The Philadelphia Flyers managed a win percentage of .593 before 1989-90.

	TEAM	W%	SEASON	GP	W	L	T	PTS	PTS%	G	GA	DIFF	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Flyers	.493	1967-68	74	31	32	11	73	.493	173	179	-6			25.45	9.2	33.19	.927
2	Flyers	.401	1968-69	76	20	35	21	61	.401	174	225	-51			28.72	8.0	36.09	.918
3	Flyers	.382	1969-70	76	17	35	24	58	.382	197	225	-28			31.84	8.1	35.61	.917
4	Flyers	.468	1970-71	78	28	33	17	73	.468	207	225	-18			31.08	8.5	31.79	.909
5	Flyers	.423	1971-72	78	26	38	14	66	.423	200	236	-36			30.28	8.5	33.63	.910
6	Flyers	.545	1972-73	78	37	30	11	85	.545	296	256	40			33.63	11.3	34.40	.905
7	Flyers	.718	1973-74	78	50	16	12	112	.718	273	164	109			33.88	10.3	28.36	.926
8	Flyers	.706	1974-75	80	51	18	11	113	.706	293	181	112			33.70	10.9	25.25	.910
9	Flyers	.738	1975-76	80	51	13	16	118	.738	348	209	139			37.46	11.6	27.78	.906
10	Flyers	.700	1976-77	80	48	16	16	112	.700	323	213	110			31.56	12.8	26.84	.901
11	Flyers	.656	1977-78	80	45	20	15	105	.656	296	200	96	23.6	80.6	32.94	11.2	25.50	.902
12	Flyers	.594	1978-79	80	40	25	15	95	.594	281	248	33	25.4	79.0	31.74	11.1	25.58	.879
13	Flyers	.725	1979-80	80	48	12	20	116	.725	327	254	73	16.2	78.8	33.81	12.1	27.70	.885
14	Flyers	.606	1980-81	80	41	24	15	97	.606	313	249	64	27.0	80.2	33.09	11.8	28.99	.893
15	Flyers	.544	1981-82	80	38	31	11	87	.544	325	313	12	26.5	73.3	34.01	11.9	29.99	.870
16	Flyers	.663	1982-83	80	49	23	8	106	.663	326	240	86	21.7	81.8	34.46	11.8	26.44	.887
17	Flyers	.613	1983-84	80	44	26	10	98	.613	350	290	60	20.2	76.6	36.75	11.9	28.65	.873
18	Flyers	.706	1984-85	80	53	20	7	113	.706	348	241	107	22.3	79.8	33.70	12.9	29.83	.899
19	Flyers	.688	1985-86	80	53	23	4	110	.688	335	241	94	23.6	82.8	34.13	12.3	28.89	.896
20	Flyers	.625	1986-87	80	46	26	8	100	.625	310	245	65	19.0	82.2	30.18	12.8	30.71	.900
21	Flyers	.531	1987-88	80	38	33	9	85	.531	292	292	0	18.0	81.1	31.03	11.8	30.55	.881
22	Flyers	.500	1988-89	80	36	36	8	80	.500	307	285	22	26.7	81.5	29.86	12.9	30.55	.883
	Total	.593		1,738	890	565	283	2,063	.593	6,294	5,211	1,083	22.3	79.9	32.46	11.2	29.78	.899