most inning pitched in a game (since 1970)

Since 1970, Gaylord Perry and Clay Kirby are tied for pitching the most innings in a game, with 15 innings.

Interpreted as:

most inning pitched by a player in a regular-season game (since 1970)

	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	15.0	4/17/1974	CLE	@	MIL		1	2.40	14	0	0	0	8	4	4	1	4	0	0	0	55	0
2	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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	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
11	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
12	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
13	Vida Blue V. Blue	13.0	5/17/1977	OAK	vs	NYY		1	1.38	6	0	0	0	7	2	2	0	4	0	0	1	49	0
14	Catfish Hunter C. Hunter	13.0	8/27/1976	NYY	@	CAL		1	0.00	8	0	0	0	11	0	0	0	4	1	0	1	52	0
15	Frank Tanana F. Tanana	13.0	8/27/1976	CAL	vs	NYY		1	0.00	13	0	0	0	7	0	0	0	2	0	0	1	50	0
16	Frank Tanana F. Tanana	13.0	9/22/1975	CAL	vs	CWS		1	0.00	13	0	0	0	6	0	0	0	3	0	0	1	46	0
17	Jim Colborn J. Colborn	13.0	9/27/1974	MIL	@	BAL		1	0.00	9	0	0	0	8	0	0	0	6	1	0	2	54	0
18	Jerry Reuss J. Reuss	13.0	9/17/1974	PIT	vs	STL	L	1	1.38	11	1	0	0	8	2	2	0	5	0	0	1	50	0
19	Dave Freisleben D. Freisleben	13.0	8/4/1974	SDP	vs	CIN		1	0.00	7	0	0	0	8	0	0	0	3	0	0	1	49	0
20	Nolan Ryan N. Ryan	13.0	6/14/1974	CAL	vs	BOS		1	2.08	19	0	0	0	8	3	3	1	10	0	0	0	58	0
21	Wilbur Wood W. Wood	13.0	5/25/1974	CWS	@	KCR	L	1	1.38	8	1	0	0	8	2	4	0	6	0	0	2	54	0
22	Lindy McDaniel L. McDaniel	13.0	8/4/1973	NYY	@	DET	W	0	0.69	3	0	0	0	6	1	1	1	3	0	1	1	48	0
23	Stan Bahnsen S. Bahnsen	13.0	5/26/1973	CWS	vs	CLE		1	1.38	4	0	0	0	9	2	2	0	3	0	0	0	48	0
24	Gaylord Perry G. Perry	13.0	5/26/1973	CLE	@	CWS		1	1.38	8	0	0	0	10	2	2	1	5	0	0	2	52	1
25	Don Wilson D. Wilson	13.0	9/7/1972	HOU	@	SFG	W	1	0.69	7	1	0	0	10	1	1	0	2	0	0	0	49	0