All-Time Astros Player Pitching Stat Leaders by Season

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PLAYER	YEAR	TEAM	W	L	ERA	G	GS	CG	SHO	SV	SVO	IP	H	R	ER	HR	HB	BB	SO	WHIP	AVG
1 LarryL DierkerDierker P 1 ‌ ‌ ‌	1969	HOU	20	13	2.33	39	37	20	4	0	0	305.1	240	97	79	18	1	72	232	1.02	.214
2 J.R.J RichardRichard P 2 ‌ ‌ ‌	1979	HOU	18	13	2.71	38	38	19	4	0	0	292.1	220	98	88	13	3	98	313	1.09	.209
3 J.R.J RichardRichard P 3 ‌ ‌ ‌	1976	HOU	20	15	2.75	39	39	14	3	0	0	291.0	221	105	89	14	4	151	214	1.28	.212
4 JerryJ ReussReuss P 4 ‌ ‌ ‌	1973	HOU	16	13	3.74	41	40	12	3	0	0	279.1	271	123	116	17	3	117	177	1.39	.256
5 MikeM ScottScott P 5 ‌ ‌ ‌	1986	HOU	18	10	2.22	37	37	7	5	0	0	275.1	182	73	68	17	2	72	306	0.92	.186
5 J.R.J RichardRichard P 5 ‌ ‌ ‌	1978	HOU	18	11	3.11	36	36	16	3	0	0	275.1	192	104	95	12	2	141	303	1.21	.196
7 JoeJ NiekroNiekro P 7 ‌ ‌ ‌	1982	HOU	17	12	2.47	35	35	16	5	0	0	270.0	224	79	74	12	5	64	130	1.07	.229
8 LarryL DierkerDierker P 8 ‌ ‌ ‌	1970	HOU	16	12	3.87	37	36	17	2	1	1	269.2	263	124	116	31	6	82	191	1.28	.254
9 DonD WilsonWilson P 9 ‌ ‌ ‌	1971	HOU	16	10	2.45	35	34	18	3	0	0	268.0	195	80	73	15	7	79	180	1.02	.202
10 J.R.J RichardRichard P 10 ‌ ‌ ‌	1977	HOU	18	12	2.97	36	36	13	3	0	0	267.0	212	94	88	18	0	104	214	1.18	.218
11 JoeJ NiekroNiekro P 11 ‌ ‌ ‌	1983	HOU	15	14	3.48	38	38	9	1	0	0	263.2	238	115	102	15	3	101	152	1.29	.241
11 JoeJ NiekroNiekro P 11 ‌ ‌ ‌	1979	HOU	21	11	3.00	38	38	11	5	0	0	263.2	221	102	88	17	7	107	119	1.24	.228
13 BobB KnepperKnepper P 13 ‌ ‌ ‌	1986	HOU	17	12	3.14	40	38	8	5	0	0	258.0	232	100	90	19	4	62	143	1.14	.242
14 JoeJ NiekroNiekro P 14 ‌ ‌ ‌	1980	HOU	20	12	3.55	37	36	11	2	0	0	256.0	268	119	101	12	4	79	127	1.36	.270
15 DarrylD KileKile P 15 ‌ ‌ ‌	1997	HOU	19	7	2.57	34	34	6	4	0	0	255.2	208	87	73	19	10	94	205	1.18	.225
16 DaveD GiustiGiusti P 16 ‌ ‌ ‌	1968	HOU	11	14	3.19	37	34	12	2	1	--	251.0	226	95	89	15	4	67	186	1.17	.239
17 NolanN Ryan Jr.Ryan P 17 ‌ ‌ ‌	1982	HOU	16	12	3.16	35	35	10	3	0	0	250.1	196	100	88	20	8	109	245	1.22	.213
18 DaveD RobertsRoberts P 18 ‌ ‌ ‌	1973	HOU	17	11	2.85	39	36	12	6	0	1	249.1	264	92	79	15	2	62	119	1.31	.271
19 JoeJ NiekroNiekro P 19 ‌ ‌ ‌	1984	HOU	16	12	3.04	38	38	6	1	0	0	248.1	223	104	84	16	4	89	127	1.26	.241
20 MikeM ScottScott P 20 ‌ ‌ ‌	1987	HOU	16	13	3.23	36	36	8	3	0	0	247.2	199	94	89	21	4	79	233	1.12	.217
21 JoseJ LimaLima P 21 ‌ ‌ ‌	1999	HOU	21	10	3.58	35	35	3	0	0	0	246.1	256	108	98	30	2	44	187	1.22	.265
21 MikeM CuellarCuellar P 21 ‌ ‌ ‌	1967	HOU	16	11	3.03	36	32	16	3	1	--	246.1	233	99	83	16	1	63	203	1.20	.248
23 DennyD LemasterLemaster P 23 ‌ ‌ ‌	1969	HOU	13	17	3.16	38	37	11	1	1	1	244.2	232	97	86	20	1	72	173	1.24	.246
24 TurkT FarrellFarrell P 24 ‌ ‌ ‌	1962	HOU	10	20	3.02	43	29	11	2	4	--	241.2	210	91	81	21	5	55	203	1.10	.233
24 RoyR OswaltOswalt P 24 ‌ ‌ ‌	2005	HOU	20	12	2.94	35	35	4	1	0	0	241.2	243	85	79	18	8	48	184	1.20	.262

Data validation provided by Elias Sports Bureau, the Official Statistician of Major League Baseball