Since 1960, Gaylord Perry, Juan Marichal and Tom Cheney are tied for pitching the most innings in a game, with 16 innings.

Interpreted as:

most ip by a player in a regular-season game since 1960

	NAME	IP	DATE	TM		OPP	DEC	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP
1	Gaylord Perry G. Perry	16.0	9/1/1967	SFG	@	CIN		1	0.00	12	0	0	0	10	0	0	0	2	1	0	1	59	0
2	Juan Marichal J. Marichal	16.0	7/2/1963	SFG	vs	MIL	W	1	0.00	10	1	1	0	8	0	0	0	4	0	0	0	59	0
3	Tom Cheney T. Cheney	16.0	9/12/1962	WSH	@	BAL	W	1	0.56	21	1	0	0	10	1	1	0	4	0	0	0	62	1
4	Warren Spahn W. Spahn	15.1	7/2/1963	MIL	@	SFG	L	1	0.59	2	1	0	0	9	1	1	1	1	0	0	1	56	0
5	Gaylord Perry G. Perry	15.0	4/17/1974	CLE	@	MIL		1	2.40	14	0	0	0	8	4	4	1	4	0	0	0	55	0
6	Clay Kirby C. Kirby	15.0	9/24/1971	SDP	vs	HOU		1	0.60	15	0	0	0	8	1	1	1	3	0	0	0	55	0
7	Rob Gardner R. Gardner	15.0	10/2/1965	NYM	vs	PHI		1	0.00	7	0	0	0	5	0	0	0	2	0	0	0	53	0
8	Chris Short C. Short	15.0	10/2/1965	PHI	@	NYM		1	0.00	18	0	0	0	9	0	0	0	3	0	0	1	56	0
9	Al Jackson A. Jackson	15.0	8/14/1962	NYM	vs	PHI	L	1	1.20	6	1	0	0	6	2	3	0	5	1	0	1	57	0
10	Luis Tiant L. Tiant	14.1	6/14/1974	BOS	@	CAL	L	1	2.51	5	1	0	0	11	4	4	0	4	0	0	0	56	0
11	Steve McCatty S. McCatty	14.0	8/10/1980	OAK	vs	SEA	L	1	1.29	8	1	0	0	6	2	2	1	4	0	0	0	51	0
12	Rick Langford R. Langford	14.0	7/20/1980	OAK	vs	CLE	W	1	2.57	4	1	0	0	8	4	5	1	1	0	0	1	52	1
13	Mike Norris M. Norris	14.0	6/11/1980	OAK	vs	BAL	W	1	1.29	5	1	0	0	12	2	2	1	2	0	0	0	51	0
14	Matt Keough M. Keough	14.0	5/17/1980	OAK	@	TOR	W	1	0.64	8	1	0	0	5	1	2	0	6	0	0	0	48	0
15	Ross Grimsley R. Grimsley	14.0	9/11/1974	BAL	vs	NYY		1	1.29	5	0	0	0	12	2	2	0	3	0	0	1	56	0
16	Bob Gibson B. Gibson	14.0	8/12/1970	STL	vs	SDP	W	1	2.57	13	1	0	0	13	4	4	1	2	0	0	1	52	0
17	Juan Marichal J. Marichal	14.0	5/26/1966	SFG	vs	PHI	W	1	0.00	10	1	1	0	6	0	0	0	1	0	0	0	49	0
18	Sammy Ellis S. Ellis	14.0	6/29/1965	CIN	@	PIT		1	0.64	10	0	0	0	4	1	1	0	7	0	0	0	49	0
19	Wade Blasingame W. Blasingame	14.0	5/5/1965	MIL	vs	HOU	W	1	0.64	12	1	0	0	5	1	1	1	6	0	0	1	52	0
20	Dean Chance D. Chance	14.0	6/6/1964	LAA	vs	NYY		1	0.00	12	0	0	0	3	0	0	0	2	0	0	0	47	0
21	Juan Marichal J. Marichal	13.1	8/19/1969	SFG	@	NYM	L	1	0.68	13	1	0	0	6	1	1	1	1	0	0	1	46	0
22	Robin Roberts R. Roberts	13.1	6/30/1963	BAL	vs	KCA	L	1	1.35	7	0	0	0	8	2	2	0	2	0	0	0	49	0
23	Charlie Hough C. Hough	13.0	6/11/1986	TEX	@	MIN		1	1.38	7	0	0	0	8	2	2	0	2	0	0	0	47	0
24	Tommy John T. John	13.0	9/14/1983	CAL	vs	KCR		1	0.00	6	0	0	0	13	0	0	0	0	0	0	0	47	0
25	Larry Gura L. Gura	13.0	5/21/1980	KCR	vs	OAK		1	1.38	6	0	0	0	12	2	2	0	2	0	0	0	53	0