best winning% with a minimum of 100 decisions as a pitcher in the 1970s

Between the 1970 and 1979 seasons, Don Gullett had the best win percentage with 100+ decisions, at .686.

	NAME	W%	DEC	W	L	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	Don Gullett D. Gullett	.686	159	109	50	266	186	3.11	921	44	14	11	1390.0	1,205	481	528	115	501	12	35	42	5,763	36	5.96	3.24	1.84	0.74	16.0	8.7	1.23	.259	3.42	88	3.42	97	7.80	17.9
2	John Candelaria J. Candelaria	.648	108	70	38	146	141	2.94	561	32	7	2	967.1	857	316	354	99	236	14	4	28	3,941	7	5.22	2.20	2.38	0.92	14.2	6.0	1.13	.250	3.29	80	3.60	97	7.97	12.2
3	Pedro Borbon P. Borbon	.647	102	66	36	561	4	3.40	385	0	0	79	966.2	1,026	365	395	55	230	24	268	79	4,053	21	3.58	2.14	1.67	0.51	9.5	5.7	1.30	.289	3.68	95	3.32	93	9.55	26.6
4	Jim Palmer J. Palmer	.644	289	186	103	355	352	2.58	1,559	175	44	2	2745.0	2,275	787	883	184	861	26	3	31	11,105	55	5.11	2.82	1.81	0.60	14.0	7.8	1.14	.247	2.90	73	3.28	90	7.46	110.6
5	Tom Seaver T. Seaver	.638	279	178	101	348	345	2.61	2,304	147	40	0	2652.1	2,105	768	843	190	741	28	2	65	10,607	64	7.82	2.51	3.11	0.64	21.7	7.0	1.07	.261	2.86	73	2.64	74	7.14	272
6	Catfish Hunter C. Hunter	.624	271	169	102	329	327	3.17	1,309	140	30	0	2399.0	2,047	846	936	257	606	34	2	31	9,702	33	4.91	2.27	2.16	0.96	13.5	6.2	1.11	.239	3.51	90	3.67	102	7.68	-26.2
7	Tommy John T. John	.613	217	133	84	294	282	3.09	1,029	74	20	1	1973.0	1,934	677	801	109	520	34	7	39	8,180	75	4.69	2.37	1.98	0.50	12.6	6.4	1.24	.281	3.65	85	3.11	84	8.82	133.7
8	Gary Nolan G. Nolan	.612	129	79	50	178	178	3.22	639	31	6	0	1189.1	1,105	425	457	107	262	6	0	35	4,849	17	4.84	1.98	2.44	0.81	13.2	5.4	1.15	.260	3.46	90	3.32	95	8.36	19.2
9	Clay Carroll C. Carroll	.610	100	61	39	447	11	2.63	385	0	0	106	766.1	731	224	257	36	252	16	248	65	3,191	17	4.52	2.96	1.53	0.42	12.1	7.9	1.28	.278	3.02	73	3.22	91	8.59	25.4
10	Luis Tiant L. Tiant	.607	234	142	92	322	285	3.42	1,229	120	28	3	2063.0	1,904	783	839	204	595	28	18	22	8,498	12	5.36	2.60	2.07	0.89	14.5	7.0	1.21	.264	3.66	86	3.59	92	8.31	68.8
11	Dennis Eckersley D. Eckersley	.606	127	77	50	171	155	3.12	855	60	13	3	1148.1	1,008	398	431	119	352	32	8	33	4,760	17	6.70	2.76	2.43	0.93	18.0	7.4	1.18	.261	3.38	79	3.51	88	7.90	61.2
12	Mike Cuellar M. Cuellar	.606	198	120	78	253	245	3.34	832	115	25	1	1741.0	1,605	646	723	158	525	7	4	27	7,152	34	4.30	2.71	1.58	0.82	11.6	7.3	1.22	.257	3.74	96	3.68	103	8.30	-22
13	Don Sutton D. Sutton	.601	276	166	110	352	349	3.07	1,767	117	39	2	2557.1	2,174	871	975	214	660	45	3	45	10,403	63	6.22	2.32	2.68	0.75	17.0	6.3	1.11	.254	3.43	87	3.11	88	7.65	121.3
14	Mike Flanagan M. Flanagan	.600	100	60	40	137	122	3.63	569	52	9	1	876.2	843	354	380	69	266	8	9	9	3,619	21	5.84	2.73	2.14	0.71	15.7	7.4	1.27	.286	3.90	98	3.33	87	8.65	51.4
15	Dave McNally D. McNally	.595	158	94	64	195	193	3.30	630	69	16	1	1363.2	1,280	500	536	111	402	31	1	36	5,610	26	4.16	2.65	1.57	0.73	11.2	7.2	1.23	.264	3.54	95	3.62	101	8.45	-7.7
16	Bill Lee B. Lee	.592	184	109	75	334	199	3.53	592	70	10	13	1673.1	1,801	657	747	147	466	20	46	24	7,096	18	3.18	2.51	1.27	0.79	8.3	6.6	1.35	.282	4.02	90	3.89	101	9.69	-3
17	J.R. Richard	.591	164	97	67	221	204	3.24	1,374	72	15	0	1492.1	1,162	538	594	71	730	17	3	14	6,236	90	8.29	4.40	1.88	0.43	22.0	11.7	1.27	.270	3.58	95	2.92	84	7.01	94.8
18	Vida Blue V. Blue	.587	264	155	109	330	327	3.07	1,600	124	32	1	2398.2	2,080	819	927	161	780	19	1	42	9,827	69	6.00	2.93	2.05	0.60	16.3	7.9	1.19	.264	3.48	88	3.12	87	7.80	125.1
19	Steve Carlton S. Carlton	.586	304	178	126	368	366	3.18	2,097	165	32	0	2747.0	2,413	971	1,103	238	960	31	0	87	11,361	81	6.87	3.15	2.18	0.78	18.5	8.4	1.23	.271	3.61	85	3.26	89	7.91	125.5
20	Dennis Leonard D. Leonard	.584	149	87	62	182	177	3.54	857	77	16	1	1316.2	1,242	518	585	112	385	42	2	19	5,463	45	5.86	2.63	2.23	0.77	15.7	7.0	1.24	.278	4.00	91	3.42	90	8.49	55.4
21	Gaylord Perry G. Perry	.580	317	184	133	369	368	2.92	1,907	197	36	1	2905.0	2,559	942	1,088	207	758	51	1	75	11,759	68	5.91	2.35	2.52	0.64	16.2	6.4	1.14	.266	3.37	80	3.02	83	7.93	199.6
22	Doug Rau D. Rau	.580	138	80	58	219	184	3.30	694	33	11	3	1250.2	1,245	459	502	97	378	28	17	14	5,269	10	4.99	2.72	1.84	0.70	13.2	7.2	1.30	.282	3.61	94	3.48	96	8.96	19.7
23	Frank Tanana F. Tanana	.580	157	91	66	193	187	2.93	1,120	85	24	0	1411.1	1,238	459	507	128	377	47	3	24	5,775	38	7.14	2.40	2.97	0.82	19.4	6.5	1.14	.271	3.23	82	3.11	85	7.89	88.7
24	Fergie Jenkins F. Jenkins	.578	308	178	130	360	354	3.38	1,841	184	33	0	2706.2	2,507	1,015	1,128	301	518	51	5	55	11,009	34	6.12	1.72	3.55	1.00	16.7	4.7	1.12	.266	3.75	86	3.29	86	8.34	158.8
25	Steve Busby S. Busby	.575	120	69	51	156	144	3.61	647	53	7	0	1018.1	944	409	453	70	414	23	6	22	4,306	24	5.72	3.66	1.56	0.62	15.0	9.6	1.33	.277	4.00	94	3.49	94	8.34	25.1