Rick St. Croix has the highest goals-against average in a single NHL playoff run, with a 225.00 average in 1982-83.

	NAME	GAA	SEASON	TM	GP	GS	W	L	T	OTL	SA	SV	SV%	GA	SHO	MIN
1	Rick St. Croix R. St. Croix	225.00	1982-83	TOR	1		0	0			1	0	.000	1	0	0
2	Rick Wamsley R. Wamsley	25.53	1990-91	CGY	1		0	0	0		2	1	.500	1	0	2
3	David Rittich D. Rittich	19.91	2021-22	NSH	1	1	0	1	0	0	13	8	.615	5	0	15
4	Corrado Micalef C. Micalef	16.44	1983-84	DET	1		0	0			5	3	.600	2	0	7
5	Doug Soetaert D. Soetaert	15.00	1983-84	WIN	1		0	1			19	14	.737	5	0	20
6	Mike Smith M. Smith	11.31	2019-20	EDM	1	1	0	1	0	0	23	18	.783	5	0	27
7	Rick Wamsley R. Wamsley	11.04	1989-90	CGY	1		0	1	0		23	14	.609	9	0	49
8	Warren Skorodenski W. Skorodenski	10.91	1984-85	CHI	2		0	0			28	22	.786	6	0	33
9	David Rittich D. Rittich	10.85	2019-20	CGY	1	0	0	1	0	0	9	6	.667	3	0	17
10	Ty Conklin T. Conklin	10.71	2005-06	EDM	1	0	0	1			3	2	.667	1	0	6
11	Darren Eliot D. Eliot	10.50	1986-87	LAK	1		0	0			29	22	.759	7	0	40
12	Doug Keans D. Keans	10.50	1979-80	LAK	1		0	1			20	13	.650	7	0	40
13	Jiri Crha J. Crha	10.23	1980-81	TOR	3		0	2			44	33	.750	11	0	65
14	Andre Racicot A. Racicot	9.86	1990-91	MTL	2		0	1	0		14	12	.857	2	0	12
15	Erik Ersberg E. Ersberg	9.28	2009-10	LAK	1	0	0	0			4	2	.500	2	0	13
16	Bruce Gamble B. Gamble	9.08	1968-69	TOR	3		0	2			66	53	.803	13	0	86
17	Charlie Lindgren C. Lindgren	9.07	2024-25	WSH	1	0	0	0	0	0	5	4	.800	1	0	7
18	Ryan Miller R. Miller	9.00	2017-18	ANA	1	0	0	0	0	0	12	9	.750	3	0	20
19	Peter Budaj P. Budaj	9.00	2013-14	MTL	1	0	0	0			8	5	.625	3	0	20
20	Roland Melanson R. Melanson	9.00	1987-88	LAK	1		0	1	0		50	41	.820	9	0	60
21	Marco Baron M. Baron	9.00	1980-81	BOS	1		0	1			12	9	.750	3	0	20
22	Gilles Gilbert G. Gilbert	9.00	1976-77	BOS	1		0	1			7	4	.571	3	0	20
23	Ross Brooks R. Brooks	9.00	1972-73	BOS	1		0	0			11	8	.727	3	0	20
24	Corrado Micalef C. Micalef	8.67	1984-85	DET	2		0	0			18	12	.667	6	0	42
25	Kirk McLean K. McLean	8.62	1995-96	VAN	1		0	1	0		12	9	.750	3	0	21