Grant Williams averaged his most career points per game against the Celtics, with 12.5 per game.

grant williams 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	+/-
Celtics	12.5	2	25.4	5.0	2.0	0.0	0.0	0.5	5.5	10.5	52.4	1.0	4.0	25.0	0.5	1.0	50.0	51	25	10	4	0	0	1	4	-3
Pistons	9.8	13	26.1	4.0	1.8	0.4	0.4	0.9	3.5	6.4	54.2	1.2	3.1	40.0	1.7	1.8	91.7	339	128	52	23	5	5	12	36	+3
Hawks	9.1	15	24.1	3.8	1.8	0.5	0.4	1.0	3.5	7.0	49.5	1.1	3.5	32.7	1.1	1.2	88.9	361	137	57	27	8	6	15	42	-62
Raptors	8.7	17	22.5	4.1	1.3	0.4	0.8	1.7	2.9	6.8	43.5	1.1	2.9	36.0	1.8	2.2	78.9	383	148	70	22	6	13	29	45	+6
Grizzlies	8.7	13	24.6	4.4	1.6	0.4	0.5	1.5	2.6	6.1	43.0	1.4	3.4	40.9	2.1	2.4	87.1	320	113	57	21	5	6	19	27	+36
Jazz	8.5	10	21.5	2.4	1.4	0.7	0.7	1.0	3.1	6.7	46.3	1.9	4.2	45.2	0.4	0.6	66.7	215	85	24	14	7	7	10	32	-14
Bulls	8.2	13	20.9	3.9	1.3	0.5	0.4	0.6	2.6	5.5	47.2	1.6	3.6	44.7	1.3	1.6	81.0	271	106	51	17	6	5	8	27	+6
Suns	7.8	11	22.3	2.9	0.7	0.6	0.6	1.2	3.1	6.0	51.5	1.0	3.0	33.3	0.6	0.9	70.0	245	86	32	8	7	7	13	29	+16
Magic	7.6	17	25.4	3.8	1.8	0.5	0.6	1.6	2.5	5.5	46.2	1.2	2.9	40.0	1.4	1.8	80.0	432	130	65	30	8	10	27	48	+29
76ers	7.6	16	20.9	3.1	1.3	0.3	0.3	0.6	2.7	4.7	57.3	1.5	2.6	57.1	0.8	1.2	63.2	334	122	49	21	4	5	9	52	+7
Thunder	7.5	10	24.8	4.5	1.3	0.8	0.8	0.7	2.6	5.7	45.6	1.0	2.9	34.5	1.3	1.6	81.3	248	75	45	13	8	8	7	23	-16
Cavaliers	7.4	14	22.7	4.0	1.1	0.8	0.3	0.6	2.7	5.9	46.3	1.3	3.0	42.9	0.7	1.2	58.8	318	104	56	15	11	4	8	38	-1
Kings	7.2	9	20.9	3.3	1.9	0.7	0.3	0.4	2.4	5.3	45.8	1.6	3.2	48.3	0.8	1.3	58.3	188	65	30	17	6	3	4	18	+25
Nuggets	7.2	9	22.2	3.1	1.1	0.4	1.0	0.8	2.4	6.0	40.7	1.0	2.9	34.6	1.3	1.6	85.7	200	65	28	10	4	9	7	23	-9
Bucks	7.0	16	24.2	4.8	1.6	0.8	0.4	1.4	2.4	5.6	43.3	1.4	3.8	36.7	0.8	1.1	66.7	388	112	76	26	13	6	22	36	+13
Knicks	7.0	14	24.9	3.3	1.6	0.6	0.7	1.1	2.3	5.5	41.6	1.0	3.4	29.2	1.4	1.8	80.0	349	98	46	23	8	10	16	39	-30
Wizards	6.9	14	23.2	4.0	1.8	0.3	0.7	0.9	2.2	5.4	41.3	1.1	3.1	34.9	1.4	1.9	74.1	325	97	56	25	4	10	12	40	+42
Clippers	6.9	11	25.5	4.5	1.7	0.5	0.4	0.7	2.5	4.5	54.0	1.1	2.4	46.2	0.9	1.2	76.9	280	76	49	19	5	4	8	35	-12
Lakers	6.8	10	24.7	3.6	0.7	0.5	0.2	0.7	2.3	4.9	46.9	1.6	3.7	43.2	0.6	0.8	75.0	247	68	36	7	5	2	7	33	-4
Warriors	6.8	10	22.0	4.0	1.0	0.7	0.2	1.1	2.4	4.9	49.0	0.9	2.5	36.0	1.1	1.5	73.3	220	68	40	10	7	2	11	17	-3
Hornets	6.5	15	20.3	3.4	2.4	0.6	0.5	0.6	2.3	5.3	44.3	1.4	3.2	43.8	0.5	0.6	77.8	305	98	51	36	9	7	9	38	+90
Heat	5.9	13	22.1	3.6	1.2	0.6	0.6	1.1	2.2	4.6	46.7	1.1	2.5	42.4	0.5	0.8	63.6	288	77	47	16	8	8	14	30	+1
Timberwolves	5.9	11	24.7	3.4	1.1	0.5	0.5	1.5	2.1	6.3	33.3	0.9	3.6	25.0	0.8	0.9	90.0	272	65	37	12	6	6	16	32	-32
Spurs	5.9	10	20.1	2.9	0.9	0.2	0.9	1.0	2.0	3.8	52.6	1.3	2.6	50.0	0.6	0.8	75.0	201	59	29	9	2	9	10	22	+37
Pacers	5.7	12	19.2	3.0	0.5	0.7	0.3	0.9	1.9	4.5	42.6	0.7	2.3	28.6	1.2	1.8	66.7	230	68	36	6	8	3	11	26	-17