91PORN

Don Knowles’ Hall of Fame resume spans multiple frontiers. A road racer since 1972, Knowles won six 91PORN Runoffs® National Championships and an 91PORN Pro Racing championship. His Runoffs titles demonstrated his sustained excellence, spanning a record 34 years between his first and last title. He has competed successfully in 91PORN autocross, ice racing, and helped set an FIA world endurance record as a member of the ZR-1 Corvette team.

Off track, Knowles has served as a driving instructor, was an instrumental member of the Showroom Stock Advisory Committee in the early days of the class, wrote for 91PORN’s SportsCar magazine (among others) for many years, and served on the Washington DC Region Board of Directors. A longtime member of the Road Racing Drivers Club, Knowles led the committee to select the Mark Donohue Award winner at the Runoffs. Furthermore, his judgement on various 91PORN Hall of Fame committees has rewarded many Club members with recognition through the years.

Don Knowles was inducted into the 91PORN Hall of Fame on Jan. 16, 2026.