most wins in a season by a pit pitcher since 1980

Since 1980, Doug Drabek has won the most games for the Pirates in a season, with 22 wins in 1990.

	NAME	W	SEASON	TM	L	W%	G	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	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	Doug Drabek D. Drabek	22	1990	PIT	6	.786	33	33	2.76	131	9	3	0	231.1	190	71	78	15	56	3	0	2	918	6	5.10	2.18	2.34	0.58	14.3	6.1	1.06	.245	3.03	75	3.27	87	7.39	12.2
2	John Smiley J. Smiley	20	1991	PIT	8	.714	33	32	3.08	129	2	1	0	207.2	194	71	78	17	44	3	0	0	836	3	5.59	1.91	2.93	0.74	15.4	5.3	1.15	.275	3.38	85	3.35	90	8.41	8.2
3	Gerrit Cole G. Cole	19	2015	PIT	8	.704	32	32	2.60	202	0	0	0	208.0	183	60	71	11	44	10	0	1	832	7	8.74	1.90	4.59	0.48	24.3	5.3	1.09	.304	3.07	68	2.65	70	7.92	26.9
4	Jim Bibby J. Bibby	19	1980	PIT	6	.760	35	34	3.32	144	6	1	0	238.1	210	88	95	20	88	6	1	3	985	5	5.44	3.32	1.64	0.76	14.6	8.9	1.25	.261	3.59	89	3.81	104	7.93	-3.1
5	Francisco Liriano F. Liriano	16	2013	PIT	8	.667	26	26	3.02	163	2	0	0	161.0	134	54	54	9	63	0	0	0	666	7	9.11	3.52	2.59	0.50	24.5	9.5	1.22	.290	3.02	84	2.92	80	7.49	13.3
6	A.J. Burnett	16	2012	PIT	10	.615	31	31	3.51	180	1	1	0	202.1	189	79	86	18	62	9	0	1	851	10	8.01	2.76	2.90	0.80	21.2	7.3	1.24	.294	3.83	92	3.52	93	8.41	5.9
7	Zane Smith Z. Smith	16	1991	PIT	10	.615	35	35	3.20	120	6	3	0	228.0	234	81	95	15	29	2	0	3	916	1	4.74	1.14	4.14	0.59	13.1	3.2	1.15	.292	3.75	89	3.06	83	9.24	16.4
8	Todd Ritchie T. Ritchie	15	1999	PIT	9	.625	28	26	3.49	107	2	0	0	172.2	169	67	79	17	54	4	0	3	716	7	5.58	2.81	1.98	0.89	14.9	7.5	1.29	.285	4.12	76	4.17	91	8.81	7.6
9	Doug Drabek D. Drabek	15	1992	PIT	11	.577	34	34	2.77	177	10	4	0	256.2	218	79	84	17	54	6	0	8	1,021	11	6.21	1.89	3.28	0.60	17.3	5.3	1.06	.262	2.95	80	2.96	86	7.64	13.8
10	Doug Drabek D. Drabek	15	1991	PIT	14	.517	35	35	3.07	142	5	2	0	234.2	245	80	92	16	62	3	0	6	977	5	5.45	2.38	2.29	0.61	14.5	6.3	1.31	.304	3.53	85	3.36	91	9.40	9.1
11	Doug Drabek D. Drabek	15	1988	PIT	7	.682	33	32	3.08	127	3	1	0	219.1	194	75	83	21	50	6	0	4	880	4	5.21	2.05	2.54	0.86	14.4	5.7	1.11	.256	3.41	90	3.61	102	7.96	-1.6
12	Rick Rhoden R. Rhoden	15	1986	PIT	12	.556	34	34	2.84	159	12	1	0	253.2	211	80	82	17	76	2	0	8	1,015	6	5.64	2.70	2.09	0.60	15.7	7.5	1.13	.255	2.91	76	3.30	87	7.49	13.4
13	John Candelaria J. Candelaria	15	1983	PIT	8	.652	33	32	3.23	157	2	0	0	197.2	191	71	73	15	45	2	0	3	797	3	7.15	2.05	3.49	0.68	19.7	5.6	1.19	.304	3.32	87	2.85	77	8.70	18.7
14	Larry McWilliams L. McWilliams	15	1983	PIT	8	.652	35	35	3.25	199	8	4	0	238.0	205	86	99	19	87	3	0	7	1,002	9	7.53	3.29	2.29	0.72	19.9	8.7	1.23	.268	3.74	88	3.24	87	7.75	12.3
15	Don Robinson D. Robinson	15	1982	PIT	13	.536	38	30	4.28	165	6	0	0	227.0	213	108	123	26	103	3	3	11	977	17	6.54	4.08	1.60	1.03	16.9	10.5	1.39	.275	4.88	118	4.14	115	8.44	-13.4
16	Jameson Taillon J. Taillon	14	2018	PIT	10	.583	32	32	3.20	179	2	1	0	191.0	179	68	69	20	46	6	0	4	785	2	8.43	2.17	3.89	0.94	22.8	5.9	1.18	.298	3.25	80	3.46	85	8.43	12.8
17	Trevor Williams T. Williams	14	2018	PIT	10	.583	31	31	3.11	126	1	1	0	170.2	146	59	64	15	55	4	0	3	701	4	6.64	2.90	2.29	0.79	18.0	7.8	1.18	.261	3.38	78	3.86	95	7.70	3.8
18	Tom Gorzelanny T. Gorzelanny	14	2007	PIT	10	.583	32	32	3.88	135	1	1	0	201.2	214	87	90	18	68	11	0	3	874	5	6.02	3.03	1.99	0.80	15.4	7.8	1.40	.305	4.02	89	4.23	95	9.55	4.8
19	Ian Snell I. Snell	14	2006	PIT	11	.560	32	32	4.74	169	0	0	0	186.0	198	98	104	29	74	2	0	4	813	8	8.18	3.58	2.28	1.40	20.8	9.1	1.46	.314	5.03	108	4.57	103	9.58	-3.1
20	Denny Neagle D. Neagle	14	1996	PIT	6	.700	27	27	3.05	131	1	0	0	182.2	186	62	67	21	34	3	0	2	745	2	6.45	1.68	3.85	1.03	17.6	4.6	1.20	.297	3.30	71	3.83	89	9.16	9.4
21	Randy Tomlin R. Tomlin	14	1992	PIT	9	.609	35	33	3.41	90	1	1	0	208.2	226	79	85	11	42	5	0	4	866	7	3.88	1.81	2.14	0.47	10.4	4.8	1.28	.299	3.67	98	3.27	95	9.75	3.7
22	Doug Drabek D. Drabek	14	1989	PIT	12	.538	35	34	2.80	123	8	5	0	244.1	215	76	83	21	69	3	1	3	994	3	4.53	2.54	1.78	0.77	12.4	6.9	1.16	.249	3.06	82	3.75	104	7.92	-4.2
23	Rick Reuschel R. Reuschel	14	1985	PIT	8	.636	31	26	2.27	138	9	1	1	194.0	153	49	58	7	52	3	4	10	773	4	6.40	2.41	2.65	0.32	17.9	6.7	1.06	.255	2.69	63	2.58	70	7.10	24
24	Rick Rhoden R. Rhoden	14	1984	PIT	9	.609	33	33	2.72	136	6	3	0	238.1	216	72	81	13	62	1	0	0	961	10	5.14	2.34	2.19	0.49	14.2	6.5	1.17	.271	3.06	74	3.12	87	8.16	12.6
25	Mitch Keller M. Keller	13	2023	PIT	9	.591	32	32	4.21	210	1	1	0	194.1	187	91	97	25	55	12	0	0	825	5	9.73	2.55	3.82	1.16	25.5	6.7	1.25	.310	4.49	94	3.80	87	8.66	12.5