The Boston Braves and the Brooklyn Robins are tied for pitching the most innings in a game, with 26 innings on May 1, 1920.

Interpreted as:

most ip by a team in a regular-season game

	TEAM	IP	DATE	TM		OPP	RESULT	ERA	SO	SHO	SV	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Braves	26.0	5/1/1920	BSN	vs	BKN	N 1-1	0.00	7	0	0	9	0	1	0	4	0		90	1	2.42	1.38	1.75	0.00	7.8	4.4	0.50	.114	0.35	3.12
2	Robins	26.0	5/1/1920	BKN	@	BSN	N 1-1	0.00	7	0	0	15	0	1	0	5	0		96	0	2.42	1.73	1.40	0.00	7.3	5.2	0.77	.179	0.35	5.19
3	White Sox	25.0	5/8/1984	CWS	vs	MIL	W 7-6	2.16	16	0	0	20	6	6	1	11	0	1	94	2	5.76	3.96	1.45	0.36	17.0	11.7	1.24	.288	2.16	7.20
4	Cardinals	25.0	9/11/1974	STL	@	NYM	W 4-3	0.72	16	0	0	16	2	3	1	11	0	4	103	1	5.76	3.96	1.45	0.36	15.5	10.7	1.08	.200	1.08	5.76
5	Mets	25.0	9/11/1974	NYM	vs	STL	L 3-4	1.08	12	0	0	18	3	4	1	8	2	3	99	2	4.32	2.88	1.50	0.36	12.1	8.1	1.04	.224	1.44	6.48
6	Brewers	24.1	5/8/1984	MIL	@	CWS	L 6-7	1.11	17	0	0	23	3	7	1	7	0	2	104	0	6.29	2.59	2.43	0.37	16.3	6.7	1.23	.278	2.59	8.51
7	Astros	24.0	4/15/1968	HOU	vs	NYM	W 1-0	0.00	20	0	0	11	0	0	0	5	0	2	88	1	7.50	1.88	4.00	0.00	22.7	5.7	0.67	.175	0.00	4.13
8	Tigers	24.0	7/21/1945	DET	@	PHA	N 1-1	0.00	8	0	0	16	0	1	0	5	0		91	0	3.00	1.88	1.60	0.00	8.8	5.5	0.88	.205	0.38	6.00
9	Athletics	24.0	7/21/1945	PHA	vs	DET	N 1-1	0.00	10	0	0	11	0	1	0	7	0		88	0	3.75	2.63	1.43	0.00	11.4	8.0	0.75	.155	0.38	4.13
10	Americans	24.0	9/1/1906	BSA	vs	PHA	L 1-4	0.00	14	0	0	16	0	4	0	2	1		87	0	5.25	0.75	7.00	0.00	16.1	2.3	0.75	.229	1.50	6.00
11	Athletics	24.0	9/1/1906	PHA	@	BSA	W 4-1	0.00	18	0	0	15	0	1	0	6	1		89	0	6.75	2.25	3.00	0.00	20.2	6.7	0.88	.234	0.38	5.63
12	Mets	23.1	4/15/1968	NYM	@	HOU	L 0-1	0.39	15	0	0	11	1	1	0	7	0	4	87	2	5.79	2.70	2.14	0.00	17.2	8.0	0.77	.169	0.39	4.24
13	Giants	23.0	5/31/1964	SFG	@	NYM	W 8-6	1.96	22	0	1	20	5	6	1	3	1	1	91	0	8.61	1.17	7.33	0.39	24.2	3.3	1.00	.297	2.35	7.83
14	Mets	23.0	5/31/1964	NYM	vs	SFG	L 6-8	3.13	14	0	0	17	8	8	0	9	1	1	93	0	5.48	3.52	1.56	0.00	15.1	9.7	1.13	.246	3.13	6.65
15	Bees	23.0	6/27/1939	BSN	vs	BKN	N 2-2	0.00	11	0	0	16	0	2	0	10	0		90	0	4.30	3.91	1.10	0.00	12.2	11.1	1.13	.232	0.78	6.26
16	Dodgers	23.0	6/27/1939	BKN	@	BSN	N 2-2	0.00	7	0	0	17	0	2	0	2	0		89	1	2.74	0.78	3.50	0.00	7.9	2.2	0.83	.213	0.78	6.65
17	Padres	22.0	4/17/2008	SDP	vs	COL	L 1-2	0.41	20	0	0	14	1	2	0	8	0	1	84	0	8.18	3.27	2.50	0.00	23.8	9.5	1.00	.250	0.82	5.73
18	Rockies	22.0	4/17/2008	COL	@	SDP	W 2-1	0.41	17	0	0	11	1	1	0	5	1	1	81	0	6.95	2.05	3.40	0.00	21.0	6.2	0.73	.190	0.41	4.50
19	Twins	22.0	8/31/1993	MIN	vs	CLE	W 5-4	0.82	8	0	0	16	2	4	0	7	0	2	85	1	3.27	2.86	1.14	0.00	9.4	8.2	1.05	.229	1.64	6.55
20	Dodgers	22.0	8/23/1989	LAD	@	MON	W 1-0	0.00	18	0	0	13	0	0	0	6	0	3	79	1	7.36	2.45	3.00	0.00	22.8	7.6	0.86	.236	0.00	5.32
21	Expos	22.0	8/23/1989	MON	vs	LAD	L 0-1	0.41	17	0	0	20	1	1	1	0	0	0	81	0	6.95	0.00		0.41	21.0	0.0	0.91	.302	0.41	8.18
22	Astros	22.0	6/3/1989	HOU	vs	LAD	W 5-4	1.64	14	0	0	14	4	4	1	8	2	2	88	1	5.73	3.27	1.75	0.41	15.9	9.1	1.00	.206	1.64	5.73
23	Twins	22.0	5/12/1972	MIN	vs	MIL	L 3-4	1.64	13	0	0	13	4	4	0	8	0	2	86	0	5.32	3.27	1.63	0.00	15.1	9.3	0.95	.200	1.64	5.32
24	Brewers	22.0	5/12/1972	MIL	@	MIN	W 4-3	1.23	16	0	1	17	3	3	0	12	0	5	92	0	6.55	4.91	1.33	0.00	17.4	13.0	1.32	.266	1.23	6.95
25	Senators	22.0	6/12/1967	WSH	vs	CWS	W 6-5	2.05	11	0	0	15	5	5	0	4	2	1	82	0	4.50	1.64	2.75	0.00	13.4	4.9	0.86	.231	2.05	6.14