Ron Perranoski has the most career pitcher wins per start, with 79.

Interpreted as:

most wins per start by a player

	NAME	W/GS	W	GS	L	W%	G	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 Perranoski R. Perranoski	79	79	1	74	.516	737	2.79	687	0	0	178	1174.2	1,097	364	442	50	468	24	458	121	5,023	28	5.26	3.59	1.47	0.38	13.7	9.3	1.33	.276	3.39	82	3.17	93	8.40	30.6
2	Mark Clear M. Clear	71	71	1	49	.592	481	3.85	804	0	0	83	804.1	674	344	397	60	554	35	337	45	3,614	49	9.00	6.20	1.45	0.67	22.2	15.3	1.53	.284	4.44	93	3.90	97	7.54	12.6
3	Mike Stanton M. Stanton	68	68	1	63	.519	1,178	3.92	895	0	0	84	1114.0	1,086	485	523	93	420	33	363	76	4,762	35	7.23	3.39	2.13	0.75	18.8	8.8	1.35	.299	4.23	90	3.74	86	8.77	77.6
4	David Robertson D. Robertson	66	66	1	46	.589	861	2.91	1,154	0	0	177	876.2	656	283	306	77	357	25	354	37	3,612	57	11.85	3.67	3.23	0.79	31.9	9.9	1.16	.290	3.14	70	2.94	69	6.73	123.6
5	Al Hrabosky A. Hrabosky	64	64	1	35	.646	545	3.10	548	0	0	97	722.0	619	249	284	50	315	13	307	58	3,056	36	6.83	3.93	1.74	0.62	17.9	10.3	1.29	.267	3.54	82	3.38	91	7.72	24.5
6	Paul Assenmacher P. Assenmacher	61	61	1	44	.581	884	3.53	807	0	0	56	855.2	817	336	371	73	315	22	275	78	3,664	31	8.49	3.31	2.56	0.77	22.0	8.6	1.32	.304	3.90	86	3.31	81	8.59	74.4
7	Todd Jones T. Jones	58	58	1	63	.479	982	3.97	868	0	0	319	1072.0	1,072	473	518	93	443	38	619	62	4,650	43	7.29	3.72	1.96	0.78	18.7	9.5	1.41	.305	4.35	89	3.94	90	9.00	55.4
8	Dave Smith D. Smith	53	53	1	53	.500	609	2.67	548	0	0	216	809.1	700	240	280	34	283	13	432	64	3,357	28	6.09	3.15	1.94	0.38	16.3	8.4	1.21	.269	3.11	77	3.03	87	7.78	40.2
9	Dale Murray D. Murray	53	53	1	50	.515	518	3.85	400	0	0	60	902.1	976	386	448	40	329	14	289	80	3,912	32	3.99	3.28	1.22	0.40	10.2	8.4	1.45	.299	4.47	102	3.49	93	9.73	26.4
10	Ed Roebuck E. Roebuck	52	52	1	31	.627	460	3.35	477	0	0	62	791.0	753	294	374	90	302	28	206	51	3,375	40	5.43	3.44	1.58	1.02	14.1	8.9	1.33	.268	4.26	88	4.02	107	8.57	-24
11	Fred Gladding F. Gladding	48	48	1	34	.585	450	3.13	394	0	0	109	601.0	566	209	237	38	223	27	278	45	2,552	35	5.90	3.34	1.77	0.57	15.4	8.7	1.31	.282	3.55	88	3.29	92	8.48	18.2
12	Jeff Montgomery J. Montgomery	46	46	1	52	.469	700	3.27	733	0	0	304	868.2	785	316	347	81	296	26	549	40	3,637	33	7.59	3.07	2.48	0.84	20.2	8.1	1.24	.281	3.60	73	3.58	84	8.13	63.5
13	Don McMahon D. McMahon	45	90	2	68	.570	874	2.96	1,003	0	0	152	1310.2	1,054	431	482	104	579	34	505	84	5,503	75	6.89	3.98	1.73	0.71	18.2	10.5	1.25	.251	3.31	84	3.43	97	7.24	14
14	Randy Moffitt R. Moffitt	43	43	1	52	.453	534	3.65	455	0	0	96	781.1	766	317	355	61	286	24	306	73	3,380	32	5.24	3.29	1.59	0.70	13.5	8.5	1.35	.276	4.09	99	3.65	102	8.82	-7.7
15	Larry Andersen L. Andersen	40	40	1	39	.506	699	3.15	758	0	0	49	995.1	932	348	402	58	311	17	267	64	4,171	21	6.85	2.81	2.44	0.52	18.2	7.5	1.25	.289	3.63	83	3.00	79	8.43	83.9
16	John Axford J. Axford	38	38	1	34	.528	544	3.90	589	0	0	144	525.2	485	228	249	50	261	16	286	19	2,305	45	10.08	4.47	2.26	0.86	25.6	11.3	1.42	.313	4.26	96	3.67	91	8.30	21.8
17	Felix Rodriguez F. Rodriguez	38	38	1	26	.594	563	3.71	512	0	0	11	586.1	526	242	256	50	283	32	167	19	2,544	32	7.86	4.34	1.81	0.77	20.1	11.1	1.38	.286	3.93	88	4.04	94	8.07	16.5
18	Joakim Soria J. Soria	36	36	1	45	.444	773	3.11	831	0	0	229	763.0	633	264	279	67	231	27	427	18	3,146	33	9.80	2.72	3.60	0.79	26.4	7.3	1.13	.284	3.29	73	3.11	74	7.47	92.7
19	Matt Thornton M. Thornton	36	36	1	46	.439	748	3.41	642	0	0	23	662.2	594	251	273	52	251	20	170	37	2,799	28	8.72	3.41	2.56	0.71	22.9	9.0	1.28	.296	3.71	79	3.40	79	8.07	66.8
20	Troy Percival T. Percival	35	35	1	43	.449	703	3.17	781	0	0	358	708.2	479	250	271	85	306	27	546	25	2,915	32	9.92	3.89	2.55	1.08	26.8	10.5	1.11	.230	3.44	69	3.86	85	6.08	56.9
21	Roger McDowell R. McDowell	35	70	2	70	.500	723	3.30	524	0	0	159	1050.0	1,045	385	454	50	410	28	430	98	4,517	37	4.49	3.51	1.28	0.43	11.6	9.1	1.39	.284	3.89	87	3.72	97	8.96	12.5
22	Jeurys Familia J. Familia	34	34	1	29	.540	561	3.58	577	0	0	127	555.2	494	221	247	44	266	19	251	27	2,392	31	9.35	4.31	2.17	0.71	24.1	11.1	1.37	.303	4.00	91	3.64	90	8.00	24.1
23	Steve Kline S. Kline	34	34	1	39	.466	796	3.51	493	0	0	39	682.1	649	266	293	60	295	26	231	48	2,940	26	6.50	3.89	1.67	0.79	16.8	10.0	1.38	.285	3.86	80	4.19	95	8.56	16.3
24	Mychal Givens M. Givens	32	32	1	24	.571	425	3.47	539	0	0	31	461.2	365	178	196	54	191	27	125	17	1,913	21	10.51	3.72	2.82	1.05	28.2	10.0	1.20	.282	3.82	80	3.75	85	7.12	33.7
25	Jeremy Jeffress J. Jeffress	32	32	1	12	.727	414	3.08	387	0	0	52	424.1	387	145	160	31	175	19	144	20	1,793	22	8.21	3.71	2.21	0.66	21.6	9.8	1.32	.301	3.39	72	3.64	86	8.21	25.7