Laguna Seca0:58.874
Porsche 962
IMSA GTP · race · 1986
Al Holbert
Racing driver
Al Holbert is credited in published circuit-record results. The recorded vehicle, timing, date and source are listed below.
Track times
Verified results in VehicleRef
Pocono Raceway1:15.440
Porsche 962
IMSA GTP · race · 1985
Canadian Tire Motorsport Park1:19.080
March 83G
IMSA GTP · race · 1983
Lime Rock Park0:55.400
Chevrolet Monza
IMSA GT · race · 1976
Pocono Raceway1:34.000
Porsche 934
Trans-Am · race · 1976
Road Atlanta1:26.406
Porsche 911 Carrera RSR
Group 4 · race · 1975