The Tampa Bay Lightning had the highest goal differential per game played by a team in 2018-19, with 1.2.

Interpreted as:

highest average margin of victory per game 2019

	TEAM	DIFF/GP	DIFF	GP	SEASON	W	L	OTL	PTS	PTS%	SOW	SOL	G	GA	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Lightning	1.2	98	82	2018-19	62	16	4	128	.780	6	1	319	221	28.2	85.0	31.95	12.2	32.11	.916
2	Flames	0.8	66	82	2018-19	50	25	7	107	.652	0	4	289	223	19.3	79.7	32.39	10.9	28.07	.903
3	Bruins	0.55	45	82	2018-19	49	24	9	107	.652	2	3	257	212	25.9	79.9	32.68	9.6	29.46	.912
4	Maple Leafs	0.45	37	82	2018-19	46	28	8	100	.610	0	2	286	249	21.8	79.9	33.37	10.5	33.13	.908
5	Penguins	0.4	33	82	2018-19	44	26	12	100	.610	2	3	271	238	24.6	79.7	33.30	9.9	33.28	.913
6	Islanders	0.39	32	82	2018-19	48	27	7	103	.628	5	5	223	191	14.5	79.9	28.78	9.4	30.90	.925
7	Sharks	0.38	31	82	2018-19	46	27	9	101	.616	0	3	289	258	23.7	80.8	33.02	10.7	28.33	.889
8	Jets	0.33	27	82	2018-19	47	30	5	99	.604	2	1	270	243	24.8	79.2	31.18	10.6	33.43	.911
9	Capitals	0.32	26	82	2018-19	48	26	8	104	.634	4	1	274	248	20.8	78.9	30.39	11.0	31.51	.904
10	Blue Jackets	0.3	25	82	2018-19	47	31	4	98	.598	2	1	256	231	15.4	85.0	31.61	9.9	29.49	.904
11	Blues	0.29	24	82	2018-19	45	28	9	99	.604	3	3	244	220	21.1	81.5	31.76	9.4	28.60	.906
12	Predators	0.29	24	82	2018-19	47	29	6	100	.610	4	2	236	212	12.9	82.1	32.66	8.8	29.99	.914
13	Hurricanes	0.27	22	82	2018-19	46	29	7	99	.604	2	2	243	221	17.8	81.6	34.41	8.6	28.57	.906
14	Golden Knights	0.22	18	82	2018-19	43	32	7	93	.567	3	2	246	228	16.8	80.9	34.32	8.7	29.26	.905
15	Avalanche	0.17	14	82	2018-19	38	30	14	90	.549	2	2	258	244	22.0	78.7	32.63	9.6	31.94	.907
16	Canadiens	0.12	10	82	2018-19	44	30	8	96	.585	3	0	246	236	13.2	80.9	34.10	8.8	31.07	.907
17	Stars	0.11	9	82	2018-19	43	32	7	93	.567	1	2	209	200	21.0	82.8	30.72	8.3	31.60	.923
18	Panthers	-0.11	-9	82	2018-19	36	32	14	86	.524	3	7	264	273	26.8	81.3	32.99	9.8	30.68	.891
19	Coyotes	-0.13	-11	82	2018-19	39	35	8	86	.524	4	3	209	220	16.3	85.0	30.74	8.3	30.82	.913
20	Wild	-0.28	-23	82	2018-19	37	36	9	83	.506	1	4	210	233	20.3	81.7	31.30	8.2	29.50	.904
21	Blackhawks	-0.29	-24	82	2018-19	36	34	12	84	.512	3	1	267	291	20.2	72.7	32.55	10.0	34.78	.898
22	Canucks	-0.35	-29	82	2018-19	35	36	11	81	.494	6	6	219	248	17.1	81.1	29.67	9.0	31.67	.905
23	Flyers	-0.48	-39	82	2018-19	37	37	8	82	.500	3	1	241	280	17.1	78.5	31.50	9.3	32.50	.895
24	Oilers	-0.51	-42	82	2018-19	35	38	9	79	.482	3	3	229	271	21.2	74.8	29.17	9.6	31.70	.896
25	Rangers	-0.56	-46	82	2018-19	32	36	14	78	.476	6	5	221	267	19.4	78.2	29.18	9.2	33.83	.904