Bruce Bowen has the highest steal percentage + block percentage in a season, with 77.79 in his rookie season in 1996-97.

Interpreted as:

highest steal% + block% by a player single season

	NAME	STL%+BLK%	STL%	BLK%	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	Bruce Bowen B. Bowen	77.79	0.0	77.8	1996-97	MIA	1	1.0	0.0	0.0	0.0	0.0	1.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	0.0	0.0	1	0	0	0	0	1	0	0	+3
2	Stanley Umude S. Umude	68.34	24.2	44.1	2022-23	DET	1	2.0	2.0	0.0	0.0	1.0	1.0	0.0	1.0	0.0	0.0	1.0	0.0	2.0	2.0	100.0	53.2	0.0	0.0	0.0	2	2	0	0	1	1	0	0	+3
3	Jaden Springer J. Springer	29.97	0.0	30.0	2021-22	PHI	2	3.0	1.0	1.0	0.0	0.0	1.0	0.5	0.5	100.0	0.0	0.0		0.0	0.0		100.0	0.5	0.5	0.5	6	2	2	0	0	2	1	0	-8
4	Sim Bhullar S. Bhullar	26.27	0.0	26.3	2014-15	SAC	3	1.0	0.7	0.3	0.3	0.0	0.3	0.3	0.7	50.0	0.0	0.0		0.0	0.0		50.0	0.0	0.3	0.0	3	2	1	1	0	1	0	0	+1
5	Matt Mooney M. Mooney	25.02	25.0	0.0	2021-22	NYK	1	2.0	0.0	0.0	0.0	1.0	0.0	0.0	1.0	0.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0	0.0	1.0	2	0	0	0	1	0	1	0	-5
6	Jordan Bell J. Bell	24.41	24.4	0.0	2021-22	CHI	1	2.0	0.0	1.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			1.0	0.0	0.0	2	0	1	0	1	0	0	2	+1
7	Claude Gregory C. Gregory	24.23	24.2	0.0	1985-86	WAS	2	1.0	1.0	1.0	0.0	0.5	0.0	0.5	1.0	50.0	0.0	0.0		0.0	0.0		50.0	1.0	0.0	1.0	2	2	2	0	1	0	2	1
8	Peter Aluma P. Aluma	22.68	10.0	12.7	1998-99	SAC	2	2.5	1.0	1.0	0.0	0.5	0.5	0.5	1.0	50.0	0.0	0.0		0.0	0.0		50.0	0.5	0.5	1.0	5	2	2	0	1	1	2	4	-7
9	Brice Johnson B. Johnson	20.16	11.1	9.1	2016-17	LAC	3	3.0	1.3	1.0	0.3	0.7	0.3	0.7	2.3	28.6	0.0	0.0		0.0	0.0		28.6	0.3	0.7	0.3	9	4	3	1	2	1	1	0	+7
10	Sekou Doumboya S. Doumboya	20.12	9.0	11.1	2021-22	LAL	2	8.0	7.0	3.0	0.0	1.5	1.0	2.5	4.0	62.5	0.5	1.0	50.0	1.5	2.0	75.0	71.7	1.0	2.0	1.0	16	14	6	0	3	2	2	1	+24
11	Hamidou Diallo H. Diallo	18.7	18.7	0.0	2023-24	WAS	2	2.5	1.0	1.0	0.5	1.0	0.0	0.5	1.0	50.0	0.0	0.0		0.0	0.0		50.0	1.0	0.0	0.5	5	2	2	1	2	0	1	1	+4
12	Usman Garuba U. Garuba	17.76	2.7	15.1	2023-24	GSW	6	3.0	0.5	1.2	0.2	0.2	0.5	0.2	1.0	16.7	0.0	0.2	0.0	0.2	0.3	50.0	21.8	0.5	0.7	0.3	18	3	7	1	1	3	2	2	-11
13	Joe Stephens J. Stephens	17.46	17.5	0.0	1996-97	HOU	2	4.5	1.5	1.5	0.0	1.5	0.0	0.5	2.5	20.0	0.5	1.5	33.3	0.0	0.0		30.0	1.0	0.5	1.5	9	3	3	0	3	0	3	3	-4
14	Edy Tavares E. Tavares	17.28	0.0	17.3	2016-17	TOT	2	14.0	4.0	5.5	0.5	0.0	3.0	2.0	2.5	80.0	0.0	0.0		0.0	1.5	0.0	63.3	2.0	3.5	1.0	28	8	11	1	0	6	2	3	+10
15	Marques Bolden M. Bolden	16.22	16.2	0.0	2019-20	CLE	1	3.0	0.0	2.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	2.0	0.0	3	0	2	0	1	0	0	1	+4
16	Javin DeLaurier J. DeLaurier	16.01	16.0	0.0	2021-22	MIL	1	3.0	0.0	1.0	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.0			0.0	1.0	0.0	3	0	1	0	1	0	0	1	+4
17	Torgeir Bryn T. Bryn	15.65	9.7	6.0	1989-90	LAC	3	3.3	1.3	0.7	0.0	0.7	0.3	0.0	0.7	0.0	0.0	0.0		1.3	2.0	66.7	43.1	0.0	0.7	0.3	10	4	2	0	2	1	1	5
18	Shaquille Harrison S. Harrison	15.61	0.0	15.6	2023-24	MEM	3	2.0	0.7	0.7	0.0	0.0	0.3	0.3	0.7	50.0	0.0	0.0		0.0	0.0		50.0	0.0	0.7	0.0	6	2	2	0	0	1	0	0	-11
19	Dan Godfread D. Godfread	15.29	2.6	12.7	1990-91	MIN	10	2.0	1.3	0.2	0.0	0.1	0.4	0.5	1.2	41.7	0.0	0.1	0.0	0.3	0.4	75.0	47.2	0.0	0.2	0.0	20	13	2	0	1	4	0	5
20	Jordan Mickey J. Mickey	15.08	0.0	15.1	2015-16	BOS	16	3.6	1.3	0.8	0.1	0.0	0.7	0.5	1.4	36.4	0.0	0.0		0.3	0.6	50.0	39.8	0.4	0.4	0.1	57	21	13	1	0	11	1	5	+6
21	Ike Anigbogu I. Anigbogu	14.84	0.0	14.8	2018-19	IND	3	2.0	0.0	1.0	0.3	0.0	0.3	0.0	1.0	0.0	0.0	0.0		0.0	0.0		0.0	0.3	0.7	0.3	6	0	3	1	0	1	1	0	-2
22	Mouhamadou Gueye M. Gueye	14.42	1.2	13.2	2023-24	TOR	11	10.9	2.4	2.1	0.5	0.3	1.6	1.0	3.5	28.9	0.0	0.3	0.0	0.4	0.8	44.4	31.0	1.1	1.0	1.1	120	26	23	5	3	18	12	15	-80
23	Gary Payton II G. Payton II	14.14	8.9	5.3	2018-19	WAS	3	5.3	3.7	0.7	1.3	1.0	0.3	1.7	2.7	62.5	0.3	0.7	50.0	0.0	0.0		68.8	0.3	0.3	0.3	16	11	2	4	3	1	1	2	+11
24	Tacko Fall T. Fall	14.11	0.4	13.7	2020-21	BOS	18	7.6	2.6	2.9	0.2	0.1	1.1	1.2	1.6	72.4	0.0	0.0		0.3	0.8	33.3	66.0	0.9	2.0	0.3	136	47	52	3	1	20	6	22	+26
25	Robert Williams III R. Williams III	14.03	1.5	12.5	2018-19	BOS	31	9.1	2.6	2.6	0.2	0.3	1.3	1.2	1.6	70.6	0.0	0.0		0.3	0.5	60.0	70.3	0.9	1.7	0.3	283	81	81	7	9	40	10	36	-50