Most seasons leading league
4-Kareem Abdul-Jabbar, Milwaukee, 1974-75; Los Angeles, 1975-76, 1978-79-1979-80
Mark Eaton, Utah, 1983-84-1984-85; 1986-87-1987-88

Most consecutive seasons leading league
3-Dikembe Mutombo, Denver, 1993-94-1995-96

Most blocked shots, career
3,459-Hakeem Olajuwon, Houston, 1984-85-1997-98

Highest average, blocked shots per game, career
(minimum 400 games)
3.67-Dikembe Mutombo, Denver, 1991-92-1995-96; Atlanta, 1997-98 (2,027/553)

Most blocked shots, season
456-Mark Eaton, Utah, 1984-85

Highest average, blocked shots per game, season (qualifiers)
5.56-Mark Eaton, Utah, 1984-85 (456/82)

Most blocked shots, rookie, season
397-Manute Bol, Washington, 1985-86

Highest average, blocked shots per game, rookie, season (qualifiers)
4.97-Manute Bol, Washington, 1985-86 (397/80)

Most blocked shots, game
17-Elmore Smith, Los Angeles vs. Portland, October 28, 1973

Most blocked shots, one half
11-Elmore Smith, Los Angeles vs. Portland, October 28, 1973
George Johnson, San Antonio vs. Golden State, Feb. 24, 1981
Manute Bol, Washington vs. Milwaukee, December 12, 1985

Most blocked shots, one quarter
8-Manute Bol, Washington vs. Milwaukee, December 12, 1985
Manute Bol, Washington vs. Indiana, February 26, 1987