what team has the best record in the first round of the stanley cup playoffs

The Vegas Golden Knights have a 28-19-0 record in the playoffs all-time.

	TEAM	REC	PTS	GP	W	L	T	OTL	PTS%	G	GA	DIFF	S/GP	S%	SA/GP	SV%
1	Golden Knights	28-19-0	249	470	28	19	0	0	.265	83	110	-27	2.11	8.4	2.92	.920
2	Devils	116-94-0-0	820	2,162	116	94	0	0	.190	307	447	-140	1.64	8.7	2.54	.919
3	Lightning	67-50-0-0	522	1,332	67	50	0	0	.196	167	296	-129	1.56	8.0	2.71	.918
4	Penguins	119-99-0-0	1,580	2,642	119	99	0	0	.299	580	612	-32	1.96	11.2	2.50	.907
5	Oilers	75-32-0-0	1,286	2,330	75	32	0	0	.276	457	334	123	1.68	11.7	1.38	.896
6	Ducks	34-19-0-0	683	1,371	34	19	0	0	.249	257	120	137	1.92	9.7	1.13	.923
7	Canucks	43-48-0-0	852	1,762	43	48	0		.242	317	258	59	1.69	10.7	1.58	.907
8	Bruins	57-46-0-0	1,402	2,507	57	46	0	0	.280	524	242	282	2.00	10.5	1.29	.925
9	Canadiens	51-57-0-0	1,490	3,002	51	57	0	0	.248	587	284	303	1.72	11.3	1.12	.915
10	Stars	43-40-0-0	1,239	2,625	43	40	0	0	.236	440	228	212	1.89	8.9	0.93	.907
11	Hurricanes	23-18-0-0	700	1,662	23	18			.211	281	96	185	1.89	8.9	0.70	.917
12	Flyers	37-31-0-0	1,591	2,937	37	31	0		.271	650	178	472	2.05	10.8	0.68	.911
13	Wild	10-23-0-0	305	798	10	23	0	0	.191	115	91	24	1.82	7.9	1.14	.900
14	Capitals	31-39-0-0	1,211	2,484	31	39	0	0	.244	445	169	276	2.04	8.8	0.87	.922
15	Sabres	19-21-0-0	791	1,590	19	21	0		.249	285	139	146	1.79	10.0	0.71	.877
16	Islanders	21-24-0-0	1,150	1,981	21	24	0	0	.290	469	115	354	2.04	11.6	0.71	.918
17	Blues	15-15-0-0	1,080	2,100	15	15	0		.257	391	77	314	2.00	9.3	0.41	.910
18	Rangers	16-13-0-0	1,140	2,444	16	13			.233	429	73	356	1.82	9.7	0.37	.920
19	Maple Leafs	11-17-0-0	1,012	1,939	11	17	0	0	.261	413	83	330	2.07	10.3	0.43	.900
20	Flames	4-9-0-0	744	1,370	4	9	0		.272	265	53	212	1.98	9.8	0.28	.861
21	Panthers	3-5-0-0	522	1,045	3	5	0	0	.250	197	19	178	1.94	9.7	0.27	.934
22	Senators	3-6-0-0	479	1,093	3	6	0		.219	162	26	136	1.84	8.1	0.27	.911
23	Avalanche	5-9-0-0	1,373	2,111	5	9	0	0	.325	531	43	488	2.11	11.9	0.21	.901
24	Kings	2-4-0-0	710	1,270	2	4	0		.280	286	23	263	2.07	10.9	0.17	.892
25	Red Wings	2-1-0-0	759	1,639	2	1			.232	271	12	259	1.87	8.8	0.05	.862