highest r/ip-er/ip in a season with a minimum of 100 ip after 1950

Since 1951, Craig Anderson has the most runs allowed per inning pitched - earned runs per inning pitched with 100.0+ innings pitched in a season, with 0.23 in his rookie season in 1962.

Interpreted as:

highest r/ip-er/ip by a player in a season with a minimum of 100 ip after 1950

	NAME	R/IP-ER/IP	IP	R	ER	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	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	Craig Anderson C. Anderson	0.23	131.1	108	78	1962	NYM	50	3	17	.150	14	5.35	62	2	0	4	150	18	63	5	20	2	617	8	4.25	4.32	0.98	1.23	10.0	10.2	1.62	.281	7.40	130	5.01	125	10.28	-14
2	Anthony Young A. Young	0.2	100.1	62	42	1993	NYM	39	1	16	.059	10	3.77	62	1	0	3	103	8	42	1	19	9	445	0	5.56	3.77	1.48	0.72	13.9	9.4	1.45	.286	5.56	94	4.06	101	9.24	-0.7
3	Leo Kiely L. Kiely	0.18	131.0	74	51	1954	BOS	28	5	8	.385	19	3.50	59	4	1	0	153	12	58	1	0		589	0	4.05	3.98	1.02	0.82	10.0	9.8	1.61	.307	5.08	88	4.04	101	10.51	0
4	Ray Sadecki R. Sadecki	0.17	129.1	91	69	1966	TOT	31	5	8	.385	22	4.80	83	4	1	0	141	22	48	4	7	2	572	6	5.78	3.34	1.73	1.53	14.5	8.4	1.46	.287	6.33	133	4.69	135	9.81	-17.3
5	Bobby Bolin B. Bolin	0.17	137.1	73	50	1963	SFG	47	10	6	.625	12	3.28	134	2	0	7	128	13	57	7	17	4	604	8	8.78	3.74	2.35	0.85	22.2	9.4	1.35	.293	4.78	100	3.16	97	8.39	1.7
6	Sheldon Jones S. Jones	0.17	120.1	77	57	1951	NYG	41	6	11	.353	12	4.26	58	2	0	4	119	12	52	4	14		523	8	4.34	3.89	1.12	0.90	11.1	9.9	1.42	.270	5.76	108	4.21	104	8.90	-2
7	Ed Farmer E. Farmer	0.17	114.1	57	38	1979	TOT	53	5	7	.417	5	2.99	73	0	0	14	96	4	53	3	35	10	491	9	5.75	4.17	1.38	0.31	14.9	10.8	1.30	.257	4.49	72	3.37	82	7.56	9.5
8	Jack Hamilton J. Hamilton	0.16	148.2	89	65	1966	NYM	57	6	13	.316	13	3.93	93	3	1	13	138	13	88	5	29	4	662	18	5.63	5.33	1.06	0.79	14.0	13.3	1.52	.270	5.39	110	4.32	125	8.35	-14.5
9	Ike Delock I. Delock	0.16	156.0	110	85	1961	BOS	28	6	9	.400	28	4.90	80	3	1	0	185	24	52	2	0	2	698	2	4.62	3.00	1.54	1.38	11.5	7.4	1.52	.298	6.35	117	4.59	108	10.67	-5.1
10	Ed Roebuck E. Roebuck	0.16	119.1	60	41	1962	LAD	64	10	2	.833	0	3.09	72	0	0	9	102	11	54	6	22	6	512	8	5.43	4.07	1.33	0.83	14.1	10.5	1.31	.247	4.53	85	4.12	117	7.69	-9.1
11	Danny Jackson D. Jackson	0.16	100.2	82	66	1995	STL	19	2	12	.143	19	5.90	52	2	1	0	120	10	48	6	0	1	467	6	4.65	4.29	1.08	0.89	11.1	10.3	1.67	.313	7.33	144	4.97	120	10.73	-9.6
12	Steve Trout S. Trout	0.16	120.1	76	57	1982	CWS	25	6	9	.400	19	4.26	62	2	0	0	130	9	50	2	3	2	537	3	4.64	3.74	1.24	0.67	11.5	9.3	1.50	.292	5.68	104	3.95	96	9.72	2.1
13	Matt Garza M. Garza	0.16	101.2	67	51	2016	MIL	19	6	8	.429	19	4.51	70	0	0	0	117	11	36	3	0	2	461	3	6.20	3.19	1.94	0.97	15.2	7.8	1.50	.311	5.93	107	4.32	103	10.36	-1.2
14	Al Worthington A. Worthington	0.16	102.0	55	39	1953	NYG	20	4	8	.333	17	3.44	52	5	2	0	103	6	54	2	2		461	2	4.59	4.76	0.96	0.53	11.3	11.7	1.54	.280	4.85	80	3.99	94	9.09	3.1
15	John Halama J. Halama	0.16	108.2	68	51	2003	OAK	35	3	5	.375	13	4.22	51	0	0	0	117	18	36	2	4	2	484	3	4.22	2.98	1.42	1.49	10.5	7.4	1.41	.263	5.63	94	5.29	117	9.69	-9.3
16	Jon Lieber J. Lieber	0.16	108.2	62	45	1994	PIT	17	6	7	.462	17	3.73	71	1	0	0	116	12	25	1	0	3	460	2	5.88	2.07	2.84	0.99	15.4	5.4	1.30	.296	5.13	87	3.97	93	9.61	3.7
17	Jerry Reuss J. Reuss	0.16	160.0	88	63	1979	LAD	39	7	14	.333	21	3.54	83	4	1	3	178	4	60	3	11	7	712	7	4.67	3.38	1.38	0.23	11.7	8.4	1.49	.310	4.95	97	3.19	84	10.01	11
18	Jack Fisher J. Fisher	0.16	116.0	77	59	1963	SFG	36	6	10	.375	12	4.58	57	2	0	1	132	12	38	5	9	3	517	2	4.42	2.95	1.50	0.93	11.0	7.4	1.47	.296	5.97	139	3.95	121	10.24	-8.8
19	Dan Petry D. Petry	0.16	116.0	78	60	1986	DET	20	5	10	.333	20	4.66	56	2	0	0	122	15	53	5	0	3	520	5	4.34	4.11	1.06	1.16	10.8	10.2	1.51	.274	6.05	115	4.98	119	9.47	-9.9
20	Bob Friend B. Friend	0.15	149.2	94	71	1951	PIT	34	6	10	.375	22	4.27	41	3	1	0	173	12	68	0	5		666	1	2.47	4.09	0.60	0.72	6.2	10.2	1.61	.295	5.65	103	4.34	102	10.40	-0.8
21	Ray Narleski R. Narleski	0.15	104.1	83	67	1959	DET	42	4	12	.250	10	5.78	71	1	0	5	105	21	59	1	21	3	487	4	6.12	5.09	1.20	1.81	14.6	12.1	1.57	.251	7.16	145	5.52	136	9.06	-16.3
22	Derek Lowe D. Lowe	0.15	182.2	138	110	2004	BOS	33	14	12	.538	33	5.42	105	0	0	0	224	15	71	8	0	2	839	3	5.17	3.50	1.48	0.74	12.5	8.5	1.61	.327	6.80	115	4.26	97	11.04	2.4
23	Lerrin LaGrow L. LaGrow	0.15	164.1	105	80	1975	DET	32	7	14	.333	26	4.38	75	7	2	0	183	15	66	2	4	5	736	5	4.11	3.61	1.14	0.82	10.2	9.0	1.52	.291	5.75	112	4.09	104	10.02	-2.7
24	Bob Moorhead B. Moorhead	0.15	105.1	69	53	1962	NYM	38	0	2	.000	7	4.53	63	0	0	0	118	13	42	4	11	4	462	7	5.38	3.59	1.50	1.11	13.6	9.1	1.52	.309	5.90	110	4.34	109	10.08	-3.6
25	Zach McAllister Z. McAllister	0.15	125.1	78	59	2012	CLE	22	6	8	.429	22	4.24	110	0	0	0	133	19	38	1	0	0	543	0	7.90	2.73	2.89	1.36	20.3	7.0	1.36	.304	5.60	107	4.24	103	9.55	-1.5