fewest runs allowed in a season by a pitcher with at least 220 innings thrown

Dutch Leonard has given up the fewest runs with 220.0+ innings pitched in a season, with 34 runs in 1914.

	NAME	R	IP	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	Dutch Leonard D. Leonard	34	224.2	1914	BSA	36	19	5	.792	25	0.96	176	17	7	3	139	24	3	60	8	8		842	2	7.05	2.40	2.93	0.12	20.9	7.1	0.89	.229	1.36	36	1.95	70	5.57	20.4
2	Zack Greinke Z. Greinke	43	222.2	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
3	Fred Toney F. Toney	46	222.2	1915	CIN	36	17	6	.739	23	1.58	108	18	6	2	160	39	1	73	3	10		877	2	4.37	2.95	1.48	0.04	12.3	8.3	1.05	.230	1.86	57	2.52	89	6.47	7.7
4	Bob Gibson B. Gibson	49	304.2	1968	STL	34	22	9	.710	34	1.12	268	28	13	0	198	38	11	62	7	0	6	1,161	4	7.92	1.83	4.32	0.32	23.1	5.3	0.85	.230	1.45	38	1.77	63	5.85	34.8
5	Sandy Koufax S. Koufax	49	223.0	1964	LAD	29	19	5	.792	28	1.74	223	15	7	1	154	43	13	53	0	1	5	870	9	9.00	2.14	4.21	0.52	25.6	6.1	0.93	.243	1.98	53	2.08	67	6.22	27.1
6	Dwight Gooden D. Gooden	51	276.2	1985	NYM	35	24	4	.857	35	1.53	268	16	8	0	198	47	13	69	2	0	4	1,065	6	8.72	2.24	3.88	0.42	25.2	6.5	0.97	.259	1.66	44	2.12	59	6.44	45.6
7	Grover Alexander G. Alexander	51	235.0	1919	CHC	30	16	11	.593	27	1.72	121	20	9	1	180	45	3	38	0	3		906	1	4.63	1.46	3.18	0.11	13.4	4.2	0.93	.238	1.95	58	2.11	70	6.89	23.6
8	Mordecai Brown M. Brown	51	233.0	1907	CHC	34	20	6	.769	27	1.39	107	20	6	3	180	36	2	40	6	7		861	4	4.13	1.55	2.68	0.08	12.4	4.6	0.94	.252	1.97	56	1.97	75	6.95	17.2
9	Jake Arrieta J. Arrieta	52	229.0	2015	CHC	33	22	6	.786	33	1.77	236	4	3	0	150	45	10	48	6	0	2	870	6	9.28	1.89	4.92	0.39	27.1	5.5	0.86	.246	2.04	45	2.34	60	5.90	39
10	Ed Walsh E. Walsh	52	230.1	1909	CWS	31	15	11	.577	28	1.41	127	20	8	2	166	36	0	50	4	3		871	4	4.96	1.95	2.54	0.00	14.6	5.7	0.94	.241	2.03	61	1.82	81	6.49	10.3
11	Luis Tiant L. Tiant	53	258.1	1968	CLE	34	21	9	.700	32	1.60	264	19	9	0	152	46	16	73	4	0	4	987	3	9.20	2.54	3.62	0.56	26.7	7.4	0.87	.216	1.85	53	2.04	64	5.30	33
12	Clayton Kershaw C. Kershaw	55	236.0	2013	LAD	33	16	9	.640	33	1.83	232	3	2	0	164	48	11	52	3	0	2	908	12	8.85	1.98	4.46	0.42	25.6	5.7	0.92	.251	2.10	51	2.38	64	6.25	35.4
13	Dean Chance D. Chance	56	278.1	1964	LAA	46	20	9	.690	35	1.65	207	15	11	4	194	51	7	86	2	7	9	1,093	9	6.69	2.78	2.41	0.23	18.9	7.9	1.01	.236	1.81	48	2.39	67	6.27	37.9
14	Walter Johnson W. Johnson	56	346.0	1913	WSH	48	36	7	.837	36	1.14	243	29	11	2	232	44	9	38	9	10		1,271	2	6.32	0.99	6.39	0.23	19.1	3.0	0.78	.229	1.46	39	1.90	63	6.03	42.3
15	Mordecai Brown M. Brown	56	277.1	1906	CHC	36	26	6	.813	32	1.04	144	27	9	3	198	32	1	61	4	4		1,044	2	4.67	1.98	2.36	0.03	13.8	5.8	0.93	.236	1.82	39	2.08	75	6.43	21.1
16	Christy Mathewson C. Mathewson	57	275.1	1909	NYG	37	25	6	.806	33	1.14	149	26	8	2	192	35	2	36	0	4		998	4	4.87	1.18	4.14	0.07	14.9	3.6	0.83	.234	1.86	44	1.62	61	6.28	31.7
17	Greg Maddux G. Maddux	58	232.2	1997	ATL	33	19	4	.826	33	2.20	177	5	2	0	200	57	9	20	6	0	6	893	0	6.85	0.77	8.85	0.35	19.8	2.2	0.95	.280	2.24	53	2.42	58	7.74	46.2
18	Roger Clemens R. Clemens	59	228.1	1990	BOS	31	21	6	.778	31	1.93	209	7	4	0	193	49	7	54	7	0	3	920	8	8.24	2.13	3.87	0.28	22.7	5.9	1.08	.289	2.33	47	2.17	55	7.61	44.8
19	Kevin Brown K. Brown	60	233.0	1996	FLA	32	17	11	.607	32	1.89	159	5	3	0	187	49	8	33	16	0	2	906	6	6.14	1.27	4.82	0.31	17.5	3.6	0.94	.259	2.32	46	2.88	68	7.22	35.8
20	Ron Guidry R. Guidry	61	273.2	1978	NYY	35	25	3	.893	35	1.74	248	16	9	0	187	53	13	72	1	0	1	1,057	7	8.16	2.37	3.44	0.43	23.5	6.8	0.95	.241	2.01	48	2.18	58	6.15	48.5
21	Tom Seaver T. Seaver	61	286.1	1971	NYM	36	20	10	.667	35	1.76	289	21	4	0	210	56	18	61	4	1	2	1,103	5	9.08	1.92	4.74	0.57	26.2	5.5	0.95	.263	1.92	52	1.93	58	6.60	44.5
22	Clayton Kershaw C. Kershaw	62	232.2	2015	LAD	33	16	7	.696	33	2.13	301	4	3	0	163	55	15	42	5	0	1	890	9	11.64	1.62	7.17	0.58	33.8	4.7	0.88	.281	2.40	57	1.98	52	6.31	47.7
23	Harry Brecheen H. Brecheen	62	233.1	1948	SLN	33	20	7	.741	30	2.24	149	21	7	1	193	58	6	49	2	1		931	2	5.75	1.89	3.04	0.23	16.0	5.3	1.04	.258	2.39	55	2.37	57	7.44	45.6
24	Spud Chandler S. Chandler	62	253.0	1943	NYY	30	20	4	.833	30	1.64	134	20	5	0	197	46	5	54	4	0		989	3	4.77	1.92	2.48	0.18	13.5	5.5	0.99	.242	2.21	50	2.30	68	7.01	29.8
25	Orval Overall O. Overall	62	268.1	1907	CHC	36	23	7	.767	30	1.68	141	26	8	3	201	50	3	69	11	4		1,048	10	4.73	2.31	2.04	0.10	13.5	6.6	1.01	.240	2.08	68	2.17	82	6.74	13.7