D Sports Racing

Mark Jaremko, 4 time DSR National Champion in his Stohr WF1

D Sports Racing now known as Prototype 2 is a sports prototype racecar class for road racing by the Sports Car Club of America. It has been called the one racing category that remains unfettered by regulations that have throttled innovation elsewhere in motorsport. Usually known simply as DSR, the class began in 1968. DSR evolved from the SCCA's older H Modified class, which traces its roots back to the early 1950s. Today's DSR cars normally use a 1000cc four cylinder engine sourced from a Japanese motorcycle. Several other engines are allowed. DSR's generally weigh under 1000 lbs with the driver and make 200 bhp at 13,000rpm. The relatively low cost of the engines and some new chassis manufacturers led to an explosion in growth of the class between the years 2000 and 2008. DSR's were the fastest class at the SCCA National Championship races in 2008.

Manufacturers

File:2018 SCCA National Champion. Driver- Tim Day, Jr. in a 2006 Stohr WF1 Prototype 2 race car, powered by a Suzuki Hayabusa motor.jpg

Tim Day Jr. in a Suzuki Hayabusa powered Stohr WF1 at the SCCA Runoffs in Protoype 2.

• A-Mac
• Cheetah
• Diasio
• Dragon
• Galmer
• LSR Prince
• Radical
• Speads
• Stohr Cars
• West Race Cars

SCCA National Championship Runoffs

Year	Winner	Car	Engine
1966	Ed Luke	Lotus	Chevrolet
1967	Wayne Koch	Koch
1968	Fred Plotkin	Abarth Special
1969	Eric Kerman	Arachnid	Honda
1970	Marvin Thomson	Bobsy-Imp
1971	Harry Stephenson	Maru	Honda
1972	Harry Stephenson	Maru	Honda
1973	Ronald Dennis	Ocelot	Suzuki
1974	Bob Marshall	Quasar	Suzuki
1975	Kendall Noah	Ocelot Mk.A	Suzuki
1976	Jeff Miller	Wynnfurst	Kohler
1977	Jeff Miller	Wynnfurst	Kohler
1978	Dave Leeson	LeGrand Mk.18	Kohler
1979	Dave Leeson	LeGrand Mk.18	Kohler
1980	Jerry Smith	LeGrand Mk.25	Kohler
1981	Jeff Miller	Lola T540	Kohler
1982	Paul Decker	LeGrand Mk.18	Suzuki
1983	Jeff Miller	Wynnfurst	Kohler
1984	Thomas Jagemann	Lola	Kohler
1985	Paul Decker	Decker Mk.1/2
1986	Paul Decker	Decker Mk.1
1987	Paul Decker	Decker Mk.1
1988	Al Beasley Sr.	Bease-Decker Mk.II
1989	Travis Duder	McCann
1990	Michael Reupert	Lola
1991	Travis Duder	Crossle	Nissan
1992	Travis Duder	Crossle	Nissan
1993	Travis Duder	Crossle	Nissan
1994	David Kaiser	LeGrand Mk.25D
1995	David Kaiser	LeGrand Mk.25D
1996	David Kaiser	LeGrand Mk.25D
1997	Michael Reupert	Lola
1998	Travis Duder	Cheetah SR-1
1999	Bruce Sunseri	Cheetah SR-1
2000	Al Beasley Jr.	BeaseDecker Mk.1
2001	Marc Hoover	Cheetah	Mazda
2002	Mark Jaremko	Stohr 03D
2003	Mark Jaremko	Stohr 03D
2004	John Hill	Stohr
2005	Mark Jaremko	Stohr WF1
2006	Mark Jaremko	Stohr WF1
2007	J.R. Osborne	Stohr WF1
2008	J.R. Osborne	Stohr WF1
2009	Garry Crook	Stohr WF1	Suzuki
2010	Lawrence Loshak	Stohr WF1	Suzuki
2011	Tom Bootz	Stohr WF1	Suzuki
2012	Scott Tucker	West WX10	Suzuki
2013	Chris Farrell	Stohr WF1	Suzuki
Prototype 2
2014	Fabian Okonski	Stohr 01D	Suzuki
2015	Chris Farrell	Stohr WF1	Suzuki
2016	Jeff Shafer	Stohr WF1	Suzuki
2017	Jeff Shafer	Stohr WF1	Suzuki
2018	Tim Day Jr.	Stohr WF1	Suzuki
2019	Tray Ayres	Van Diemen RF00	Mazda
2020	Greg Gyann	Stohr WF1	Suzuki
2021	Tim Day Jr.	Stohr WF1	Suzuki
2022	Greg Gyann	Stohr WF1	Suzuki
2023	Lucian Pancea	Stohr WF1	Suzuki

External links

• Sports Car Club of America
• Sports Racer Network