Date Overall Winner(s) Entrant Car Distance/Duration Race Title Report SCCA National Sports Car Championship 1955 Phil Hill George E. TilpFerrari 750 Monza 150 miles (240 km) Elkhart Lake's Road America Road Race report 1956 John Kilborn Howard Hively John KilbornFerrari 375 MM 6 hours Road America 6 Hours report 1957 Phil Hill Gene GreenspunFerrari 315 S 500 miles (800 km) Road America 500 report 1958 Gaston Andrey Lance Reventlow North American Racing Team Ferrari 335 S 500 miles (800 km) Road America 500 report 1959 Ed Crawford Walt Hansgen Briggs Cunningham Lister - Jaguar 500 miles (800 km) Road America 500 report 1960 Dave Causey Luke Stear Dave CauseyMaserati Tipo 61 500 miles (800 km) Road America 500 report 1961 Walt Hansgen Augie Pabst Briggs Cunningham Maserati Tipo 63 500 miles (800 km) Road America 500 report 1962 Jim Hall Hap Sharp Jim Hall Chaparral 1 -Chevrolet 500 miles (800 km) Road America 500 report United States Road Racing Championship 1963 Augie Pabst Bill Wuesthoff Porsche Car Import/Oliver SchmidtElva Mk.7-Porsche 500 miles (800 km) Road America 500 report 1964 Walt Hansgen Augie Pabst John Mecom Jr. Ferrari 250 LM 500 miles (800 km) Road America 500 report 1965 Jim Hall Hap Sharp Ronnie Hissom Jim Hall Chaparral 2A -Chevrolet 500 miles (800 km) Road America 500 report 1966 Chuck Parsons Randy HiltonMcLaren Elva Mk.II-Chevrolet 500 miles (800 km) Road America 500 report 1967 Chuck Parsons Skip Scott Carl Haas McLaren Elva Mk.III-Chevrolet 500 miles (800 km) Road America 500 report 1968 Chuck Parsons Skip Scott Carl Haas Lola T70 Mk.3 -Chevrolet 500 miles (800 km) Road America 500 report 1969-1978: Not held IMSA GT Championship 1979 David Hobbs Derek Bell McLaren North America BMW 320i Turbo 500 miles (800 km) Pabst 500report 1980 John Paul Jr. John Paul, Sr. JLP RacingPorsche 935 JLP-2 500 miles (800 km) Pabst 500report 1981 Rolf Stommelen Harald Grohs Andial Meister RacingPorsche 935 K3 500 miles (800 km) Pabst 500report 1982 John Fitzpatrick David Hobbs John Fitzpatrick Racing Porsche 935 K4 500 miles (800 km) Pabst 500report 1983 Klaus Ludwig Tim Coconis Zakspeed Ford Mustang GTP 500 miles (800 km) Pabst 500report 1984 Al Holbert Derek Bell Holbert Racing Porsche 962 500 miles (800 km) Budweiser 500report 1985 Drake Olson Bobby Rahal Dyson Racing Porsche 962 500 miles (800 km) Löwenbräu Classicreport 1986 Al Holbert Al Unser Jr. Holbert Racing Porsche 962 500 miles (800 km) Löwenbräu Classicreport 1987 Price Cobb Johnny Dumfries Dyson Racing Porsche 962 500 miles (800 km) Löwenbräu Classicreport 1988 Geoff Brabham John Morton Electramotive EngineeringNissan GTP ZX-T 500 km (310 mi) Miller High Life 500report 1989 Geoff Brabham Chip Robinson Electramotive EngineeringNissan GTP ZX-T 500 km (310 mi) Miller High Life 500report 1990 Geoff Brabham Nissan PerformanceNissan NPT-90 250 km (160 mi)A Chicago Tribune presents the Nissan Grand Prix of Road Americareport 1991 Davy Jones Bud Light /Jaguar Racing Jaguar XJR-16 300 km (190 mi)B Nissan Grand Prix of Road Americareport 1992 Juan-Manuel Fangio II All American Racers Eagle Mk III Toyota 2 hours Nissan Grand Prix of Road Americareport 1993 John Winter Manuel Reuter Joest Porsche Racing Porsche 962C 500 km (310 mi) Piggly Wiggly Grand Prix 500 Kilometersreport 1994-1999 Not held Grand American Road Racing Championship 2000 Didier Theys Freddy Lienhard Mauro Baldi Doran Lista RacingFerrari 333 SP -Judd 500 miles (800 km) Sargento Road America 500report 2001 Didier Theys Freddy Lienhard Mauro Baldi Lista Doran RacingFerrari 333 SP -Judd 500 miles (800 km) Sargento Road America 500report American Le Mans Series 2002 Tom Kristensen Rinaldo Capello Audi Sport North America Audi R8 4 hours, 15 minutes Road America 500 presented by the Chicago Tribune report 2003 Johnny Herbert JJ Lehto ADT Champion Racing Audi R8 2 hours, 45 minutes Road America 500 presented by the Chicago Tribune report 2004 JJ Lehto Marco Werner ADT Champion Racing Audi R8 2 hours, 45 minutes Road America 500 presented by the Chicago Tribune report 2005 Frank Biela Emanuele Pirro ADT Champion Racing Audi R8 2 hours, 45 minutes Generac 500report 2006 Frank Biela Emanuele Pirro Audi Sport North America Audi R10 TDI 2 hours, 45 minutes Generac 500report 2007 Romain Dumas Timo Bernhard Penske Racing Porsche RS Spyder 4 hours Generac 500report 2008 Lucas Luhr Marco Werner Audi Sport North America Audi R10 TDI 4 hours Generac 500report 2009 Scott Sharp David Brabham Patrón Highcroft Racing Acura ARX-02a 2 hours, 45 minutes Time Warner Cable Road Race Showcasereport 2010 Paul Drayson Jonny Cocker Drayson Racing Lola B09/60 2 hours, 45 minutes American Le Mans Series powered by eStar report 2011 Klaus Graf Lucas Luhr Muscle Milk Aston Martin RacingLola-Aston Martin B08/62 4 hours Time Warner Cable Road Race Showcasereport 2012 Chris Dyson Guy Smith Dyson Racing Lola B12/60 Mazda MZR-R 4 hours Road America Road Race Showcase report [1] 2013 Klaus Graf Lucas Luhr Muscle Milk Pickett Racing HPD ARX-03c Honda 2 hours, 45 minutes Orion Energy Systems 245 report [2] United SportsCar Championship 2014 João Barbosa Christian Fittipaldi Action Express Racing Coyote Corvette DP Chevrolet 2 hours, 45 minutes Continental Tire Road Race Showcasereport [3] 2015 Dane Cameron Eric Curran Action Express Racing Coyote Corvette DP Chevrolet 2 hours, 40 minutes Continental Tire Road Race Showcasereport 2016 Dane Cameron Eric Curran Action Express Racing Coyote Corvette DP Chevrolet 2 hours, 40 minutes Continental Tire Road Race Showcasereport 2017 Pipo Derani Johannes van Overbeek Tequila Patrón ESM Nissan Onroak DPi 2 hours, 40 minutes Continental Tire Road Race Showcasereport 2018 Jon Bennett Colin Braun CORE Autosport Oreca 07 2 hours, 40 minutes Continental Tire Road Race Showcasereport [4] 2019 Jonathan Bomarito Harry Tincknell Joest Racing Mazda RT24-P 2 hours, 40 minutes Road Race Showcase at Road America Report 2020 Hélio Castroneves Ricky Taylor Team Penske Acura ARX-05 2 hours, 40 minutes IMSA SportsCar Weekend Report 2021 Pipo Derani Felipe Nasr Action Express Racing Cadillac DPi-V.R 2 hours, 40 minutes IMSA SportsCar Weekend Report 2022 Filipe Albuquerque Ricky Taylor
WTR - Konica Minolta Acura Acura ARX-05 2 hours, 40 minutes IMSA Fastlane SportsCar Weekend report