Since 1960, Don Sutton has the most quality starts, with 483.

Interpreted as:

MLB regular-season quality start leaders since 1960

	NAME	QS	G	W	L	W%	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	H/9
1	Don Sutton D. Sutton	483	774	324	256	.559	756	3.26	3,574	178	58	5	5282.1	4,692	1,914	2,104	472	1,343	82	12	103	21,631	112	6.09	2.29	2.66	0.80	16.5	6.2	1.14	.261	3.58	7.99
2	Nolan Ryan N. Ryan	481	807	324	292	.526	773	3.19	5,714	222	61	3	5386.0	3,923	1,911	2,178	321	2,795	158	13	78	22,575	277	9.55	4.67	2.04	0.54	25.3	12.4	1.25	.265	3.64	6.56
3	Greg Maddux G. Maddux	480	744	355	227	.610	740	3.16	3,371	109	35	0	5008.1	4,726	1,756	1,981	353	999	137	3	177	20,421	70	6.06	1.80	3.37	0.63	16.5	4.9	1.14	.281	3.56	8.49
4	Roger Clemens R. Clemens	465	709	354	184	.658	707	3.12	4,672	118	46	0	4916.2	4,185	1,707	1,885	363	1,580	159	0	63	20,240	143	8.55	2.89	2.96	0.66	23.1	7.8	1.17	.284	3.45	7.66
5	Tom Seaver T. Seaver	454	656	311	205	.603	647	2.86	3,640	231	61	1	4783.0	3,971	1,521	1,674	380	1,390	76	6	117	19,369	125	6.85	2.62	2.62	0.72	18.8	7.2	1.12	.259	3.15	7.47
6	Gaylord Perry G. Perry	453	777	314	265	.542	690	3.11	3,534	303	53	10	5350.0	4,938	1,846	2,128	399	1,378	108	33	163	21,953	160	5.95	2.32	2.56	0.67	16.1	6.3	1.18	.275	3.58	8.31
7	Steve Carlton S. Carlton	447	741	329	244	.574	709	3.22	4,136	254	55	2	5217.2	4,672	1,864	2,130	414	1,833	53	13	150	21,682	183	7.13	3.16	2.26	0.71	19.1	8.5	1.25	.279	3.67	8.06
8	Phil Niekro P. Niekro	442	864	318	274	.537	716	3.35	3,342	245	45	29	5404.0	5,044	2,012	2,337	482	1,809	123	83	86	22,677	227	5.57	3.01	1.85	0.80	14.7	8.0	1.27	.270	3.89	8.40
9	Tom Glavine T. Glavine	436	682	305	203	.600	682	3.54	2,607	56	25	0	4413.1	4,298	1,734	1,900	356	1,500	66	0	145	18,604	65	5.32	3.06	1.74	0.73	14.0	8.1	1.31	.280	3.87	8.76
10	Tommy John T. John	431	760	288	231	.555	700	3.34	2,245	162	46	3	4710.0	4,783	1,749	2,017	302	1,259	98	22	102	19,691	188	4.29	2.41	1.78	0.58	11.4	6.4	1.28	.284	3.85	9.14
11	Bert Blyleven B. Blyleven	429	692	287	250	.534	685	3.31	3,701	242	60	0	4970.0	4,632	1,830	2,029	430	1,322	155	3	71	20,492	114	6.70	2.39	2.80	0.78	18.1	6.5	1.20	.282	3.67	8.39
12	Randy Johnson R. Johnson	403	618	303	166	.646	603	3.29	4,875	100	37	2	4135.1	3,346	1,513	1,703	411	1,497	190	7	37	17,067	109	10.61	3.26	3.26	0.89	28.6	8.8	1.17	.291	3.71	7.28
13	Frank Tanana F. Tanana	365	638	240	236	.504	616	3.66	2,773	143	34	1	4188.1	4,063	1,702	1,910	448	1,255	129	10	116	17,641	119	5.96	2.70	2.21	0.96	15.7	7.1	1.27	.277	4.10	8.73
14	Jim Kaat J. Kaat	365	895	283	235	.546	623	3.44	2,460	180	31	17	4525.0	4,613	1,731	2,029	394	1,079	120	102	117	18,997	128	4.89	2.15	2.28	0.78	12.9	5.7	1.26	.282	4.04	9.18
15	Justin Verlander J. Verlander	359	555	266	158	.627	555	3.32	3,553	26	9	0	3567.2	3,046	1,317	1,428	371	1,004	121	0	28	14,607	99	8.96	2.53	3.54	0.94	24.3	6.9	1.14	.280	3.60	7.68
16	Fergie Jenkins F. Jenkins	358	664	284	226	.557	594	3.34	3,191	267	49	7	4500.2	4,142	1,669	1,853	484	997	84	37	117	18,404	62	6.38	1.99	3.20	0.97	17.3	5.4	1.14	.268	3.71	8.28
17	Jamie Moyer J. Moyer	341	696	269	209	.563	638	4.25	2,441	33	10	0	4074.0	4,231	1,926	2,076	522	1,155	146	15	69	17,356	57	5.39	2.55	2.11	1.15	14.1	6.7	1.32	.283	4.59	9.35
18	Rick Reuschel R. Reuschel	337	557	214	191	.528	529	3.37	2,015	102	26	5	3548.1	3,588	1,330	1,494	221	935	88	16	117	14,888	89	5.11	2.37	2.16	0.56	13.5	6.3	1.27	.290	3.79	9.10
19	Jim Palmer J. Palmer	337	558	268	152	.638	521	2.86	2,212	211	53	4	3948.0	3,349	1,253	1,395	303	1,311	38	15	37	16,117	87	5.04	2.99	1.69	0.69	13.7	8.1	1.18	.249	3.18	7.63
20	Mike Mussina M. Mussina	330	537	270	153	.638	536	3.68	2,813	57	23	0	3562.2	3,460	1,458	1,559	376	785	60	0	29	14,593	71	7.11	1.98	3.58	0.95	19.3	5.4	1.19	.292	3.94	8.74
21	Dennis Martinez D. Martinez	328	692	245	193	.559	562	3.70	2,149	122	30	8	3999.2	3,897	1,643	1,835	372	1,165	122	51	70	16,754	84	4.84	2.62	1.84	0.84	12.8	7.0	1.27	.272	4.13	8.77
22	Jerry Koosman J. Koosman	328	612	222	209	.515	527	3.36	2,556	140	33	17	3839.1	3,635	1,433	1,608	290	1,198	71	43	121	15,996	89	5.99	2.81	2.13	0.68	16.0	7.5	1.26	.282	3.77	8.52
23	Bob Gibson B. Gibson	323	515	248	169	.595	473	2.91	3,069	253	55	6	3808.2	3,202	1,230	1,385	253	1,297	101	18	116	15,733	105	7.25	3.06	2.37	0.60	19.5	8.2	1.18	.268	3.27	7.57
24	Claude Osteen C. Osteen	320	536	196	195	.501	488	3.29	1,606	140	40	1	3449.0	3,456	1,262	1,425	247	928	45	23	92	14,371	64	4.19	2.42	1.73	0.64	11.2	6.5	1.27	.278	3.72	9.02
25	CC Sabathia	319	561	251	161	.609	560	3.74	3,093	38	12	0	3577.1	3,404	1,485	1,623	382	1,099	123	0	44	14,989	74	7.78	2.76	2.81	0.96	20.6	7.3	1.26	.294	4.08	8.56