Between the 1980 and 1989 seasons, the Philadelphia Phillies put up the most runs by a team in a game, with 26 runs against the Mets on June 11, 1985.

Interpreted as:

MLB team most run in a regular-season game 1980s

	TEAM	R	DATE	TM		OPP	RESULT	AB	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Phillies	26	6/11/1985	PHI	vs	NYM	W 26-7	50	27	10	2	2	25	7	1	3	2	0	59	47	14	0	1	1	2	.540	.593	.940	1.533
2	Red Sox	24	8/21/1986	BOS	@	CLE	W 24-5	51	24	2	0	3	23	9	1	2	0	0	61	35	5	0	0	0	0	.471	.557	.686	1.244
3	Mets	23	8/16/1987	NYM	@	CHC	W 23-10	47	21	4	1	3	22	8	0	8	1	0	56	36	8	0	1	1	0	.447	.518	.766	1.284
4	Cubs	22	6/3/1987	CHC	vs	HOU	W 22-7	44	21	3	0	6	21	9	0	6	1	0	54	42	9	0	1	0	1	.477	.556	.955	1.510
5	Giants	21	7/9/1988	SFG	vs	STL	W 21-2	41	20	3	2	5	21	6	0	7	0	1	48	42	10	0	1	0	0	.488	.542	1.024	1.566
6	Reds	21	9/15/1987	CIN	@	ATL	W 21-6	47	19	3	1	7	21	3	0	9	0	0	51	45	11	1	0	1	0	.404	.440	.957	1.397
7	Rangers	20	7/19/1987	TEX	vs	NYY	W 20-3	44	22	5	1	3	19	5	0	4	1	0	49	38	9	0	0	0	2	.500	.551	.864	1.415
8	Angels	20	6/20/1980	CAL	@	BOS	W 20-2	49	26	6	1	6	19	4	0	3	1	1	54	52	13	0	1	0	2	.531	.556	1.061	1.617
9	Twins	20	4/27/1980	MIN	vs	OAK	W 20-11	41	20	1	2	0	19	8	1	5	0	1	52	25	3	0	2	0	2	.488	.558	.610	1.167
10	Athletics	19	8/29/1989	OAK	@	NYY	W 19-5	46	18	2	2	2	17	5	1	6	1	0	52	30	6	0	0	0	0	.391	.462	.652	1.114
11	Twins	19	5/20/1989	MIN	@	TEX	W 19-3	46	20	2	0	4	19	8	0	6	1	0	55	34	6	0	1	0	0	.435	.509	.739	1.248
12	Reds	19	5/1/1989	CIN	@	MON	W 19-6	44	21	4	0	2	17	7	0	6	1	1	53	31	6	0	2	1	0	.477	.528	.705	1.233
13	Phillies	19	6/23/1986	PHI	vs	CHC	W 19-1	42	20	11	0	4	19	7	0	7	3	0	51	43	15	1	1	0	0	.476	.540	1.024	1.564
14	Rangers	19	5/12/1986	TEX	@	CLE	W 19-2	43	22	3	0	1	18	9	1	5	0	3	55	28	4	1	1	0	2	.512	.593	.651	1.244
15	Athletics	19	5/15/1985	OAK	@	MIL	W 19-3	46	19	4	0	3	16	8	0	7	0	0	55	32	7	0	1	0	0	.413	.491	.696	1.187
16	Blue Jays	19	6/26/1983	TOR	@	SEA	W 19-7	46	21	3	0	4	18	9	1	6	0	0	57	36	7	0	1	0	1	.457	.544	.783	1.326
17	Brewers	19	5/31/1980	MIL	@	BOS	W 19-8	49	22	8	0	2	18	2	0	2	0	0	51	36	10	0	0	0	0	.449	.471	.735	1.205
18	Reds	18	8/3/1989	CIN	vs	HOU	W 18-2	50	26	5	0	3	16	1	0	3	1	0	51	40	8	0	0	0	1	.520	.529	.800	1.329
19	Tigers	18	8/14/1988	DET	@	BOS	W 18-6	42	19	4	0	2	18	8	0	2	0	0	52	29	6	0	2	0	2	.452	.519	.690	1.210
20	Yankees	18	4/18/1988	NYY	@	MIN	W 18-5	46	20	5	0	3	17	7	0	10	2	0	55	34	8	0	2	2	0	.435	.491	.739	1.230
21	Blue Jays	18	9/14/1987	TOR	vs	BAL	W 18-3	44	21	2	0	10	18	4	0	4	0	0	48	53	12	0	0	0	1	.477	.521	1.205	1.725
22	Tigers	18	6/7/1987	DET	@	BOS	W 18-8	45	21	4	1	4	16	7	0	10	1	1	53	39	9	1	0	1	1	.467	.538	.867	1.405
23	Angels	18	9/18/1986	CAL	vs	KCR	W 18-3	42	20	4	2	3	18	9	1	8	1	0	53	37	9	1	0	1	1	.476	.577	.881	1.458
24	Giants	18	6/23/1986	SFG	vs	SDP	W 18-1	43	21	3	1	2	18	3	0	9	0	0	49	32	6	1	2	1	0	.488	.500	.744	1.244
25	Orioles	18	6/8/1986	BAL	@	NYY	W 18-9	46	22	2	0	4	17	8	0	4	0	2	55	36	6	1	0	0	1	.478	.556	.783	1.338