I don't have anything for this season, but Victor Wembanyama had the highest usage percentage for the Spurs versus the Nuggets in 2024-25, at 32.0 percent.

Interpreted as:

most usage by a player on spurs vs nuggets this regular season

	NAME	USG%	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
1	Victor Wembanyama V. Wembanyama	32.0	2024-25	SAS	2	36.2	27.5	20.5	3.5	1.0	3.0	10.5	20.5	51.2	3.0	9.0	33.3	3.5	4.0	87.5	61.8	1.5	19.0	5.5	72	55	41	7	2	6	11	9	+17
2	Malaki Branham M. Branham	31.5	2024-25	SAS	1	20.3	13.0	1.0	2.0	1.0	0.0	6.0	15.0	40.0	1.0	6.0	16.7	0.0	0.0		43.3	0.0	1.0	0.0	20	13	1	2	1	0	0	3	-1
3	Sandro Mamukelashvili S. Mamukelashvili	25.4	2024-25	SAS	1	23.1	16.0	10.0	0.0	1.0	0.0	5.0	11.0	45.5	2.0	5.0	40.0	4.0	4.0	100.0	62.7	3.0	7.0	1.0	23	16	10	0	1	0	1	1	+18
4	Devin Vassell D. Vassell	24.3	2024-25	SAS	2	37.4	18.5	7.0	4.5	1.5	0.0	7.5	18.0	41.7	1.0	5.0	20.0	2.5	4.0	62.5	46.8	2.5	4.5	2.0	75	37	14	9	3	0	4	0	-30
5	Stephon Castle S. Castle	23.1	2024-25	SAS	3	24.4	11.0	6.3	5.3	0.0	0.0	4.3	12.0	36.1	1.3	4.7	28.6	1.0	1.7	60.0	43.2	2.0	4.3	0.7	73	33	19	16	0	0	2	5	+11
6	Blake Wesley B. Wesley	21.9	2024-25	SAS	1	20.9	15.0	2.0	1.0	0.0	0.0	5.0	6.0	83.3	3.0	3.0	100.0	2.0	4.0	50.0	96.6	0.0	2.0	3.0	21	15	2	1	0	0	3	0	+5
7	Zach Collins Z. Collins	21.8	2024-25	SAS	2	12.5	4.0	4.5	0.0	0.5	0.5	2.0	6.5	30.8	0.0	2.0	0.0	0.0	0.0		30.8	2.0	2.5	0.0	25	8	9	0	1	1	0	8	-23
8	Keldon Johnson K. Johnson	20.4	2024-25	SAS	2	26.8	13.0	6.0	1.0	0.0	0.5	4.5	11.0	40.9	2.0	5.5	36.4	2.0	2.5	80.0	53.7	3.0	3.0	1.0	54	26	12	2	0	1	2	2	-9
9	Julian Champagnie J. Champagnie	18.6	2024-25	SAS	3	26.4	13.0	3.7	1.0	0.3	0.3	4.3	9.7	44.8	2.3	6.0	38.9	2.0	2.3	85.7	60.8	1.0	2.7	1.0	79	39	11	3	1	1	3	5	-8
10	Harrison Barnes H. Barnes	18.6	2024-25	SAS	3	31.9	16.7	4.3	3.0	0.3	0.3	6.7	13.0	51.3	2.3	6.3	36.8	1.0	1.0	100.0	62.0	0.3	4.0	0.7	96	50	13	9	1	1	2	5	+10
11	Chris Paul C. Paul	18.3	2024-25	SAS	3	31.4	8.7	4.3	9.0	0.3	1.0	3.7	11.7	31.4	1.3	5.3	25.0	0.0	0.0		37.1	0.0	4.3	2.0	94	26	13	27	1	3	6	5	-2
12	Charles Bassey C. Bassey	11.8	2024-25	SAS	1	3.6	0.0	1.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	1.0	0.0	0.0	4	0	1	0	0	0	0	1	-2
13	Tre Jones T. Jones	10.8	2024-25	SAS	2	17.5	5.5	2.5	4.0	0.0	0.0	2.5	4.0	62.5	0.5	1.0	50.0	0.0	0.0		68.8	0.5	2.0	0.5	35	11	5	8	0	0	1	4	+10
14	Jeremy Sochan J. Sochan	6.6	2024-25	SAS	1	25.8	5.0	8.0	0.0	1.0	0.0	2.0	4.0	50.0	1.0	2.0	50.0	0.0	0.0		62.5	2.0	6.0	0.0	26	5	8	0	1	0	0	1	+3
15	Jordan McLaughlin J. McLaughlin	5.0	2024-25	SAS	1	17.0	3.0	0.0	2.0	1.0	0.0	1.0	2.0	50.0	1.0	2.0	50.0	0.0	0.0		75.0	0.0	0.0	0.0	17	3	0	2	1	0	0	0	+8
16	Bismack Biyombo B. Biyombo	2.7	2024-25	SAS	1	31.2	0.0	7.0	0.0	0.0	2.0	0.0	2.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0	7.0	0.0	31	0	7	0	0	2	0	3	-12