Between the 1970 and 1979 seasons, Phil Niekro allowed the most runs, with 1,228 runs.

Interpreted as:

most runs allowed by a player in the 1970s

	NAME	R	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	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	1,228	406	164	151	.521	376	3.26	1,866	160	25	8	2881.0	2,642	1,045	259	920	76	19	53	12,043	116	5.83	2.87	2.03	0.81	15.5	7.6	1.24	.267	3.84	83	3.50	90	8.25	120.6
2	Fergie Jenkins F. Jenkins	1,128	360	178	130	.578	354	3.38	1,841	184	33	0	2706.2	2,507	1,015	301	518	51	5	55	11,009	34	6.12	1.72	3.55	1.00	16.7	4.7	1.12	.266	3.75	86	3.29	86	8.34	158.8
3	Steve Carlton S. Carlton	1,103	368	178	126	.586	366	3.18	2,097	165	32	0	2747.0	2,413	971	238	960	31	0	87	11,361	81	6.87	3.15	2.18	0.78	18.5	8.4	1.23	.271	3.61	85	3.26	89	7.91	125.5
4	Gaylord Perry G. Perry	1,088	369	184	133	.580	368	2.92	1,907	197	36	1	2905.0	2,559	942	207	758	51	1	75	11,759	68	5.91	2.35	2.52	0.64	16.2	6.4	1.14	.266	3.37	80	3.02	83	7.93	199.6
5	Mike Torrez M. Torrez	1,001	323	134	104	.563	313	3.71	985	100	14	0	2138.2	2,049	882	148	962	44	3	58	9,194	74	4.15	4.05	1.02	0.62	10.7	10.5	1.41	.269	4.21	96	3.99	105	8.62	-43.1
6	Nolan Ryan N. Ryan	984	348	155	146	.515	333	3.14	2,678	164	42	2	2465.0	1,731	860	133	1,515	75	8	34	10,453	116	9.78	5.53	1.77	0.49	25.6	14.5	1.32	.264	3.59	89	3.05	85	6.32	150.5
7	Rick Wise R. Wise	980	314	133	117	.532	303	3.67	1,112	107	22	0	2121.0	2,156	866	188	556	26	4	53	8,912	31	4.72	2.36	2.00	0.80	12.5	6.2	1.28	.280	4.16	95	3.50	93	9.15	65
8	Don Sutton D. Sutton	975	352	166	110	.601	349	3.07	1,767	117	39	2	2557.1	2,174	871	214	660	45	3	45	10,403	63	6.22	2.32	2.68	0.75	17.0	6.3	1.11	.254	3.43	87	3.11	88	7.65	121.3
9	Jack Billingham J. Billingham	970	359	135	103	.567	296	3.77	1,017	73	27	5	2045.2	2,070	857	157	673	87	32	76	8,670	75	4.47	2.96	1.51	0.69	11.7	7.8	1.34	.284	4.27	103	3.69	101	9.11	-12.3
10	Bert Blyleven B. Blyleven	949	353	148	128	.536	350	2.88	2,082	145	39	0	2624.2	2,335	841	186	711	70	2	43	10,722	61	7.14	2.44	2.93	0.64	19.4	6.6	1.16	.280	3.25	78	2.80	76	8.01	260.7
11	Jerry Koosman J. Koosman	947	337	124	127	.494	313	3.30	1,587	85	15	5	2281.1	2,119	837	173	747	40	13	74	9,498	53	6.26	2.95	2.12	0.68	16.7	7.9	1.26	.280	3.74	92	3.22	89	8.36	97.6
12	Jerry Reuss J. Reuss	942	323	114	108	.514	287	3.79	1,141	83	22	6	1967.0	2,000	828	121	742	34	18	66	8,486	73	5.22	3.40	1.54	0.55	13.4	8.7	1.39	.291	4.31	105	3.40	95	9.15	41.9
13	Catfish Hunter C. Hunter	936	329	169	102	.624	327	3.17	1,309	140	30	0	2399.0	2,047	846	257	606	34	2	31	9,702	33	4.91	2.27	2.16	0.96	13.5	6.2	1.11	.239	3.51	90	3.67	102	7.68	-26.2
14	Ken Holtzman K. Holtzman	928	329	126	107	.541	294	3.50	1,038	97	22	2	2073.2	2,066	807	175	626	32	15	42	8,728	72	4.51	2.72	1.66	0.76	11.9	7.2	1.30	.276	4.03	96	3.61	98	8.97	17.2
15	Vida Blue V. Blue	927	330	155	109	.587	327	3.07	1,600	124	32	1	2398.2	2,080	819	161	780	19	1	42	9,827	69	6.00	2.93	2.05	0.60	16.3	7.9	1.19	.264	3.48	88	3.12	87	7.80	125.1
16	Wilbur Wood W. Wood	923	363	136	123	.525	276	3.31	1,138	113	24	22	2150.1	2,087	792	170	570	50	68	31	8,931	49	4.76	2.39	2.00	0.71	12.7	6.4	1.24	.274	3.86	89	3.37	91	8.73	73.8
17	Joe Coleman J. Coleman	919	380	107	97	.525	246	3.76	1,319	64	12	6	1937.2	1,813	810	183	795	63	68	51	8,277	89	6.13	3.69	1.66	0.85	15.9	9.6	1.35	.275	4.27	102	3.74	100	8.42	-0.8
18	Jim Slaton J. Slaton	913	287	104	112	.481	271	3.87	873	80	21	0	1895.1	1,923	814	180	693	35	5	45	8,119	70	4.15	3.29	1.26	0.85	10.8	8.5	1.38	.275	4.34	103	4.07	108	9.13	-65.1
19	Steve Renko S. Renko	912	323	94	109	.463	272	3.95	1,112	47	9	4	1846.0	1,764	810	184	775	17	20	74	7,926	60	5.42	3.78	1.43	0.90	14.0	9.8	1.38	.271	4.45	103	3.96	106	8.60	-37
20	Paul Splittorff P. Splittorff	904	306	123	106	.537	286	3.66	817	79	17	1	1905.2	1,925	776	137	595	28	6	33	8,052	36	3.86	2.81	1.37	0.65	10.1	7.4	1.32	.276	4.27	97	3.64	98	9.09	15.1
21	Mickey Lolich M. Lolich	897	319	115	117	.496	277	3.43	1,496	133	20	1	2110.0	2,048	803	202	581	32	15	40	8,765	71	6.38	2.48	2.57	0.86	17.1	6.6	1.25	.286	3.83	94	3.23	87	8.74	107.8
22	Jim Kaat J. Kaat	896	362	122	99	.552	290	3.57	925	72	14	2	2004.1	2,122	794	171	431	37	24	42	8,387	38	4.15	1.94	2.15	0.77	11.0	5.1	1.27	.286	4.02	95	3.46	92	9.53	62
23	Dave Roberts D. Roberts	884	377	101	115	.468	264	3.69	880	77	20	11	1952.1	2,009	800	138	563	27	50	73	8,262	39	4.06	2.60	1.56	0.64	10.7	6.8	1.32	.281	4.08	101	3.49	98	9.26	15.3
24	Jim Palmer J. Palmer	883	355	186	103	.644	352	2.58	1,559	175	44	2	2745.0	2,275	787	184	861	26	3	31	11,105	55	5.11	2.82	1.81	0.60	14.0	7.8	1.14	.247	2.90	73	3.28	90	7.46	110.6
25	Stan Bahnsen S. Bahnsen	869	396	110	112	.495	254	3.80	961	57	13	13	1854.2	1,841	784	164	691	31	59	38	7,896	65	4.66	3.35	1.39	0.80	12.2	8.8	1.37	.277	4.22	107	3.84	106	8.93	-47.5