Between the 1977 and 1978 seasons, Ron Guidry, Dennis Leonard and Jim Palmer were tied for winning the most games, with 41 wins.

Interpreted as:

most pitching regular-season wins by a player between 1977 to 1978

	NAME	W	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	Ron Guidry R. Guidry	41	10	.804	66	60	2.21	424	25	14	1	484.1	361	119	133	25	137	1	4	3	1,907	13	7.88	2.55	3.09	0.46	22.2	7.2	1.03	.255	2.47	58	2.42	62	6.71	78.9
2	Dennis Leonard D. Leonard	41	29	.586	78	77	3.19	427	41	9	1	587.1	529	208	242	45	157	17	1	7	2,404	26	6.54	2.41	2.72	0.69	17.8	6.5	1.17	.275	3.71	81	3.08	80	8.11	51.8
3	Jim Palmer J. Palmer	41	23	.641	77	77	2.69	331	41	9	0	615.0	509	184	200	43	196	4	0	2	2,466	12	4.84	2.87	1.69	0.63	13.4	7.9	1.15	.246	2.93	73	3.46	91	7.45	23.8
4	Steve Carlton S. Carlton	39	23	.629	70	70	2.73	359	29	5	0	530.1	457	161	190	55	152	7	0	12	2,141	6	6.09	2.58	2.36	0.93	16.8	7.1	1.15	.256	3.22	72	3.55	94	7.76	14.2
5	Tommy John T. John	37	17	.685	64	61	3.03	247	18	3	1	433.1	455	146	177	23	103	8	3	10	1,818	12	5.13	2.14	2.40	0.48	13.6	5.7	1.29	.301	3.68	83	2.97	79	9.45	37.9
6	Tom Seaver T. Seaver	37	20	.649	69	69	2.73	422	27	8	0	521.0	417	158	175	45	155	0	0	17	2,106	13	7.29	2.68	2.72	0.78	20.0	7.4	1.10	.251	3.02	73	3.05	82	7.20	39.3
7	Ed Figueroa E. Figueroa	36	20	.643	67	67	3.27	196	24	4	0	492.1	461	179	198	41	152	6	0	5	2,037	9	3.58	2.78	1.29	0.75	9.6	7.5	1.25	.256	3.62	86	3.90	100	8.43	-0.9
8	Gaylord Perry G. Perry	36	18	.667	71	71	3.03	331	18	6	0	498.2	480	168	204	30	122	7	0	12	2,041	7	5.97	2.20	2.71	0.54	16.2	6.0	1.21	.290	3.68	82	2.88	78	8.66	45.4
9	J.R. Richard	36	23	.610	72	72	3.04	517	29	6	0	542.1	404	183	198	30	245	2	0	5	2,231	22	8.58	4.07	2.11	0.50	23.2	11.0	1.20	.260	3.29	89	2.83	80	6.70	43.1
10	Dave Goltz D. Goltz	35	21	.625	68	68	2.99	302	32	4	0	523.1	493	174	201	35	158	3	0	5	2,166	13	5.19	2.72	1.91	0.60	13.9	7.3	1.24	.275	3.46	74	3.30	83	8.48	39
11	Phil Niekro P. Niekro	35	38	.479	88	85	3.45	510	42	6	1	664.2	610	255	295	42	266	21	2	17	2,817	28	6.91	3.60	1.92	0.57	18.1	9.4	1.32	.287	3.99	84	3.23	80	8.26	56.2
12	Paul Splittorff P. Splittorff	35	19	.648	76	75	3.54	175	19	4	0	491.0	487	193	217	33	143	5	0	4	2,049	8	3.21	2.62	1.22	0.60	8.5	7.0	1.28	.268	3.98	90	3.71	96	8.93	8
13	Dennis Eckersley D. Eckersley	34	21	.618	68	68	3.25	353	28	6	0	515.2	472	186	199	61	125	14	0	19	2,127	6	6.16	2.18	2.82	1.06	16.6	5.9	1.16	.261	3.47	80	3.63	90	8.24	22.9
14	Mike Flanagan M. Flanagan	34	25	.576	76	73	3.85	316	32	4	1	516.1	506	221	228	39	157	5	2	7	2,134	13	5.51	2.74	2.01	0.68	14.8	7.4	1.28	.289	3.97	105	3.34	88	8.82	26.3
15	Ross Grimsley R. Grimsley	34	21	.618	70	70	3.46	137	30	5	0	481.1	467	185	208	41	141	3	0	8	1,991	6	2.56	2.64	0.97	0.77	6.9	7.1	1.26	.255	3.89	95	4.08	111	8.73	-24.2
16	Rick Reuschel R. Reuschel	34	25	.576	74	72	3.09	281	17	5	1	494.2	468	170	182	29	128	10	2	19	2,037	22	5.11	2.33	2.20	0.53	13.8	6.3	1.20	.276	3.31	76	3.12	79	8.51	45.5
17	Frank Tanana F. Tanana	33	21	.611	64	64	3.09	342	30	11	0	480.1	440	165	180	45	121	21	0	9	1,987	13	6.41	2.27	2.83	0.84	17.2	6.1	1.17	.271	3.37	83	3.33	87	8.24	26.8
18	Mike Torrez M. Torrez	33	26	.559	71	71	3.92	222	32	4	0	493.1	507	215	235	42	185	10	0	11	2,116	11	4.05	3.38	1.20	0.77	10.5	8.7	1.40	.281	4.29	99	4.04	102	9.25	-4
19	Vida Blue V. Blue	32	29	.525	73	73	3.33	328	25	5	0	537.2	517	199	225	35	156	1	0	9	2,226	16	5.49	2.61	2.10	0.59	14.7	7.0	1.25	.283	3.77	89	3.16	84	8.65	35
20	John Candelaria J. Candelaria	32	16	.667	63	62	2.75	227	9	2	1	419.2	388	128	137	44	99	7	1	8	1,713	4	4.87	2.12	2.29	0.94	13.3	5.8	1.16	.257	2.94	73	3.70	97	8.32	4.7
21	Larry Christenson L. Christenson	32	20	.615	67	67	3.64	249	14	4	0	447.1	438	181	203	37	116	8	0	8	1,870	13	5.01	2.33	2.15	0.74	13.3	6.2	1.24	.275	4.08	96	3.44	91	8.81	16.4
22	Bob Forsch B. Forsch	31	24	.564	69	69	3.59	209	15	5	0	451.0	415	180	207	35	166	8	0	11	1,896	17	4.17	3.31	1.26	0.70	11.0	8.8	1.29	.257	4.13	96	3.89	108	8.28	-15.5
23	Burt Hooton B. Hooton	31	17	.646	64	63	2.66	257	16	5	1	459.1	380	136	148	31	121	3	1	9	1,839	8	5.04	2.37	2.12	0.61	14.0	6.6	1.09	.245	2.90	73	3.22	86	7.45	27.3
24	Dennis Martinez D. Martinez	30	18	.625	82	51	3.74	249	20	2	4	443.0	414	184	207	30	157	11	19	9	1,849	13	5.06	3.19	1.59	0.61	13.5	8.5	1.29	.274	4.21	102	3.53	93	8.41	12.7
25	Steve Rogers S. Rogers	30	26	.536	70	69	2.83	332	28	5	1	520.2	458	164	186	28	145	7	1	5	2,106	15	5.74	2.51	2.29	0.48	15.8	6.9	1.16	.270	3.22	77	2.96	81	7.92	41.5