The Chicago Black Hawks have the worst record by a team with more than 0 championships in a season, with a record of 14-25-9 in 1937-38.

worst team to win the NHL championship in a regular season

	TEAM	REC	CHAMPS	SEASON	PTS	GP	W	L	T	OTL	PTS%	SOW	SOL	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Black Hawks	14-25-9	1	1937-38	37	48	14	25	9		.385			97	139	-42
2	Maple Leafs	22-25-13	1	1948-49	57	60	22	25	13		.475			147	161	-14
3	Maple Leafs	24-22-4	1	1944-45	52	50	24	22	4		.520			183	161	22
4	Black Hawks	20-17-11	1	1933-34	51	48	20	17	11		.531			88	83	5
5	Rangers	19-16-9	1	1927-28	47	44	19	16	9		.534			94	79	15
6	Maple Leafs	32-27-11	1	1966-67	75	70	32	27	11		.536			204	211	-7			31.24	9.3	34.39	.912
7	Black Hawks	29-24-17	1	1960-61	75	70	29	24	17		.536			198	180	18			31.16	9.1	31.51	.918
8	Canadiens	28-23-19	1	1952-53	75	70	28	23	19		.536			155	148	7
9	Devils	22-18-8	1	1994-95	52	48	22	18	8		.542			136	121	15	13.4	81.2	30.08	9.4	25.38	.901
10	Canadiens	13-11-0	1	1923-24	26	24	13	11	0		.542			59	48	11
11	Penguins	39-32-9	1	1991-92	87	80	39	32	9		.544			343	308	35	21.7	79.9	31.78	13.5	31.48	.878
12	Canadiens	40-33-7	1	1985-86	87	80	40	33	7		.544			330	280	50	25.2	79.4	29.43	14.0	27.11	.871
13	Penguins	41-33-6	1	1990-91	88	80	41	33	6		.550			342	305	37	22.9	79.2	30.20	14.2	34.04	.888
14	Maroons	24-19-5	1	1934-35	53	48	24	19	5		.552			123	92	31
15	Maple Leafs	23-18-7	1	1931-32	53	48	23	18	7		.552			155	127	28
16	Maple Leafs	33-25-12	1	1963-64	78	70	33	25	12		.557			192	172	20			32.13	8.5	30.79	.920
17	Oilers	38-28-14	1	1989-90	90	80	38	28	14		.563			315	283	32	20.6	80.3	28.15	14.0	29.06	.878
18	Rangers	23-17-8	1	1932-33	54	48	23	17	8		.563			135	107	28
19	St. Patricks	13-10-1	1	1921-22	27	24	13	10	1		.563			98	97	1
20	Islanders	39-28-13	1	1979-80	91	80	39	28	13		.569			281	247	34	23.4	77.6	27.71	12.7	29.95	.897
21	Red Wings	38-26-18	1	1996-97	94	82	38	26	18		.573			253	197	56	17.9	86.7	33.24	9.3	25.30	.905
22	Kings	40-27-15	1	2011-12	95	82	40	27		15	.579	6	9	188	170	18	17.0	87.0	30.60	7.5	27.41	.924
23	Canadiens	21-14-9	1	1929-30	51	44	21	14	9		.580			142	114	28
24	Red Wings	24-16-8	1	1935-36	56	48	24	16	8		.583			124	103	21
25	Senators	14-10-0	1	1920-21	28	24	14	10	0		.583			97	75	22