The Washington Capitals have the worst winning percentage by a team in a season, winning 13.1 percent of the time in 1974-75.

	TEAM	W%	SEASON	GP	W	L	T	OTL	PTS	PTS%	SOW	SOL	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Capitals	.131	1974-75	80	8	67	5		21	.131			181	446	-265			23.06	9.8	38.30	.854
2	Quakers	.136	1930-31	44	4	36	4		12	.136			76	184	-108
3	Sharks	.143	1992-93	84	11	71	2		24	.143			218	414	-196	16.1	76.6	28.38	9.1	36.67	.866
4	Senators	.143	1992-93	84	10	70	4		24	.143			202	395	-193	14.7	75.0	27.15	8.9	31.83	.852
5	Pirates	.148	1929-30	44	5	36	3		13	.148			102	185	-83
6	Bulldogs	.167	1919-20	24	4	20	0		8	.167			91	177	-86
7	Rangers	.170	1943-44	50	6	39	5		17	.170			162	310	-148
8	Islanders	.192	1972-73	78	12	60	6		30	.192			170	347	-177			25.03	8.7	34.55	.871
9	Black Hawks	.193	1927-28	44	7	34	3		17	.193			68	134	-66
10	Nordiques	.194	1989-90	80	12	61	7		31	.194			240	407	-167	18.9	74.3	28.76	10.4	34.42	.852
11	Jets	.200	1980-81	80	9	57	14		32	.200			246	400	-154	17.3	74.2	28.28	10.9	34.90	.857
12	Capitals	.200	1975-76	80	11	59	10		32	.200			224	394	-170			24.41	11.5	36.94	.867
13	Bruins	.200	1924-25	30	6	24	0		12	.200			49	119	-70
14	Thrashers	.213	1999-00	82	14	57	7	4	39	.238			170	313	-143	12.6	80.3	25.79	8.0	31.01	.877
15	Senators	.220	1993-94	84	14	61	9		37	.220			201	397	-196	14.5	73.3	25.58	9.4	33.05	.857
16	Black Hawks	.221	1953-54	70	12	51	7		31	.221			133	242	-109
17	Scouts	.225	1975-76	80	12	56	12		36	.225			190	351	-161			27.40	8.7	36.17	.879
18	Golden Seals	.231	1973-74	78	13	55	10		36	.231			195	342	-147			25.55	9.8	34.62	.873
19	Sharks	.232	2023-24	82	19	54		9	47	.287	1	5	180	326	-146	20.2	75.4	25.23	8.7	35.13	.887
20	Penguins	.238	1983-84	80	16	58	6		38	.238			254	390	-136	20.9	76.0	28.34	11.2	36.35	.866
21	Red Wings	.239	2019-20	71	17	49		5	39	.275	3	2	142	265	-123	14.9	74.3	27.10	7.4	32.80	.886
22	Senators	.240	1994-95	48	9	34	5		23	.240			117	174	-57	14.4	80.4	25.98	9.4	32.52	.889
23	Sharks	.244	1991-92	80	17	58	5		39	.244			219	359	-140	17.1	78.1	29.25	9.4	36.25	.876
24	Senators	.250	1995-96	82	18	59	5		41	.250			191	291	-100	12.3	77.9	26.88	8.7	30.54	.884
25	Red Wings	.250	1985-86	80	17	57	6		40	.250			266	415	-149	20.9	71.0	28.50	11.7	32.85	.842