most wins in a season by a cub pitcher since 1977

Since 1977, Jake Arrieta has won the most games for the Cubs in a season, with 22 wins in 2015.

	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	Jake Arrieta J. Arrieta	22	2015	CHC	6	.786	33	33	1.77	236	4	3	0	229.0	150	45	52	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
2	Jon Lieber J. Lieber	20	2001	CHC	6	.769	34	34	3.80	148	5	1	0	232.1	226	98	104	25	41	7	0	4	958	4	5.73	1.59	3.61	0.97	15.4	4.3	1.15	.273	4.03	89	3.79	86	8.75	15.8
3	Greg Maddux G. Maddux	20	1992	CHC	11	.645	35	35	2.18	199	9	4	0	268.0	201	65	68	7	70	14	0	7	1,061	5	6.68	2.35	2.84	0.24	18.8	6.6	1.01	.252	2.28	61	2.57	71	6.75	30.5
4	Rick Reuschel R. Reuschel	20	1977	CHC	10	.667	39	37	2.79	166	8	4	1	252.0	233	78	84	13	74	5	2	11	1,030	9	5.93	2.64	2.24	0.46	16.1	7.2	1.22	.285	3.00	65	3.02	72	8.32	31.3
5	Jon Lester J. Lester	19	2016	CHC	5	.792	32	32	2.44	197	2	0	0	202.2	154	55	57	21	52	6	0	0	796	4	8.75	2.31	3.79	0.93	24.7	6.5	1.02	.256	2.53	59	3.40	82	6.84	16.3
6	Kevin Tapani K. Tapani	19	1998	CHC	9	.679	35	34	4.85	136	2	2	0	219.0	244	118	120	30	62	5	0	4	945	7	5.59	2.55	2.19	1.23	14.4	6.6	1.40	.301	4.93	114	4.59	106	10.03	-5.8
7	Greg Maddux G. Maddux	19	1989	CHC	12	.613	35	35	2.95	135	7	1	0	238.1	222	78	90	13	82	6	0	13	1,002	5	5.10	3.10	1.65	0.49	13.5	8.2	1.28	.273	3.40	80	3.44	93	8.38	7.2
8	Jon Lester J. Lester	18	2018	CHC	6	.750	32	32	3.32	149	0	0	0	181.2	174	67	75	24	64	6	0	1	761	4	7.38	3.17	2.33	1.19	19.6	8.4	1.31	.290	3.72	83	4.39	109	8.62	-7.6
9	Jake Arrieta J. Arrieta	18	2016	CHC	8	.692	31	31	3.10	190	1	1	0	197.1	138	68	72	16	76	6	0	1	795	16	8.67	3.47	2.50	0.73	23.9	9.6	1.08	.241	3.28	75	3.51	85	6.29	13.4
10	Carlos Zambrano C. Zambrano	18	2007	CHC	13	.581	34	34	3.95	177	1	0	0	216.1	187	95	100	23	101	14	0	4	925	3	7.36	4.20	1.75	0.96	19.1	10.9	1.33	.269	4.16	86	4.57	101	7.78	-0.8
11	Mark Prior M. Prior	18	2003	CHC	6	.750	30	30	2.43	245	3	1	0	211.1	183	57	67	15	50	9	0	4	863	9	10.43	2.13	4.90	0.64	28.4	5.8	1.10	.309	2.85	57	2.47	56	7.79	44.5
12	Mike Bielecki M. Bielecki	18	1989	CHC	7	.720	33	33	3.14	147	4	3	0	212.1	187	74	82	16	81	0	0	8	882	9	6.23	3.43	1.81	0.68	16.7	9.2	1.26	.268	3.48	85	3.49	94	7.93	5.1
13	Greg Maddux G. Maddux	18	1988	CHC	8	.692	34	34	3.18	140	9	3	0	249.0	230	88	97	13	81	9	0	16	1,047	3	5.06	2.93	1.73	0.47	13.4	7.7	1.25	.270	3.51	87	3.40	94	8.31	6.1
14	Rick Sutcliffe R. Sutcliffe	18	1987	CHC	10	.643	34	34	3.68	174	6	1	0	237.1	223	97	106	24	106	4	0	14	1,012	9	6.60	4.02	1.64	0.91	17.2	10.5	1.39	.283	4.02	84	4.10	96	8.46	5.2
15	Rick Reuschel R. Reuschel	18	1979	CHC	12	.600	36	36	3.62	125	5	1	0	239.0	251	96	104	16	75	10	0	8	1,021	5	4.71	2.82	1.67	0.60	12.2	7.3	1.36	.296	3.92	88	3.61	91	9.45	9.4
16	Ryan Dempster R. Dempster	17	2008	CHC	6	.739	33	33	2.96	187	1	0	0	206.2	174	68	75	14	76	7	0	1	856	5	8.14	3.31	2.46	0.61	21.8	8.9	1.21	.280	3.27	66	3.40	77	7.58	22.7
17	Ted Lilly T. Lilly	17	2008	CHC	9	.654	34	34	4.09	184	0	0	0	204.2	187	93	96	32	64	7	0	2	861	4	8.09	2.81	2.88	1.41	21.4	7.4	1.23	.270	4.22	91	4.40	100	8.22	0.2
18	Justin Steele J. Steele	16	2023	CHC	5	.762	30	30	3.06	176	0	0	0	173.1	167	59	71	14	36	7	0	0	716	9	9.14	1.87	4.89	0.73	24.6	5.0	1.17	.317	3.69	72	3.01	70	8.67	24.9
19	Kyle Hendricks K. Hendricks	16	2016	CHC	8	.667	31	30	2.13	170	2	1	0	190.0	142	45	53	15	44	8	0	3	745	5	8.05	2.08	3.86	0.71	22.8	5.9	0.98	.250	2.51	51	3.20	78	6.73	19.6
20	Carlos Zambrano C. Zambrano	16	2006	CHC	7	.696	33	33	3.41	210	0	0	0	214.0	162	81	91	20	115	9	0	4	917	9	8.83	4.84	1.83	0.84	22.9	12.5	1.29	.252	3.83	73	4.13	89	6.81	11.5
21	Greg Maddux G. Maddux	16	2004	CHC	11	.593	33	33	4.02	151	2	1	0	212.2	218	95	103	35	33	9	0	4	872	2	6.39	1.40	4.58	1.48	17.3	3.8	1.18	.284	4.36	93	4.35	97	9.23	3.3
22	Carlos Zambrano C. Zambrano	16	2004	CHC	8	.667	31	31	2.75	188	1	1	0	209.2	174	64	73	14	81	20	0	4	887	6	8.07	3.48	2.32	0.60	21.2	9.1	1.22	.274	3.13	63	3.56	79	7.47	21.4
23	Mike Morgan M. Morgan	16	1992	CHC	8	.667	34	34	2.55	123	6	1	0	240.0	203	68	80	14	79	3	0	10	966	11	4.61	2.96	1.56	0.53	12.7	8.2	1.18	.253	3.00	71	3.53	98	7.61	2.4
24	Rick Sutcliffe R. Sutcliffe	16	1989	CHC	11	.593	35	34	3.66	153	5	1	0	229.0	202	93	98	18	69	2	0	8	938	12	6.01	2.71	2.22	0.71	16.3	7.4	1.18	.264	3.85	100	3.37	91	7.94	8.6
25	Rick Sutcliffe R. Sutcliffe	16	1984	CHC	1	.941	20	20	2.69	155	7	3	0	150.1	123	45	53	9	39	1	0	0	602	3	9.28	2.33	3.97	0.54	25.7	6.5	1.08	.286	3.17	70	2.28	60	7.36	24.1