most ip in a season without a loss by a pitcher

Ed Walsh has pitched the most innings in wins in a season, with 367 innings in 1908.

	NAME	IP	L	SEASON	TM	W	L%	G	W%	GS	ERA	SO	CG	SHO	SV	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	Ed Walsh E. Walsh	367.0	0	1908	CWS	40	.000	51	1.000	35		209	34	11	6	248		57	1	40	8	15		1,381	5	5.13	0.98	5.23	0.02	15.1	2.9	0.78	.220	1.40	6.08
2	Jack Chesbro J. Chesbro	362.2	0	1904	NYH	41	.000	43	1.000	39	1.24	198	39	6	0	243	50	73	4	68	5	3			6	4.91	1.69	2.91	0.10		5.0	0.86	.223	1.81	6.03
3	Joe McGinnity J. McGinnity	338.1	0	1904	NYG	35	.000	43	1.000	36		127	31	9	3	251		70	6	72	10	7		1,329	2	3.38	1.92	1.76	0.16	9.6	5.4	0.95	.220	1.86	6.68
4	Christy Mathewson C. Mathewson	320.0	0	1908	NYG	37	.000	45	1.000	34		224	30	11	3	206		42	3	30	3	9		1,201	2	6.30	0.84	7.47	0.08	18.7	2.5	0.74	.216	1.18	5.79
5	Cy Young C. Young	310.0	0	1902	BSA	32	.000	34	1.000	32	1.54	137	32	3	0	244	53	78	4	40	7	1			2	3.98	1.16	3.43	0.12		3.5	0.92	.250	2.26	7.08
6	Grover Alexander G. Alexander	303.2	0	1916	PHN	33	.000	36	1.000	33	0.83	139	33	16	3	217	28	36	2	33	5	3		1,122	3	4.12	0.98	4.21	0.06	12.4	2.9	0.82	.228	1.07	6.43
7	Denny McLain D. McLain	302.0	0	1968	DET	31	.000	35	1.000	35	1.70	259	28	6	0	209	57	62	24	52	5	0	1	1,145	3	7.72	1.55	4.98	0.72	22.6	4.5	0.86	.230	1.85	6.23
8	Grover Alexander G. Alexander	302.0	0	1915	PHN	31	.000	39	1.000	33	0.95	192	30	12	4	187	32	53	2	49	5	6		1,137	1	5.72	1.46	3.92	0.06	16.9	4.3	0.78	.208	1.58	5.57
9	Joe Wood J. Wood	301.1	0	1912	BSA	34	.000	38	1.000	33	0.30	231	30	10	1	228		78	2	60	10	5		1,173	5	6.90	1.79	3.85	0.06	19.7	5.1	0.96	.260	2.33	6.81
10	Jack Coombs J. Coombs	297.2	0	1910	PHA	31	.000	36	1.000	30		193	30	13	1	181		37	0	99	6	5		1,144	8	5.84	2.99	1.95	0.00	16.9	8.7	0.94	.214	1.12	5.47
11	Cy Young C. Young	290.0	0	1901	BSA	33	.000	33	1.000	31	1.15	130	30	5	0	232	37	64	5	23	7	2			0	4.03	0.71	5.65	0.16		2.2	0.88	.256	1.99	7.20
12	Grover Alexander G. Alexander	288.0	0	1917	PHN	30	.000	32	1.000	31	1.16	149	30	8	0	218	37	49	3	38	5	0		1,102	1	4.66	1.19	3.92	0.09	13.5	3.4	0.89	.237	1.53	6.81
13	Walter Johnson W. Johnson	288.0	0	1913	WSH	36	.000	41	1.000	29	0.63	204	23	11	2	175	20	31	5	36	5	11		1,056	1	6.38	1.13	5.67	0.16	19.3	3.4	0.73	.211	0.97	5.47
14	Sandy Koufax S. Koufax	287.0	0	1963	LAD	25	.000	35	1.000	35	1.44	275	20	11	0	183	46	48	14	51	3	0	6	1,099	3	8.62	1.60	5.39	0.44	25.0	4.6	0.82	.224	1.51	5.74
15	Christy Mathewson C. Mathewson	282.2	0	1904	NYG	33	.000	36	1.000	34		161	24	4	0	207		58	5	57	4	2		1,095	6	5.13	1.81	2.82	0.16	14.7	5.2	0.93	.233	1.85	6.59
16	Walter Johnson W. Johnson	282.1	0	1912	WSH	33	.000	38	1.000	27	0.16	232	25	7	2	191		47	0	52	8	11		1,068	7	7.40	1.66	4.46	0.00	21.7	4.9	0.86	.246	1.50	6.09
17	Claude Hendrix C. Hendrix	282.0	0	1914	CHF	29	.000	38	1.000	28	1.34	153	27	6	5	182	42	61	4	61	6	10			5	4.88	1.95	2.51	0.13		6.5	0.86	.250	1.95	5.81
18	Bill James B. James	279.1	0	1914	BSN	26	.000	39	1.000	31	1.74	137	25	4	3	213	54	70	5	95	10	8		1,100	4	4.41	3.06	1.44	0.16	12.5	8.6	1.10	.244	2.26	6.86
19	Robin Roberts R. Roberts	279.0	0	1952	PHN	28	.000	32	1.000	30	2.42	127	27	3	2	242	75	82	17	39	3	2		1,102	1	4.10	1.26	3.26	0.55	11.5	3.5	1.01	.246	2.65	7.81
20	Dizzy Dean D. Dean	278.2	0	1934	SLN	30	.000	43	1.000	28	2.00	172	23	7	7	229	62	75	10	58	4	13		1,123	2	5.56	1.87	2.97	0.32	15.3	5.2	1.03	.249	2.42	7.40
21	Sandy Koufax S. Koufax	275.0	0	1965	LAD	26	.000	35	1.000	33	1.73	325	25	8	2	170	53	64	20	55	3	2	2	1,050	9	10.64	1.80	5.91	0.65	31.0	5.2	0.82	.232	2.09	5.56
22	Carl Mays C. Mays	274.2	0	1921	NYY	27	.000	40	1.000	29	2.65	57	26	1	7	258	81	93	10	60	5	10		1,117	2	1.87	1.97	0.95	0.33	5.1	5.4	1.16	.252	3.05	8.45
23	Joe McGinnity J. McGinnity	274.1	0	1903	NYG	31	.000	35	1.000	30		116	28	3	2	208		69	1	70	11	5		1,093	4	3.81	2.30	1.66	0.03	10.6	6.4	1.01	.231	2.26	6.82
24	Ed Walsh E. Walsh	273.1	0	1907	CWS	24	.000	38	1.000	29		139	23	5	4	193		60	2	57	5	9			7	4.58	1.88	2.44	0.07		7.2	0.91	.324	1.98	6.35
25	Mickey Lolich M. Lolich	270.1	0	1971	DET	25	.000	31	1.000	31	2.13	224	22	4	0	220	64	74	20	64	4	0	2	1,081	5	7.46	2.13	3.50	0.67	20.7	5.9	1.05	.260	2.46	7.32