Since 1980, 4 pitchers are tied for pitching the most innings in a game, with 14 innings. The first three are Steve McCatty on August 10, 1980, Rick Langford on July 20, 1980 and Mike Norris on June 11, 1980.

Interpreted as:

most ip by a player in a regular-season game since 1980

	NAME	IP	DATE	TM		OPP	DEC	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP
1	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
2	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
3	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
4	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
5	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
6	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
7	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
8	Tommy John T. John	12.0	7/30/1983	CAL	vs	OAK	L	1	1.50	2	1	0	0	9	2	2	0	3	1	0	3	47	0
9	Charlie Hough C. Hough	12.0	5/22/1982	TEX	@	KCR	W	1	0.75	5	1	0	0	6	1	1	0	2	0	0	1	44	0
10	Dick Ruthven D. Ruthven	12.0	7/25/1980	PHI	vs	ATL	W	1	3.00	6	1	0	0	8	4	4	1	5	0	0	0	45	0
11	Dave Stieb D. Stieb	12.0	5/17/1980	TOR	vs	OAK		1	1.50	2	0	0	0	10	2	2	0	5	0	0	1	49	0
12	Andy Hawkins A. Hawkins	11.2	7/6/1990	NYY	vs	MIN	L	1	1.54	8	0	0	0	6	2	2	0	4	1	0	1	43	0
13	Teddy Higuera T. Higuera	11.1	10/2/1987	MIL	@	BOS	L	1	2.38	10	1	0	0	6	3	3	1	3	0	0	1	44	0
14	Dave Stewart D. Stewart	11.0	8/1/1990	OAK	vs	SEA	W	1	0.00	5	1	1	0	5	0	0	0	3	0	0	0	41	0
15	Orel Hershiser O. Hershiser	11.0	10/1/1989	LAD	@	ATL	W	1	0.82	8	0	0	0	10	1	1	0	3	1	0	1	46	0
16	Jose DeLeon J. DeLeon	11.0	8/30/1989	STL	vs	CIN		1	0.00	8	0	0	0	1	0	0	0	0	0	0	0	33	0
17	Rick Sutcliffe R. Sutcliffe	11.0	9/20/1988	CHC	vs	MON	W	1	3.27	11	1	0	0	10	4	4	2	1	0	0	1	42	0
18	Charlie Hough C. Hough	11.0	6/29/1988	TEX	@	SEA	W	1	0.00	8	0	0	0	7	0	0	0	3	1	0	0	42	0
19	Mike Flanagan M. Flanagan	11.0	10/3/1987	TOR	@	DET		1	0.82	9	0	0	0	8	1	2	0	2	0	0	1	44	0
20	Jeff Sellers J. Sellers	11.0	10/2/1987	BOS	vs	MIL		1	1.64	9	0	0	0	11	2	2	0	2	0	0	0	45	0
21	Teddy Higuera T. Higuera	11.0	8/10/1987	MIL	vs	TEX		1	2.45	8	0	0	0	5	3	3	1	4	0	0	0	39	0
22	Bill Wegman B. Wegman	11.0	7/7/1986	MIL	vs	CAL		1	0.00	4	0	0	0	4	0	0	0	2	1	0	0	38	0
23	Rick Reuschel R. Reuschel	11.0	5/27/1986	PIT	vs	ATL		1	1.64	8	0	0	0	9	2	2	0	3	1	0	1	44	0
24	Fernando Valenzuela F. Valenzuela	11.0	9/6/1985	LAD	vs	NYM		1	0.00	5	0	0	0	6	0	0	0	3	0	0	0	39	0
25	Mike Moore M. Moore	11.0	8/14/1985	SEA	vs	CAL		1	0.82	12	0	0	0	9	1	1	0	2	1	0	1	45	0