Joaquin Andujar, Mike Boddicker and Rick Sutcliffe were tied for winning the most games in 1984, with 20 wins.

	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	Joaquin Andujar J. Andujar	20	1984	STL	14	.588	36	36	3.34	147	12	4	0	261.1	218	97	104	20	70	7	0	13	1,052	6	5.06	2.41	2.10	0.69	14.0	6.7	1.10	.245	3.58	94	3.52	101	7.51	-1
2	Mike Boddicker M. Boddicker	20	1984	BAL	11	.645	34	34	2.79	128	16	4	0	261.1	218	81	95	23	81	5	0	1	1,051	6	4.41	2.79	1.58	0.79	12.2	7.7	1.14	.240	3.27	71	3.91	97	7.51	4.1
3	Rick Sutcliffe R. Sutcliffe	20	1984	TOT	6	.769	35	35	3.64	213	9	3	0	244.2	234	99	113	16	85	3	0	3	1,030	6	7.84	3.13	2.51	0.59	20.7	8.3	1.30	.306	4.16	92	2.95	75	8.61	24.4
4	Bert Blyleven B. Blyleven	19	1984	CLE	7	.731	33	32	2.87	170	12	4	0	245.0	204	78	86	19	74	6	0	4	1,004	6	6.24	2.72	2.30	0.70	16.9	7.4	1.13	.252	3.16	71	3.36	83	7.49	18.8
5	Jack Morris J. Morris	19	1984	DET	11	.633	35	35	3.60	148	9	1	0	240.1	221	96	108	20	87	2	0	7	1,015	14	5.54	3.26	1.70	0.75	14.6	8.6	1.28	.265	4.04	92	3.72	91	8.28	9.9
6	Dan Petry D. Petry	18	1984	DET	8	.692	35	35	3.24	144	7	2	0	233.1	231	84	94	21	66	3	0	4	968	7	5.55	2.55	2.18	0.81	14.9	6.8	1.27	.286	3.63	83	3.59	88	8.91	13.2
7	Mario Soto M. Soto	18	1984	CIN	7	.720	33	33	3.53	185	13	0	0	237.1	181	93	102	26	87	5	0	6	971	3	7.02	3.30	2.13	0.99	19.1	9.0	1.13	.232	3.87	95	3.79	104	6.86	-3.8
8	Frank Viola F. Viola	18	1984	MIN	12	.600	35	35	3.21	149	10	4	0	257.2	225	92	101	28	73	4	0	1	1,047	6	5.20	2.55	2.04	0.98	14.2	7.0	1.16	.248	3.53	77	3.91	98	7.86	2.8
9	Doyle Alexander D. Alexander	17	1984	TOR	6	.739	36	35	3.13	139	11	2	0	261.2	238	91	99	21	59	3	1	1	1,061	2	4.78	2.03	2.36	0.72	13.1	5.6	1.14	.259	3.41	75	3.45	85	8.19	17.4
10	Bud Black B. Black	17	1984	KCR	12	.586	35	35	3.12	140	8	1	0	257.0	226	89	99	22	64	4	0	2	1,045	2	4.90	2.24	2.19	0.77	13.4	6.1	1.13	.250	3.47	78	3.58	91	7.91	10
11	Dwight Gooden D. Gooden	17	1984	NYM	9	.654	31	31	2.60	276	7	3	0	218.0	161	63	72	7	73	2	0	2	879	3	11.39	3.01	3.78	0.29	31.4	8.3	1.07	.296	2.97	74	1.68	48	6.65	44.6
12	Mark Langston M. Langston	17	1984	SEA	10	.630	35	33	3.40	204	5	2	0	225.0	188	85	99	16	118	8	0	5	965	4	8.16	4.72	1.73	0.64	21.1	12.2	1.36	.278	3.96	84	3.55	85	7.52	15.4
13	Milt Wilcox M. Wilcox	17	1984	DET	8	.680	33	33	4.00	119	0	0	0	193.2	183	86	99	13	66	8	0	5	814	3	5.53	3.07	1.80	0.60	14.6	8.1	1.29	.280	4.60	102	3.55	87	8.50	11.6
14	Charlie Hough C. Hough	16	1984	TEX	14	.533	36	36	3.76	164	17	1	0	266.0	260	111	127	26	94	9	0	3	1,133	12	5.55	3.18	1.74	0.88	14.5	8.3	1.33	.279	4.30	95	3.96	101	8.80	-1.1
15	Joe Niekro J. Niekro	16	1984	HOU	12	.571	38	38	3.04	127	6	1	0	248.1	223	84	104	16	89	4	0	4	1,027	12	4.60	3.23	1.43	0.58	12.4	8.7	1.26	.262	3.77	88	3.70	109	8.08	-9.9
16	Phil Niekro P. Niekro	16	1984	NYY	8	.667	32	31	3.09	136	5	1	0	215.2	219	74	85	15	76	3	1	0	916	2	5.68	3.17	1.79	0.63	14.8	8.3	1.37	.297	3.55	80	3.50	89	9.14	10.3
17	Dave Stieb D. Stieb	16	1984	TOR	8	.667	35	35	2.83	198	11	2	0	267.0	215	84	87	19	88	11	0	1	1,085	2	6.67	2.97	2.25	0.64	18.2	8.1	1.13	.255	2.93	68	3.32	82	7.25	21.8
18	Bob Knepper B. Knepper	15	1984	HOU	10	.600	35	34	3.20	140	11	3	0	233.2	223	83	93	26	55	1	0	5	954	2	5.39	2.12	2.55	1.00	14.7	5.8	1.19	.269	3.58	93	3.73	110	8.59	-10.1
19	Charlie Lea C. Lea	15	1984	MON	10	.600	30	30	2.89	123	8	0	0	224.1	198	72	82	19	68	3	0	3	918	6	4.93	2.73	1.81	0.76	13.4	7.4	1.19	.254	3.29	82	3.72	104	7.94	-3.8
20	Scott McGregor S. McGregor	15	1984	BAL	12	.556	30	30	3.94	67	10	3	0	196.1	216	86	93	18	54	5	0	2	840	1	3.07	2.48	1.24	0.83	8.0	6.4	1.38	.284	4.26	101	4.17	103	9.90	-2.5
21	Tom Seaver T. Seaver	15	1984	CWS	11	.577	34	33	3.95	131	10	4	0	236.2	216	104	108	27	61	2	1	3	978	5	4.98	2.32	2.15	1.03	13.4	6.2	1.17	.250	4.11	97	3.94	98	8.21	2
22	Eric Show E. Show	15	1984	SDP	9	.625	32	32	3.40	104	3	1	0	206.2	175	78	88	18	88	4	0	4	862	6	4.53	3.83	1.18	0.78	12.1	10.2	1.27	.242	3.83	98	4.22	117	7.62	-14.1
23	Mike Smithson M. Smithson	15	1984	MIN	13	.536	36	36	3.68	144	10	1	0	252.0	246	103	113	35	54	8	0	7	1,047	7	5.14	1.93	2.67	1.25	13.8	5.2	1.19	.262	4.04	88	4.16	104	8.79	-4.2
24	Frank Tanana F. Tanana	15	1984	TEX	15	.500	35	35	3.25	141	9	1	0	246.1	234	89	117	30	81	6	0	3	1,054	12	5.15	2.96	1.74	1.10	13.4	7.7	1.28	.256	4.27	82	4.26	108	8.55	-9.4
25	Mike Witt M. Witt	15	1984	CAL	11	.577	34	34	3.47	196	9	2	0	246.2	227	95	103	17	84	5	0	3	1,032	7	7.15	3.06	2.33	0.62	19.0	8.1	1.26	.288	3.76	88	3.15	77	8.28	25.6