least runs allowed by a pitcher with a minimum of 1 ip per team game in a season in 1950 to 2019

Between the 1950 and 2019 seasons, Sammy Stewart allowed the fewest runs when he had 1 or more (IP/TM GMS) in a season, with 33 runs in 1981.

	NAME	R	IP	TM GMS	IP/TM GMS	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	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	Sammy Stewart S. Stewart	33	112.1	105	1.07	1981	BAL	29	4	8	.333	3	2.32	57	0	0	4	89	29	8	57	3	18	4	463	1	4.57	4.57	1.00	0.64	12.3	12.3	1.30	.240	2.64	65	4.11	112	7.13	-5.4
2	Nolan Ryan N. Ryan	34	149.0	110	1.35	1981	HOU	21	11	5	.688	21	1.69	140	5	3	0	99	28	2	68	1	0	1	605	16	8.46	4.11	2.06	0.12	23.1	11.2	1.12	.246	2.05	52	2.28	70	5.98	16.5
3	Greg Maddux G. Maddux	39	209.2	144	1.46	1995	ATL	28	19	2	.905	28	1.63	181	10	3	0	147	38	8	23	4	0	3	785	1	7.77	0.99	7.87	0.34	23.1	2.9	0.81	.244	1.67	39	2.25	52	6.31	46.9
4	Steve Ontiveros S. Ontiveros	39	115.1	114	1.01	1994	OAK	27	6	4	.600	13	2.65	56	2	0	0	93	34	7	26	6	5	1	463	5	4.37	2.03	2.15	0.55	12.1	5.6	1.03	.234	3.04	58	3.77	81	7.26	11.8
5	Vida Blue V. Blue	40	124.2	111	1.12	1981	SFG	18	8	6	.571	18	2.45	63	1	0	0	97	34	7	54	1	0	3	513	7	4.55	3.90	1.17	0.51	12.3	10.5	1.21	.232	2.89	73	3.64	110	7.00	-4.8
6	Blake Snell B. Snell	41	180.2	162	1.12	2018	TBR	31	21	5	.808	31	1.89	221	0	0	0	112	38	16	64	1	0	2	700	13	11.01	3.19	3.45	0.80	31.6	9.1	0.97	.241	2.04	46	2.94	72	5.58	23.1
7	Bill Swift B. Swift	41	164.2	162	1.02	1992	SFG	30	10	4	.714	22	2.08	77	3	2	1	144	38	6	43	3	2	3	655	0	4.21	2.35	1.79	0.33	11.8	6.6	1.14	.262	2.24	61	3.15	90	7.87	6.5
8	Ron Guidry R. Guidry	41	127.0	107	1.19	1981	NYY	23	11	5	.688	21	2.76	104	0	0	0	100	39	12	26	1	1	0	497	6	7.37	1.84	4.00	0.85	20.9	5.2	0.99	.249	2.91	78	2.82	77	7.09	11.7
9	Bob Knepper B. Knepper	41	156.2	110	1.42	1981	HOU	22	9	5	.643	22	2.18	75	6	5	0	128	38	5	38	4	0	1	617	0	4.31	2.18	1.97	0.29	12.2	6.2	1.06	.248	2.36	67	2.86	88	7.35	6.7
10	Dennis Lamp D. Lamp	41	127.0	106	1.2	1981	CWS	27	7	6	.538	10	2.41	71	3	0	0	103	34	4	43	1	5	1	514	4	5.03	3.05	1.65	0.28	13.8	8.4	1.15	.251	2.91	66	2.93	79	7.30	10.7
11	Rick Mahler R. Mahler	41	112.1	107	1.05	1981	ATL	34	8	6	.571	14	2.80	54	1	0	2	109	35	5	43	1	10	5	478	3	4.33	3.45	1.26	0.40	11.3	9.0	1.35	.277	3.28	77	3.39	94	8.73	3.1
12	Roger Nelson R. Nelson	41	173.1	154	1.13	1972	KCR	34	11	6	.647	19	2.08	120	10	6	2	120	40	13	31	1	9	1	652	4	6.23	1.61	3.87	0.68	18.4	4.8	0.87	.220	2.13	68	2.54	79	6.23	12.6
13	Clayton Kershaw C. Kershaw	42	198.1	162	1.22	2014	LAD	27	21	3	.875	27	1.77	239	6	2	0	139	39	9	31	2	0	0	749	7	10.85	1.41	7.71	0.41	31.9	4.1	0.86	.278	1.91	51	1.81	50	6.31	40.5
14	Danny Darwin D. Darwin	42	162.2	162	1	1990	HOU	48	11	4	.733	17	2.21	109	3	0	2	136	40	11	31	4	14	4	646	0	6.03	1.72	3.52	0.61	16.9	4.8	1.03	.255	2.32	61	2.98	83	7.52	11.3
15	Burt Hooton B. Hooton	42	142.1	110	1.29	1981	LAD	23	11	6	.647	23	2.28	74	5	4	0	124	36	3	33	2	0	2	571	3	4.68	2.09	2.24	0.19	13.0	5.8	1.10	.264	2.66	67	2.57	76	7.84	13
16	Zack Greinke Z. Greinke	43	222.2	162	1.37	2015	LAD	32	19	3	.864	32	1.66	200	1	0	0	148	41	14	40	5	0	1	843	7	8.08	1.62	5.00	0.57	23.7	4.7	0.84	.229	1.74	44	2.75	73	5.98	26.2
17	Pedro Martinez P. Martinez	44	217.0	162	1.34	2000	BOS	29	18	6	.750	29	1.74	284	7	4	0	128	42	17	32	14	0	0	817	1	11.78	1.33	8.88	0.71	34.8	3.9	0.74	.236	1.82	35	2.16	47	5.31	61.5
18	Greg Maddux G. Maddux	44	202.0	114	1.77	1994	ATL	25	16	6	.727	25	1.56	156	10	3	0	150	35	4	31	6	0	3	774	3	6.95	1.38	5.03	0.18	20.2	4.0	0.90	.253	1.96	37	2.39	55	6.68	43.7
19	Jerry Reuss J. Reuss	44	152.2	110	1.39	1981	LAD	22	10	4	.714	22	2.30	51	8	2	0	138	39	6	27	4	0	3	608	1	3.01	1.59	1.89	0.35	8.4	4.4	1.08	.254	2.59	68	3.05	90	8.14	5.7
20	Bobby Bolin B. Bolin	44	176.2	163	1.08	1968	SFG	34	10	5	.667	19	1.99	126	6	3	0	128	39	9	46	4	2	9	696	9	6.42	2.34	2.74	0.46	18.1	6.6	0.98	.233	2.24	68	2.47	89	6.52	5.8
21	Luis Tiant L. Tiant	45	179.0	155	1.15	1972	BOS	43	15	6	.714	19	1.91	123	12	6	3	128	38	7	65	0	12	5	713	0	6.18	3.27	1.89	0.35	17.3	9.1	1.08	.234	2.26	59	2.62	77	6.44	14.9
22	Tommy John T. John	45	177.1	162	1.09	1968	CWS	25	10	5	.667	25	1.98	117	5	1	0	135	39	10	49	12	0	4	705	2	5.94	2.49	2.39	0.51	16.6	7.0	1.04	.242	2.28	66	2.83	89	6.85	6.7
23	Matt Harvey M. Harvey	46	178.1	162	1.1	2013	NYM	26	9	5	.643	26	2.27	191	1	1	0	135	45	7	31	4	0	1	690	2	9.64	1.56	6.16	0.35	27.7	4.5	0.93	.280	2.32	64	2.00	53	6.81	34.9
24	Shane Reynolds S. Reynolds	46	124.0	115	1.08	1994	HOU	33	8	5	.615	14	3.05	110	1	1	0	128	42	10	21	6	5	3	517	3	7.98	1.52	5.24	0.73	21.3	4.1	1.20	.319	3.34	77	3.05	74	9.29	14.9
25	Jose Fernandez J. Fernandez	47	172.2	162	1.07	2013	MIA	28	12	6	.667	28	2.19	187	0	0	0	111	42	10	58	5	0	5	681	3	9.75	3.02	3.22	0.52	27.5	8.5	0.98	.240	2.45	60	2.72	75	5.79	18.1