Ed Walsh has the most games pitched with 9.0+ innings pitched in a season, with 38 games in 1908.

Interpreted as:

most games by a player with 9+ip in one season

	NAME	G	IP	SEASON	TM	W	L	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	38	358.0	1908	CWS	34	4	.895	38		193	38	11	0	244		51	1	39	9	0		1,350	6	4.85	0.98	4.95	0.03	14.3	2.9	0.79	.219	1.28	6.13
2	Grover Alexander G. Alexander	35	325.0	1917	PHN	30	4	.882	35	1.38	162	34	8	0	260	50	67	3	45	6	0		1,260	2	4.49	1.25	3.60	0.08	12.9	3.6	0.94	.246	1.86	7.20
3	Grover Alexander G. Alexander	35	320.0	1916	PHN	33	2	.943	35	0.87	143	35	16	0	233	31	40	2	36	5	0		1,186	3	4.02	1.01	3.97	0.06	12.1	3.0	0.84	.231	1.13	6.55
4	Bob Feller B. Feller	32	292.0	1946	CLE	26	6	.813	32	1.33	274	32	10	0	191	43	48	6	114	3	0		1,155	2	8.45	3.51	2.40	0.18	23.7	9.9	1.04	.244	1.48	5.89
5	Dizzy Trout D. Trout	32	295.0	1944	DET	24	8	.750	32	1.46	117	31	7	0	242	48	64	6	57	3	0		1,152	1	3.57	1.74	2.05	0.18	10.2	4.9	1.01	.244	1.95	7.38
6	Grover Alexander G. Alexander	32	296.1	1915	PHN	28	3	.903	32	0.94	191	32	11	0	179	31	55	3	45	6	0		1,108	1	5.80	1.37	4.24	0.09	17.2	4.1	0.76	.204	1.67	5.44
7	Bucky Walters B. Walters	31	282.1	1939	CIN	27	4	.871	31	1.82	113	30	2	0	203	57	69	12	84	5	0		1,102	6	3.60	2.68	1.35	0.38	10.3	7.6	1.02	.215	2.20	6.47
8	Jack Coombs J. Coombs	31	290.0	1910	PHA	27	1	.964	31		191	31	13	0	176		34	0	99	6	0		1,114	8	5.93	3.07	1.93	0.00	17.1	8.9	0.95	.215	1.06	5.46
9	Mordecai Brown M. Brown	31	291.0	1909	CHC	25	6	.806	31		134	31	8	0	202		59	1	45	7	0		1,106	5	4.14	1.39	2.98	0.03	12.1	4.1	0.85	.219	1.82	6.25
10	Dazzy Vance D. Vance	30	279.1	1924	BKN	27	3	.900	30	1.77	236	29	3	0	202	55	68	9	65	6	0		1,089	3	7.60	2.09	3.63	0.29	21.7	6.0	0.96	.250	2.19	6.51
11	Babe Ruth B. Ruth	30	271.0	1917	BSA	23	7	.767	30	1.69	119	30	6	0	193	51	65	1	84	10	0		1,060	7	3.95	2.79	1.42	0.03	11.2	7.9	1.02	.227	2.16	6.41
12	Cy Falkenberg C. Falkenberg	30	280.0	1914	IND	24	6	.800	30	1.77	162	30	9	0	226	55	71	2	57	4	0		1,105	6	5.21	1.83	2.84	0.06	14.7	5.2	1.01	.255	2.28	7.26
13	Claude Hendrix C. Hendrix	30	278.0	1914	CHF	24	5	.828	30	1.42	154	30	6	0	187	44	56	3	66	4	0		1,056	6	4.99	2.14	2.33	0.10	14.6	6.3	0.91	.222	1.81	6.05
14	Walter Johnson W. Johnson	30	275.2	1912	WSH	25	5	.833	28	0.16	227	28	7	0	184		56	0	62	9	2		1,058	9	7.41	2.02	3.66	0.00	21.5	5.9	0.89	.242	1.83	6.01
15	Grover Alexander G. Alexander	30	289.1	1911	PHN	24	6	.800	30	0.31	181	30	7	0	202		80	3	97	7	0		1,143	3	5.63	3.02	1.87	0.09	15.8	8.5	1.03	.233	2.49	6.28
16	Walter Johnson W. Johnson	30	272.0	1911	WSH	23	7	.767	30	0.30	179	30	5	0	242		90	8	55	8	0		1,094	9	5.92	1.82	3.25	0.26	16.4	5.0	1.09	.277	2.98	8.01
17	Christy Mathewson C. Mathewson	30	275.0	1908	NYG	27	2	.931	30		186	30	10	0	174		40	3	21	2	0		1,032	2	6.09	0.69	8.86	0.10	18.0	2.0	0.71	.209	1.31	5.69
18	Steve Carlton S. Carlton	29	266.0	1972	PHI	24	4	.857	29	1.25	230	28	8	0	174	37	42	10	61	1	0	6	1,005	6	7.78	2.06	3.77	0.34	22.9	6.1	0.88	.233	1.42	5.89
19	Robin Roberts R. Roberts	29	262.1	1953	PHN	23	6	.793	29	1.68	154	29	5	0	209	49	55	19	36	2	0		1,016	0	5.28	1.24	4.28	0.65	15.2	3.5	0.93	.236	1.89	7.17
20	Walter Johnson W. Johnson	29	272.2	1913	WSH	23	5	.821	28	0.99	193	28	11	0	176	30	39	7	33	5	1		1,007	2	6.37	1.09	5.85	0.23	19.2	3.3	0.77	.220	1.29	5.81
21	Joe Wood J. Wood	29	266.0	1912	BSA	27	2	.931	29	0.30	194	29	8	0	199		73	1	57	8	0		1,039	3	6.56	1.93	3.40	0.03	18.7	5.5	0.96	.254	2.47	6.73
22	Ed Walsh E. Walsh	29	268.2	1911	CWS	19	9	.679	29	0.44	183	29	5	0	221		76	2	57	5	0		1,066	6	6.13	1.91	3.21	0.07	17.2	5.3	1.03	.267	2.55	7.40
23	Russ Ford R. Ford	29	265.2	1910	NYH	26	2	.929	29		188	28	8	0	163		46	3	56	4	0		993	5	6.37	1.90	3.36	0.10	18.9	5.6	0.82	.216	1.56	5.52
24	Walter Johnson W. Johnson	29	267.2	1910	WSH	23	6	.793	29		226	29	8	0	162		39	0	52	8	0		1,004	13	7.60	1.75	4.35	0.00	22.5	5.2	0.80	.226	1.31	5.45
25	Gaylord Perry G. Perry	28	262.1	1974	CLE	20	7	.741	28	1.92	185	26	4	0	171	56	62	20	71	5	0	3	1,003	2	6.35	2.44	2.61	0.69	18.4	7.1	0.92	.209	2.13	5.87