most wins by an mlb pitcher without a loss to start career

Walter Johnson has the most career wins in wins that he has started, with 376 wins.

Interpreted as:

most regular-season wins by an MLB pitcher without a loss to start career

	NAME	W	L	GS	W%	L%	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	H/9
1	Walter Johnson W. Johnson	376	0	417	1.000	.000	417	1.23	2,203	344	110	0	3587.1	2,590		748	46	775	104	0		13,901	79	5.53	1.94	2.84	0.12	15.8	5.6	0.94	.236	1.88	6.50
2	Warren Spahn W. Spahn	358	0	438	1.000	.000	438	2.23	1,782	324	63	0	3635.0	3,003	899	1,013	243	898	23	0	20	14,478	44	4.41	2.22	1.98	0.60	12.3	6.2	1.07	.239	2.51	7.44
3	Greg Maddux G. Maddux	355	0	514	1.000	.000	514	2.20	2,450	92	35	0	3629.1	3,019	887	992	193	627	82	0	78	14,264	48	6.08	1.55	3.91	0.48	17.2	4.4	1.00	.259	2.46	7.49
4	Roger Clemens R. Clemens	354	0	523	1.000	.000	523	2.31	3,640	92	46	0	3764.2	2,885	965	1,051	208	1,083	108	0	25	15,029	106	8.70	2.59	3.36	0.50	24.2	7.2	1.05	.268	2.51	6.90
5	Grover Alexander G. Alexander	350	0	407	1.000	.000	407	1.71	1,518	342	90	0	3543.1	2,954		901	93	585	33	0		13,870	18	3.86	1.49	2.59	0.24	10.9	4.2	1.00	.246	2.29	7.50
6	Christy Mathewson C. Mathewson	343	0	374	1.000	.000	374	0.62	1,735	313	79	0	3201.1	2,540		719	50	530	28	0			65	4.88	1.49	3.27	0.14		4.3	0.96	.249	2.02	7.14
7	Steve Carlton S. Carlton	327	0	469	1.000	.000	469	2.34	2,944	216	55	0	3656.2	2,925	952	1,073	227	1,141	36	0	63	14,688	120	7.25	2.81	2.58	0.56	20.0	7.8	1.11	.261	2.64	7.20
8	Don Sutton D. Sutton	321	0	503	1.000	.000	503	2.29	2,521	151	58	0	3735.1	2,902	950	1,043	273	865	44	0	41	14,772	67	6.07	2.08	2.91	0.66	17.1	5.9	1.01	.238	2.51	6.99
9	Nolan Ryan N. Ryan	318	0	482	1.000	.000	482	1.98	3,827	163	61	0	3552.1	2,191	781	897	140	1,625	92	0	27	14,264	140	9.70	4.12	2.36	0.35	26.8	11.4	1.07	.239	2.27	5.55
10	Tom Seaver T. Seaver	310	0	444	1.000	.000	444	2.10	2,682	186	61	0	3484.2	2,582	813	881	221	923	41	0	57	13,701	73	6.93	2.38	2.91	0.57	19.6	6.7	1.01	.240	2.28	6.67
11	Tom Glavine T. Glavine	305	0	479	1.000	.000	479	2.51	1,937	50	25	0	3276.0	2,844	913	1,013	205	987	41	0	80	13,287	39	5.32	2.71	1.96	0.56	14.6	7.4	1.17	.261	2.78	7.81
12	Gaylord Perry G. Perry	305	0	438	1.000	.000	438	2.10	2,277	227	53	0	3511.2	2,845	821	955	184	806	57	0	53	13,898	84	5.84	2.07	2.83	0.47	16.4	5.8	1.04	.252	2.45	7.29
13	Phil Niekro P. Niekro	302	0	454	1.000	.000	454	2.41	2,144	182	45	0	3473.0	2,873	929	1,076	247	1,080	79	0	25	14,097	117	5.56	2.80	1.99	0.64	15.2	7.7	1.14	.249	2.79	7.45
14	Randy Johnson R. Johnson	301	0	437	1.000	.000	437	2.41	3,718	75	37	0	3106.1	2,256	832	918	240	984	128	0	17	12,414	67	10.77	2.85	3.78	0.70	30.0	7.9	1.04	.275	2.66	6.54
15	Eddie Plank E. Plank	299	0	350	1.000	.000	350	0.89	1,522	296	69	0	2948.1	2,325		693	22	671	114	0			34	4.65	2.05	2.27	0.07		6.0	1.02	.260	2.12	7.10
16	Early Wynn E. Wynn	287	0	379	1.000	.000	379	2.43	1,585	224	49	0	2971.1	2,411	801	894	169	1,048	40	0	11	12,124	32	4.80	3.17	1.51	0.51	13.1	8.6	1.16	.242	2.71	7.30
17	Bert Blyleven B. Blyleven	286	0	437	1.000	.000	437	2.29	2,531	167	60	0	3328.0	2,728	846	950	214	838	83	0	27	13,282	67	6.84	2.27	3.02	0.58	19.1	6.3	1.07	.261	2.57	7.38
18	Tommy John T. John	284	0	472	1.000	.000	472	2.45	1,592	129	46	0	3348.0	3,043	910	1,037	168	781	67	0	45	13,503	98	4.28	2.10	2.04	0.45	11.8	5.8	1.14	.264	2.79	8.18
19	Fergie Jenkins F. Jenkins	278	0	376	1.000	.000	376	2.40	2,096	208	49	0	2950.2	2,450	788	880	249	550	48	0	39	11,674	37	6.39	1.68	3.81	0.76	18.0	4.7	1.02	.252	2.68	7.47
20	Robin Roberts R. Roberts	275	0	369	1.000	.000	369	2.45	1,529	239	45	0	3001.2	2,581	816	890	252	514	36	0	23	11,881	20	4.58	1.54	2.97	0.76	12.9	4.3	1.03	.244	2.67	7.74
21	Mike Mussina M. Mussina	270	0	383	1.000	.000	383	2.59	2,137	44	23	0	2656.0	2,263	765	817	213	527	37	0	14	10,498	43	7.24	1.79	4.06	0.72	20.4	5.0	1.05	.270	2.77	7.67
22	Lefty Grove L. Grove	268	0	338	1.000	.000	338	2.56	1,608	243	35	0	2737.0	2,502	780	904	96	746	25	0		11,297	27	5.29	2.45	2.16	0.32	14.2	6.6	1.19	.273	2.97	8.23
23	Justin Verlander J. Verlander	266	0	397	1.000	.000	397	2.30	2,741	20	9	0	2654.0	1,966	678	733	205	682	90	0	13	10,512	68	9.30	2.31	4.02	0.70	26.1	6.5	1.00	.259	2.49	6.67
24	Red Ruffing R. Ruffing	264	0	326	1.000	.000	326	2.75	1,237	228	45	0	2650.2	2,314	810	916	115	864	26	0		10,905	28	4.20	2.93	1.43	0.39	11.3	7.9	1.20	.254	3.11	7.86
25	Jamie Moyer J. Moyer	262	0	432	1.000	.000	432	3.23	1,669	24	10	0	2796.0	2,610	1,003	1,071	284	711	91	0	35	11,543	29	5.37	2.29	2.35	0.91	14.5	6.2	1.19	.265	3.45	8.40