Manute Bol has the best block percentage in a season, at 10.6 percent in his rookie season in 1985-86.

highest block percentage in a season in nba history

Interpreted as:

highest block percentage with a minimum of 2000 minutes played per 82 team games by a player in a season in NBA history

NAME	BLK%	SEASON	TM	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF	+/-
Manute Bol	10.6	1985-86	WAS	80	26.1	3.7	6.0	0.3	0.4	5.0	0.8	1.6	3.5	46.0	0.0	0.0	0.0	0.5	1.1	48.8	2,090	298	477	23	28	397	65	255
Victor Wembanyama	10.0	2023-24	SAS	71	29.7	21.4	10.6	3.9	1.2	3.6	3.7	7.8	16.7	46.5	1.8	5.5	32.5	4.1	5.2	79.6	2,106	1,522	755	274	88	254	260	153	-142
Serge Ibaka	9.8	2011-12	OKC	66	27.2	9.1	7.5	0.4	0.5	3.7	1.2	4.0	7.4	53.5	0.0	0.0	33.3	1.2	1.8	66.1	1,792	603	498	28	33	241	79	179	+203
Hassan Whiteside	9.7	2015-16	MIA	73	29.1	14.2	11.8	0.4	0.6	3.7	1.9	5.7	9.3	60.6	0.0	0.0		2.9	4.5	65.0	2,125	1,040	865	29	44	269	137	201	+85
Shawn Bradley	9.4	1995-96	TOT	79	29.5	11.9	8.1	0.8	0.6	3.6	2.3	4.9	11.1	44.3	0.0	0.1	25.0	2.1	3.1	68.7	2,329	944	638	63	49	288	179	286
Shawn Bradley	8.9	1998-99	DAL	49	26.4	8.6	8.0	0.8	0.7	3.2	1.1	3.4	7.1	48.0	0.0	0.1	0.0	1.8	2.3	74.8	1,294	420	392	40	35	159	56	153	+134
Dikembe Mutombo	8.8	1995-96	DEN	74	36.7	11.0	11.8	1.5	0.5	4.5	2.0	3.8	7.7	49.9	0.0	0.0	0.0	3.3	4.8	69.5	2,713	814	871	108	38	332	150	258
Mark Eaton	8.7	1984-85	UTA	82	34.3	9.7	11.3	1.5	0.4	5.6	2.5	3.7	8.2	44.9	0.0	0.0		2.3	3.3	71.2	2,813	794	927	124	36	456	206	312
Theo Ratliff	8.6	2003-04	TOT	85	31.3	7.9	7.2	0.8	0.6	3.6	1.4	3.1	6.5	48.5	0.0	0.0		1.6	2.6	64.5	2,664	672	614	71	54	307	120	300	-47
Shawn Bradley	8.5	1994-95	PHI	82	28.8	9.5	8.0	0.6	0.7	3.3	1.7	3.8	8.5	45.5	0.0	0.0	0.0	1.8	2.8	63.8	2,365	778	659	53	54	274	142	338
Mark Eaton	8.5	1983-84	UTA	82	26.1	5.6	7.3	1.4	0.3	4.3	1.2	2.4	5.1	46.6	0.0	0.0	0.0	0.9	1.5	59.3	2,139	461	595	113	25	351	98	303
Hassan Whiteside	8.4	2019-20	POR	67	30.0	15.5	13.5	1.2	0.4	2.9	1.8	6.5	10.5	62.1	0.1	0.1	57.1	2.4	3.6	68.6	2,008	1,040	905	78	26	196	120	196	+114
Myles Turner	8.4	2018-19	IND	74	28.6	13.3	7.2	1.6	0.8	2.7	1.4	5.1	10.5	48.7	1.0	2.6	38.8	2.0	2.7	73.6	2,119	984	531	115	60	199	100	195	+121
Shawn Bradley	8.3	1996-97	TOT	73	31.3	13.2	8.4	0.7	0.5	3.4	1.8	5.6	12.4	44.9	0.0	0.1	0.0	2.0	3.1	65.4	2,288	961	611	52	40	248	134	237	-243
Shawn Bradley	8.1	2000-01	DAL	82	24.4	7.1	7.4	0.5	0.4	2.8	1.1	2.7	5.5	49.0	0.0	0.1	16.7	1.7	2.2	78.7	2,001	579	608	38	36	228	88	256	+369
Mark Eaton	8.1	1985-86	UTA	80	31.9	8.5	8.4	1.3	0.4	4.6	2.0	3.5	7.4	47.0	0.0	0.0		1.5	2.5	60.4	2,551	676	675	101	33	369	157	282
Brook Lopez	7.9	2019-20	MIL	68	26.7	12.0	4.6	1.5	0.7	2.4	1.0	4.3	9.9	43.5	1.5	4.8	31.4	1.9	2.2	83.6	1,817	813	312	99	46	163	70	163	+526
Marcus Camby	7.9	1997-98	TOR	63	31.8	12.1	7.4	1.8	1.1	3.7	2.1	4.9	11.9	41.2	0.0	0.0	0.0	2.4	3.9	61.1	2,002	765	466	111	68	230	134	200	-366
Theo Ratliff	7.9	1997-98	TOT	82	29.8	9.9	6.7	0.7	0.6	3.1	1.4	3.7	7.3	51.3	0.0	0.0		2.4	3.4	70.1	2,447	809	547	57	50	258	116	292	-16
Tree Rollins	7.8	1982-83	ATL	80	30.9	7.8	9.3	0.9	0.6	4.3	1.2	3.3	6.4	51.0	0.0	0.0	0.0	1.2	1.7	72.6	2,472	620	743	75	49	343	95	294
Alonzo Mourning	7.8	1999-00	MIA	79	34.8	21.7	9.5	1.6	0.5	3.7	2.7	8.3	15.0	55.1	0.0	0.1	0.0	5.2	7.4	71.1	2,748	1,718	753	123	40	294	217	308	+270
Alonzo Mourning	7.7	1998-99	MIA	46	38.1	20.1	11.0	1.6	0.7	3.9	3.0	7.0	13.8	51.1	0.0	0.0	0.0	6.0	9.2	65.2	1,753	924	507	74	34	180	139	161	+340
Dikembe Mutombo	7.5	1994-95	DEN	82	37.8	11.5	12.5	1.4	0.5	3.9	2.3	4.3	7.7	55.6	0.0	0.0		3.0	4.6	65.4	3,100	946	1,029	113	40	321	192	284
Greg Ostertag	7.4	1998-99	UTA	48	27.9	5.7	7.3	0.5	0.3	2.7	0.9	2.1	4.3	47.6	0.0	0.0		1.6	2.5	62.0	1,340	273	348	23	12	131	45	140	+318
Jaren Jackson Jr.	7.4	2021-22	MEM	78	27.3	16.3	5.8	1.1	0.9	2.3	1.7	5.5	13.3	41.5	1.6	5.1	31.9	3.6	4.4	82.3	2,126	1,272	454	86	73	177	130	272	+361