Between the 1980 and 1989 seasons, Jack Morris pitched the most innings, with 2443.2 innings.

Interpreted as:

most ip by a player pitched 1980's

	NAME	IP	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	Jack Morris J. Morris	2443.2	332	162	119	.577	332	3.66	1,629	133	20	0	2,212	995	1,085	264	858	23	0	66	10,208	124	6.00	3.16	1.90	0.97	16.0	8.4	1.26	.262	4.00	92	3.89	94	8.15	66.7
2	Dave Stieb D. Stieb	2328.2	339	140	109	.562	331	3.32	1,380	92	27	1	2,019	859	954	183	825	104	4	29	9,654	39	5.33	3.19	1.67	0.71	14.3	8.5	1.22	.256	3.69	80	3.77	93	7.80	77.5
3	Fernando Valenzuela F. Valenzuela	2144.2	298	128	103	.554	287	3.19	1,644	102	27	2	1,876	760	869	133	838	16	5	54	8,957	81	6.90	3.52	1.96	0.56	18.4	9.4	1.27	.276	3.65	91	3.21	90	7.87	84
4	Charlie Hough C. Hough	2121.2	331	128	114	.529	282	3.67	1,363	93	11	2	1,842	864	999	218	867	80	22	18	8,942	98	5.78	3.68	1.57	0.92	15.2	9.7	1.28	.253	4.24	90	4.14	103	7.81	-28.2
5	Nolan Ryan N. Ryan	2094.0	314	122	104	.540	314	3.14	2,167	44	15	0	1,603	730	835	128	894	53	0	34	8,704	123	9.31	3.84	2.42	0.55	24.9	10.3	1.19	.270	3.59	90	2.82	81	6.89	159.5
6	Bob Welch B. Welch	2082.1	313	137	93	.596	311	3.21	1,457	47	22	0	1,885	743	821	155	666	49	0	40	8,655	43	6.30	2.88	2.19	0.67	16.8	7.7	1.23	.273	3.55	90	3.34	92	8.15	63.4
7	Bert Blyleven B. Blyleven	2078.1	291	123	103	.544	288	3.64	1,480	94	21	0	1,984	841	919	212	557	73	1	26	8,623	44	6.41	2.41	2.66	0.92	17.2	6.5	1.22	.281	3.98	89	3.56	88	8.59	109.6
8	Jim Clancy J. Clancy	2017.2	329	119	126	.486	317	4.09	1,145	61	10	1	1,996	918	1,017	207	711	27	8	30	8,582	72	5.11	3.17	1.61	0.92	13.3	8.3	1.34	.276	4.54	100	4.04	100	8.90	1.9
9	Bob Knepper B. Knepper	2005.1	332	105	118	.471	306	3.70	1,068	50	20	1	2,045	824	946	167	597	36	8	52	8,484	39	4.79	2.68	1.79	0.75	12.6	7.0	1.32	.284	4.25	107	3.70	107	9.18	-64.6
10	Doyle Alexander D. Alexander	2004.1	300	112	98	.533	289	3.85	1,029	51	10	0	2,065	858	930	223	503	32	7	28	8,423	34	4.62	2.26	2.05	1.00	12.2	6.0	1.28	.278	4.18	97	3.96	100	9.27	3.7
11	Frank Tanana F. Tanana	1994.0	314	107	122	.467	304	3.89	1,225	51	8	0	2,014	861	989	219	589	55	3	59	8,493	55	5.53	2.66	2.08	0.99	14.4	6.9	1.31	.280	4.46	97	3.91	97	9.09	27
12	Mike Witt M. Witt	1945.0	304	109	104	.512	272	3.78	1,269	70	10	5	1,913	816	917	166	643	47	18	36	8,220	64	5.87	2.98	1.97	0.77	15.4	7.8	1.31	.287	4.24	95	3.61	88	8.85	109.1
13	Rick Rhoden R. Rhoden	1918.1	294	109	100	.522	288	3.65	1,092	48	10	1	1,954	779	856	139	596	32	4	57	8,082	63	5.12	2.80	1.83	0.65	13.5	7.4	1.33	.292	4.02	98	3.52	94	9.17	46.3
14	Floyd Bannister F. Bannister	1890.2	297	112	109	.507	294	3.98	1,356	50	11	0	1,813	836	929	234	616	28	0	23	7,994	66	6.45	2.93	2.20	1.11	17.0	7.7	1.28	.274	4.42	96	3.94	96	8.63	35.4
15	Rick Sutcliffe R. Sutcliffe	1860.0	310	116	93	.555	260	3.87	1,285	59	15	6	1,764	799	866	160	745	28	27	56	7,887	74	6.22	3.60	1.72	0.77	16.3	9.4	1.35	.283	4.19	99	3.74	96	8.54	34.8
16	Frank Viola F. Viola	1858.0	272	117	98	.544	271	3.84	1,287	56	11	0	1,850	792	877	218	548	30	0	20	7,801	48	6.23	2.65	2.35	1.06	16.5	7.0	1.29	.285	4.25	91	3.83	94	8.96	46.2
17	Richard Dotson R. Dotson	1804.1	292	109	109	.500	283	4.16	951	54	10	0	1,813	835	922	191	720	40	6	23	7,788	42	4.74	3.59	1.32	0.95	12.2	9.2	1.40	.276	4.60	102	4.33	108	9.04	-62.1
18	Mike Scott M. Scott	1803.2	295	114	90	.559	276	3.42	1,324	41	20	3	1,594	685	761	140	537	31	13	43	7,436	37	6.61	2.68	2.47	0.70	17.8	7.2	1.18	.269	3.80	98	3.23	93	7.95	53.3
19	Don Sutton D. Sutton	1765.2	272	107	86	.554	270	3.53	1,050	26	8	1	1,655	693	754	190	424	23	1	22	7,277	28	5.35	2.16	2.48	0.97	14.4	5.8	1.18	.262	3.84	93	3.70	96	8.44	26.9
20	Mike Flanagan M. Flanagan	1740.0	278	103	94	.523	276	4.01	845	49	10	0	1,801	776	846	170	568	25	1	25	7,400	57	4.37	2.94	1.49	0.88	11.4	7.7	1.36	.282	4.38	101	4.06	101	9.32	-6.1
21	Steve Carlton S. Carlton	1732.1	254	104	84	.553	240	3.48	1,453	54	13	1	1,604	670	774	135	631	12	6	50	7,271	76	7.55	3.28	2.30	0.70	20.0	8.7	1.29	.291	4.02	92	3.18	85	8.33	100.4
22	Dan Petry D. Petry	1731.1	283	107	87	.552	256	3.84	908	49	11	0	1,630	739	832	179	697	40	8	56	7,350	62	4.72	3.62	1.30	0.93	12.4	9.5	1.34	.263	4.32	96	4.30	104	8.47	-30.4
23	Rick Mahler R. Mahler	1728.2	319	87	101	.463	247	3.93	845	41	8	2	1,837	754	852	141	528	30	16	63	7,350	36	4.40	2.75	1.60	0.73	11.5	7.2	1.37	.292	4.44	102	3.79	99	9.56	7.5
24	Dennis Martinez D. Martinez	1722.0	302	107	87	.552	255	4.00	868	47	11	1	1,784	765	848	190	512	49	19	27	7,316	43	4.54	2.68	1.70	0.99	11.9	7.0	1.33	.280	4.43	104	4.14	107	9.32	-54.1
25	Joe Niekro J. Niekro	1713.2	264	105	96	.522	259	3.56	884	52	12	0	1,624	677	783	119	623	32	3	26	7,247	110	4.64	3.27	1.42	0.62	12.2	8.6	1.31	.269	4.11	99	3.75	105	8.53	-42