| Race Title: | IMSA SportsCar Weekend |
| Series Long: | IMSA WeatherTech SportsCar Championship |
| Series Short: | IMSA |
| Venue: | Road America |
| First Race: | 1950 |
| First Series Race: | 2014 |
| Duration: | 2 hours 40 minutes |
| Previous Names: | Elkhart Lake Road Race Road America 500 Grand Prix of Road America Continental Road Race Showcase |
| Most Wins Driver: | Augie Pabst (3) Chuck Parsons (3) Geoff Brabham (3) Lucas Luhr (3) |
| Most Wins Team: | Briggs Cunningham Racing Team (4) Penske Racing (4) |
| Most Wins Manufacturer: | Porsche (11) |
The IMSA SportsCar Weekend (formerly the Continental Tire Road Race Showcase at Road America, Road America 500) is a sports car race held at Road America in Elkhart Lake, Wisconsin. The event began in 1950, in 1951 was added to the SCCA National Sports Car Championship and was contested for the final time on the roads around the village and lake of Elkhart Lake, Wisconsin. Following a spectator death at the 1952 Watkins Glen Grand Prix, racing on open roads was discouraged, and the race went into hiatus until 1955, when Road America was opened. In 1963, the race shifted to the new United States Road Racing Championship, until the USRRC's demise in 1968. After an 11-year hiatus, the IMSA GT Championship revived the event in 1979. After running as a 500 mile event beginning in 1957, IMSA shortened the race to 500km (300miles) in 1988, and again in 1991 to 300km (200miles). The race was shortened to 2 hours in 1992. After a return to a 500-km distance, the race was cancelled in 1994. It was revived once again in 2000, by the Grand American Road Racing Championship, to a 500-mile distance. The race was an American Le Mans Series event from 2002 until 2013, run at varying race distances of either 2 hours and 45 minutes or 4 hours. In 2014 the race joined the schedule of the WeatherTech SportsCar Championship after the merger of the American Le Mans Series and the Rolex Sports Car Series contested at IMSA's standard sprint race duration of 2 hours and 40 minutes. Porsche has won the event eleven times, most recently in 2024. Augie Pabst, Chuck Parsons, Geoff Brabham and Lucas Luhr have the most victories as drivers with three each.
| Date | Overall Winner(s) | Entrant | Car | Distance/Duration | Race Title | Report | |
|---|---|---|---|---|---|---|---|
| Non-championship | |||||||
| 1950 | 100miles | Elkhart Lake Road Race | report | ||||
| SCCA National Sports Car Championship | |||||||
| 1951 | 200miles | Elkhart Lake Road Race | report | ||||
| 1952 | 200miles | Elkhart Lake Cup | report | ||||
| Date | Overall Winner(s) | Entrant | Car | Distance/Duration | Race Title | Report | |
|---|---|---|---|---|---|---|---|
| SCCA National Sports Car Championship | |||||||
| 1955 | 150miles | Elkhart Lake's Road America Road Race | report | ||||
| 1956 | 6 hours | Road America 6 Hours | report | ||||
| 1957 | 500miles | Road America 500 | report | ||||
| 1958 | 500miles | Road America 500 | report | ||||
| 1959 | 500miles | Road America 500 | report | ||||
| 1960 | 500miles | Road America 500 | report | ||||
| 1961 | 500miles | Road America 500 | report | ||||
| 1962 | 500miles | Road America 500 | report | ||||
| United States Road Racing Championship | |||||||
| 1963 | 500miles | Road America 500 | report | ||||
| 1964 | 500miles | Road America 500 | report | ||||
| 1965 | 500miles | Road America 500 | report | ||||
| 1966 | 500miles | Road America 500 | report | ||||
| 1967 | 500miles | Road America 500 | report | ||||
| 1968 | 500miles | Road America 500 | report | ||||
| 1969-1978: Not held | |||||||
| IMSA GT Championship | |||||||
| 1979 | 500miles | Pabst 500 | report | ||||
| 1980 | 500miles | Pabst 500 | report | ||||
| 1981 | 500miles | Pabst 500 | report | ||||
| 1982 | 500miles | Pabst 500 | report | ||||
| 1983 | 460miles | Pabst 500 | report | ||||
| 1984 | 500miles | Budweiser 500 | report | ||||
| 1985 | 500miles | Löwenbräu Classic | report | ||||
| 1986 | 500miles | Löwenbräu Classic | report | ||||
| 1987 | 500miles | Löwenbräu Classic | report | ||||
| 1988 | 500km (300miles) | Miller High Life 500 | report | ||||
| 1989 | 500km (300miles) | Miller High Life 500 | report | ||||
| 1990 | 250km (160miles) | Chicago Tribune presents the Nissan Grand Prix of Road America | report | ||||
| 1991 | 300km (200miles) | Nissan Grand Prix of Road America | report | ||||
| 1992 | 2 hours | Nissan Grand Prix of Road America | report | ||||
| 1993 | 500km (300miles) | Piggly Wiggly Grand Prix 500 Kilometers | report | ||||
| 1994-1999 Not held | |||||||
| Grand American Road Racing Championship | |||||||
| 2000 | 500miles | Sargento Road America 500 | report | ||||
| 2001 | 500miles | Sargento Road America 500 | report | ||||
| American Le Mans Series | |||||||
| 2002 | 4 hours, 15 minutes | report | |||||
| 2003 | 2 hours, 45 minutes | report | |||||
| 2004 | 2 hours, 45 minutes | report | |||||
| 2005 | 2 hours, 45 minutes | Generac 500 | report | ||||
| 2006 | 2 hours, 45 minutes | Generac 500 | report | ||||
| 2007 | 4 hours | Generac 500 | report | ||||
| 2008 | 4 hours | Generac 500 | report | ||||
| 2009 | 2 hours, 45 minutes | Time Warner Cable Road Race Showcase | report | ||||
| 2010 | 2 hours, 45 minutes | American Le Mans Series powered by eStar | report | ||||
| 2011 |  Muscle Milk Aston Martin Racing | 4 hours | Time Warner Cable Road Race Showcase | report | |||
| 2012 | Chris Dyson Guy Smith | 4 hours | Road America Road Race Showcase | report [1] | |||
| 2013 | 2 hours, 45 minutes | Orion Energy Systems 245 | report [2] | ||||
| IMSA SportsCar Championship | |||||||
| 2014 | 2 hours, 45 minutes | Continental Tire Road Race Showcase | report [3] | ||||
| 2015 | 2 hours, 40 minutes | Continental Tire Road Race Showcase | report | ||||
| 2016 | 2 hours, 40 minutes | Continental Tire Road Race Showcase | report | ||||
| 2017 | 2 hours, 40 minutes | Continental Tire Road Race Showcase | report | ||||
| 2018 | 2 hours, 40 minutes | Continental Tire Road Race Showcase | report[4] | ||||
| 2019 | Jonathan Bomarito Harry Tincknell | Mazda RT24-P | 2 hours, 40 minutes | Road Race Showcase at Road America | Report | ||
| 2020 |  Hélio Castroneves Ricky Taylor | 2 hours, 40 minutes | IMSA SportsCar Weekend | ||||
| 2021 | Pipo Derani Felipe Nasr | 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 | |
| 2023 |  Matt Campbell Felipe Nasr | Porsche Penske Motorsport | Porsche 963 | 2 hours, 40 minutes | IMSA SportsCar Weekend | report | |
| 2024 | Nick Tandy Mathieu Jaminet | Porsche Penske Motorsport | Porsche 963 | 2 hours, 40 minutes | IMSA SportsCar Weekend | report | |