.89	77	3.32	97	7.29	3.3
10	Gaylord Perry G. Perry	305.2	1975	TOT	37	18	17	.514	37	3.24	233	25	5	0	277	110	127	28	70	4	0	6	1,248	5	6.86	2.06	3.33	0.82	18.7	5.6	1.14	.273	3.74	86	2.97	78	8.16	28.4
11	Steve Carlton S. Carlton	304.0	1980	PHI	38	24	9	.727	38	2.34	286	13	3	0	243	79	87	15	90	2	0	12	1,228	17	8.47	2.66	3.18	0.44	23.3	7.3	1.10	.273	2.58	64	2.41	66	7.19	42.3
12	Jim Kaat J. Kaat	303.2	1975	CWS	43	20	14	.588	41	3.11	142	12	1	0	321	105	121	20	77	9	1	0	1,279	0	4.21	2.28	1.84	0.59	11.1	6.0	1.31	.292	3.59	81	3.35	89	9.51	14.3
13	Dave Goltz D. Goltz	303.0	1977	MIN	39	20	11	.645	39	3.36	186	19	2	0	284	113	129	23	91	2	0	4	1,253	9	5.52	2.70	2.04	0.68	14.8	7.3	1.24	.274	3.83	81	3.41	83	8.44	23.2
14	Steve Rogers S. Rogers	301.2	1977	MON	40	17	16	.515	40	3.10	206	17	4	0	272	104	122	16	81	5	0	3	1,235	14	6.15	2.42	2.54	0.48	16.7	6.6	1.17	.276	3.64	81	2.91	76	8.11	31.2
15	Nolan Ryan N. Ryan	299.0	1977	CAL	37	19	16	.543	37	2.77	341	22	4	0	198	92	110	12	204	9	0	7	1,272	21	10.26	6.14	1.67	0.36	26.8	16.0	1.34	.263	3.31	72	3.11	79	5.96	27.9
16	Catfish Hunter C. Hunter	298.2	1976	NYY	36	17	15	.531	36	3.53	173	21	2	0	268	117	126	28	68	3	0	5	1,210	6	5.21	2.05	2.54	0.84	14.3	5.6	1.13	.256	3.80	102	3.40	97	8.08	3.1
17	Vida Blue V. Blue	298.1	1976	OAK	37	18	13	.581	37	2.35	166	20	6	0	268	78	90	9	63	1	0	3	1,205	5	5.01	1.90	2.63	0.27	13.8	5.2	1.11	.268	2.72	69	2.55	71	8.08	33.5
18	Bert Blyleven B. Blyleven	297.2	1976	TOT	36	13	16	.448	36	2.87	219	18	6	0	283	95	106	14	81	12	0	6	1,225	7	6.62	2.45	2.70	0.42	17.9	6.6	1.22	.299	3.20	82	2.71	78	8.56	25.9
19	Jim Palmer J. Palmer	296.0	1978	BAL	38	21	12	.636	38	2.46	138	19	6	0	246	81	94	19	97	1	0	1	1,197	5	4.20	2.95	1.42	0.58	11.5	8.1	1.16	.241	2.86	69	3.47	93	7.48	8.2
20	Steve Carlton S. Carlton	295.2	1982	PHI	38	23	11	.676	38	3.10	286	19	6	0	253	102	114	17	86	1	0	5	1,193	9	8.71	2.62	3.33	0.52	24.0	7.2	1.15	.294	3.47	85	2.40	67	7.70	38.3
21	Dennis Leonard D. Leonard	294.2	1978	KCR	40	21	17	.553	40	3.33	183	20	4	0	283	109	125	27	78	9	0	7	1,218	12	5.59	2.38	2.35	0.82	15.0	6.4	1.23	.278	3.82	88	3.41	91	8.64	11.5
22	Bert Blyleven B. Blyleven	293.2	1985	TOT	37	17	16	.515	37	3.16	206	24	5	0	264	103	121	23	75	9	0	1	1,203	4	6.31	2.30	2.75	0.70	17.1	6.2	1.15	.271	3.71	74	3.15	77	8.09	31.2
23	Jack Morris J. Morris	293.2	1983	DET	37	20	13	.606	37	3.34	232	20	1	0	257	109	117	30	83	3	0	5	1,204	18	7.11	2.54	2.80	0.92	19.3	6.9	1.16	.265	3.59	83	3.37	82	7.88	24
24	Mike Caldwell M. Caldwell	293.1	1978	MIL	37	22	9	.710	34	2.36	131	23	6	1	258	77	90	14	54	7	1	3	1,176	8	4.02	1.66	2.43	0.43	11.1	4.6	1.06	.252	2.76	63	2.93	79	7.92	26.3
25	Dennis Leonard D. Leonard	292.2	1977	KCR	38	20	12	.625	37	3.04	244	21	5	1	246	99	117	18	79	8	1	0	1,186	14	7.50	2.43	3.09	0.55	20.6	6.7	1.11	.272	3.60	74	2.75	69	7.56	40.3