Since 1920, the Chicago Cubs have the highest slugging percentage by a team in a loss, with a slugging percentage of 1.000 against the Phillies on September 19, 1997.

Interpreted as:

best slg by a team in a regular-season loss since 1920

	TEAM	SLG	L	DATE	TM		OPP	RESULT	W	L%	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	OPS
1	Cubs	1.000	1	9/19/1997	CHC	vs	PHI	L 5-10	0	1.000	22	5	9	1	0	4	5	1	0	2	0	1	23	22	5	0	0	0	1	.409	.435	1.435
2	Cubs	.947	1	8/17/2017	CHC	vs	CIN	L 10-13	0	1.000	38	10	13	3	1	6	10	2	1	10	0	0	42	36	10	0	1	0	0	.342	.381	1.328
3	Tigers	.932	1	5/28/1995	DET	vs	CWS	L 12-14	0	1.000	44	12	17	3	0	7	12	8	2	11	5	1	54	41	10	0	0	1	1	.386	.500	1.432
4	Tigers	.921	1	7/2/2002	DET	@	CWS	L 9-17	0	1.000	38	9	13	2	1	6	9	2	0	6	0	0	40	35	9	0	0	0	1	.342	.375	1.296
5	Dodgers	.909	1	6/30/1996	LAD	@	COL	L 15-16	0	1.000	44	15	18	2	1	6	15	6	0	12	2	0	51	40	9	0	1	0	0	.409	.471	1.380
6	Brewers	.902	1	5/11/2022	MIL	@	CIN	L 11-14	0	1.000	41	11	15	5	1	5	11	3	1	10	0	1	45	37	11	0	0	0	0	.366	.422	1.325
7	Tigers	.892	1	8/8/2004	DET	vs	BOS	L 9-11	0	1.000	37	9	11	1	0	7	9	1	0	3	0	0	38	33	8	0	0	0	1	.297	.316	1.208
8	Blue Jays	.891	1	8/12/2020	TOR	vs	MIA	L 11-14	0	1.000	46	11	18	2	0	7	11	4	0	12	3	0	50	41	9	0	0	0	0	.391	.440	1.331
9	Cardinals	.891	1	5/11/1923	SLN	@	PHN	L 14-20	0	1.000	46	14	22	5	1	4	14	3	0	2	2	1	50	41	10	1				.478	.510	1.402
10	Angels	.886	1	8/4/2022	LAA	vs	OAK	L 7-8	0	1.000	35	7	9	1	0	7	7	2	1	9	0	0	38	31	8	0	0	0	1	.257	.316	1.202
11	Red Sox	.886	1	5/31/1980	BOS	vs	MIL	L 8-19	0	1.000	35	8	12	1	0	6	8	4	0	3	0	0	39	31	7	0	0	0	4	.343	.410	1.296
12	Twins	.884	1	7/28/2021	MIN	vs	DET	L 14-17	0	1.000	43	14	16	1	0	7	14	7	1	8	0	0	51	38	8	0	0	0	0	.372	.471	1.354
13	Tigers	.881	1	8/9/1971	DET	@	BOS	L 11-12	0	1.000	42	11	16	3	0	6	11	2	2	7	0	0	46	37	9	0	0	1	1	.381	.435	1.316
14	Cubs	.881	1	5/29/1962	CHC	vs	MIL	L 9-11	0	1.000	42	9	15	4	0	6	9	0	0	7	0	0	42	37	10	0	0	0	0	.357	.357	1.238
15	Red Sox	.875	1	5/21/1995	BOS	vs	CLE	L 10-12	0	1.000	40	10	18	8	0	3	10	2	2	7	1	0	46	35	11	0	2	0	3	.450	.478	1.353
16	Cubs	.875	1	5/17/1979	CHC	vs	PHI	L 22-23	0	1.000	56	22	26	3	1	6	22	3	0	4	0	0	59	49	10	0	0	0	2	.464	.492	1.367
17	White Sox	.872	1	6/25/2016	CWS	vs	TOR	L 8-10	0	1.000	39	8	12	1	0	7	8	1	0	11	1	0	40	34	8	0	0	0	1	.308	.325	1.197
18	Indians	.868	1	8/26/2004	CLE	vs	CWS	L 9-14	0	1.000	38	9	14	3	2	4	9	3	0	6	0	0	42	33	9	0	1	0	2	.368	.405	1.273
19	Braves	.868	1	6/8/1961	MIL	@	CIN	L 8-10	0	1.000	38	8	13	2	0	6	8	5	1	4	0	0	44	33	8	0	0	1	2	.342	.432	1.300
20	Yankees	.868	1	6/23/1950	NYY	@	DET	L 9-10	0	1.000	38	9	13	2	0	6	9	2	0	5	0	0	42	33	8	2		0	0	.342	.375	1.243
21	Robins	.868	1	7/4/1929	BKN	vs	PHN	L 12-14	0	1.000	38	12	16	6	1	3	12	3	1	2	1	0	46	33	10	4				.421	.476	1.345
22	Indians	.865	1	6/12/2000	CLE	vs	CWS	L 7-8	0	1.000	37	7	13	2	1	5	7	8	0	10	2	1	45	32	8	0	0	0	2	.351	.467	1.332
23	Phillies	.865	1	4/27/1965	PHI	@	SFG	L 13-14	0	1.000	37	13	13	1	0	6	13	6	2	6	0	0	47	32	7	1	1	0	1	.351	.457	1.321
24	Expos	.860	1	4/19/1999	MON	@	COL	L 10-11	0	1.000	43	10	20	6	1	3	10	2	1	6	1	0	46	37	10	0	0	0	2	.465	.500	1.360
25	Orioles	.854	1	9/27/2022	BAL	@	BOS	L 9-13	0	1.000	41	9	15	2	3	4	9	2	1	8	2	0	44	35	9	0	0	0	1	.366	.409	1.263