Tony Esposito had the highest save percentage by a goalie against a team in the 1971 playoffs with 3+ games played, at .942 versus the Rangers in the 1971 playoff series.

best save percentage by a player vs one team in a single postseason with at least 3 games played in 1971

	NAME	SV%	GP	OPP	SEASON	TM	W	L	SA	SV	GA	GAA	SHO	MIN
1	Tony Esposito T. Esposito	.942	7	Rangers	1970-71	CHI	4	3	242	228	14	1.79	1	469
2	Tony Esposito T. Esposito	.939	4	Flyers	1970-71	CHI	4	0	132	124	8	2.00	0	240
3	Gump Worsley G. Worsley	.928	3	Blues	1970-71	MNS	3	0	83	77	6	2.00	0	180
4	Bernie Parent B. Parent	.923	4	Rangers	1970-71	TOR	2	2	117	108	9	2.31	0	234
5	Ken Dryden K. Dryden	.921	7	Black Hawks	1970-71	MTL	4	3	228	210	18	2.46	0	439
6	Cesare Maniago C. Maniago	.920	3	Blues	1970-71	MNS	1	2	100	92	8	2.68	0	179
7	Ernie Wakely E. Wakely	.920	3	North Stars	1970-71	STL	2	1	87	80	7	2.36	1	178
8	Ed Giacomin E. Giacomin	.914	7	Black Hawks	1970-71	NYR	3	4	187	171	16	2.14	0	448
9	Ken Dryden K. Dryden	.912	7	Bruins	1970-71	MTL	4	3	285	260	25	3.58	0	418
10	Ed Giacomin E. Giacomin	.910	5	Maple Leafs	1970-71	NYR	4	1	133	121	12	2.33	0	309
11	Ken Dryden K. Dryden	.908	6	North Stars	1970-71	MTL	4	2	196	178	18	3.00	0	360
12	Tony Esposito T. Esposito	.904	7	Canadiens	1970-71	CHI	3	4	208	188	20	2.74	1	439
13	Jacques Plante J. Plante	.901	3	Rangers	1970-71	TOR	0	2	71	64	7	3.16	0	133
14	Gerry Cheevers G. Cheevers	.892	6	Canadiens	1970-71	BOS	3	3	194	173	21	3.51	0	359
15	Cesare Maniago C. Maniago	.882	5	Canadiens	1970-71	MNS	2	3	170	150	20	4.00	0	300
16	Glenn Hall G. Hall	.864	3	North Stars	1970-71	STL	0	3	66	57	9	3.05	0	177