John Collins has his most career points per game versus the Mavericks, with 21.2 per game.

john collins highest career ppg by opponent

OPP	PPG	GP	MPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Mavericks	21.2	14	30.7	10.0	1.4	0.9	0.6	1.1	9.0	15.2	59.2	1.4	3.1	44.2	1.9	2.9	63.4	430	297	140	19	12	8	15	25	-17
Warriors	20.2	9	31.7	9.1	1.8	0.4	0.9	1.3	7.7	11.8	65.1	1.4	3.0	48.1	3.4	4.1	83.8	286	182	82	16	4	8	12	21	-16
Thunder	19.3	12	29.1	7.2	1.3	0.5	1.1	1.2	8.1	12.6	64.2	0.9	2.8	32.4	2.3	2.6	87.1	349	232	86	16	6	13	14	39	-70
Nets	18.8	17	29.0	8.8	1.4	0.4	0.9	1.8	7.4	13.4	54.8	1.1	3.1	34.0	3.1	4.1	75.4	493	320	150	23	7	15	30	50	-79
Lakers	16.8	12	29.3	8.9	1.0	1.0	1.0	1.2	6.9	12.3	56.1	0.9	2.6	35.5	2.0	2.8	72.7	351	201	107	12	12	12	14	45	-32
Rockets	16.5	13	27.8	8.8	0.8	0.8	1.5	1.2	5.9	10.2	57.9	1.0	2.3	43.3	3.6	4.2	87.0	362	214	115	11	10	19	15	31	-52
Wizards	16.2	23	28.0	8.7	1.7	0.3	1.2	1.3	6.3	10.4	60.0	1.0	2.3	40.7	2.7	3.4	78.5	643	372	199	38	7	27	30	74	+83
Grizzlies	16.1	11	29.1	7.2	1.5	1.1	1.4	1.6	5.8	10.7	54.2	1.5	2.8	51.6	3.0	4.0	75.0	320	177	79	16	12	15	18	26	+75
Pacers	16.1	18	27.8	8.1	1.4	0.3	1.1	1.5	6.3	10.6	59.7	1.1	2.4	43.2	2.3	3.1	76.4	500	289	145	26	5	19	27	54	+20
Heat	16.0	21	28.2	7.3	1.5	0.3	0.9	1.5	6.3	11.1	56.4	1.2	3.0	41.9	2.2	2.8	81.0	593	337	153	32	7	18	31	64	-42
Magic	16.0	21	29.7	9.0	1.5	0.6	1.1	1.5	6.0	11.3	53.4	1.2	3.0	40.6	2.6	3.3	78.6	624	335	190	32	12	24	32	64	+36
Bulls	15.9	12	27.3	7.7	1.1	1.1	1.2	1.4	6.4	11.3	57.0	1.0	3.2	31.6	2.1	2.6	80.6	328	191	92	13	13	14	17	34	+27
Hornets	15.8	17	30.9	8.8	1.7	0.5	1.1	1.6	6.2	10.5	59.6	0.6	2.1	27.8	2.7	3.7	73.0	525	268	149	29	9	18	27	65	-42
Suns	15.7	15	29.2	8.9	1.1	0.6	0.7	1.1	5.8	10.7	54.0	1.3	2.9	44.2	2.9	3.3	87.8	437	236	134	17	9	11	16	45	+2
Pistons	15.7	18	28.5	8.1	1.2	0.7	1.4	1.7	6.3	11.9	53.3	0.8	2.4	34.1	2.2	2.8	78.4	512	283	145	21	13	25	31	58	+42
Clippers	15.7	13	29.8	8.2	1.5	0.9	1.4	0.6	6.0	10.8	55.7	1.0	2.8	35.1	2.7	3.2	85.4	387	204	106	20	12	18	8	43	-57
Nuggets	15.4	12	28.6	7.3	2.2	0.4	0.8	0.7	6.0	12.3	48.6	0.8	3.2	26.3	2.6	3.8	68.9	343	185	88	26	5	9	8	37	-31
Knicks	15.4	16	31.5	8.0	1.6	0.7	0.8	1.1	6.1	12.3	49.2	1.2	3.4	35.2	2.1	2.6	80.5	504	246	128	25	11	13	18	48	-9
Celtics	15.2	20	28.8	7.7	1.4	0.6	1.1	2.2	5.8	10.5	55.5	0.6	1.9	28.9	3.1	3.8	81.3	576	304	153	27	11	21	44	66	-124
76ers	14.9	21	29.8	7.8	1.8	0.8	1.0	1.4	5.7	10.5	54.5	1.3	3.1	41.5	2.1	3.2	67.2	625	312	164	37	16	21	29	63	-11
Timberwolves	14.6	14	30.0	8.0	1.3	0.3	0.8	1.7	5.9	11.1	53.2	0.9	2.6	33.3	1.9	2.4	79.4	420	205	112	18	4	11	24	50	-26
Spurs	14.4	12	26.2	6.4	0.9	0.7	0.7	1.7	5.3	10.7	49.2	0.8	2.9	28.6	3.1	3.3	92.5	314	173	77	11	8	8	20	32	-6
Bucks	14.3	18	28.8	7.8	1.6	0.4	1.1	1.3	5.7	11.7	49.0	1.2	3.8	30.9	1.7	2.6	67.4	519	258	141	28	7	19	23	48	-56
Cavaliers	14.3	13	27.5	7.6	1.4	0.7	0.8	1.5	5.4	10.2	53.0	1.2	2.6	44.1	2.4	3.0	79.5	358	186	99	18	9	11	20	42	-20
Trail Blazers	13.8	12	29.8	7.1	2.0	0.6	1.2	1.3	5.5	10.9	50.4	0.9	2.8	32.4	1.8	2.5	73.3	358	165	85	24	7	14	16	36	-12