Top 12 DSR ChassisRanked by Number of National Championships |
| #1 | Wynnfurst - Lola | 7 National Championships | |
| #2 | LeGrand - Bease | 6 National Championships | |
| #3 | Decker | 5 National Championships | |
| #4 | Crossle | 4 National Championships | |
| #5 | Cheetah | 3 National Championships | |
| Stohr | |||
| #7 | Grady / Maru | 2 National Championships | |
| Ocelot | |||
| #9 | Kangaroo | 1 National Championship | |
| Arachnid | |||
| Bobsy | |||
| Quasar | |||
DSR National Champions |
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| Year | Driver | Chassis | Engine |
| 2004 | John Hill | Stohr (3) | Yamaha YZF R1 |
| 2003 | Mark Jaremko (2) | Stohr (2) | Yamaha YZF R1 |
| 2002 | Mark Jaremko | Stohr | Yamaha YZF R1 |
| 2001 | Marc Hoover | Cheetah SR1 (3) | Mazda GLC 1300cc |
| 2000 | Al Beasley Jr. | Bease-Decker (6) | Yamaha |
| 1999 | Bruce Sunseri | Cheetah SR1 (2) | Kawasaki ZX10/11 |
| 1998 | Travis Duder (5) | Cheetah SR1 | Nissan A/E series |
| 1997 | Michael Reupert (2) | Lola T-540 (7) | AMW |
| 1996 | David Kaiser | LeGrand Mk25 (6) | Suzuki GSXR-1100 |
| 1995 | David Kaiser | LeGrand Mk25 (5) | Suzuki GSXR-1100 |
| 1994 | David Kaiser | LeGrand Mk25 (4) | Suzuki GSXR-1100 |
| 1993 | Travis Duder (4) | Crossle (4) | Nissan A series |
| 1992 | Travis Duder (3) | Crossle (3) | Nissan A series |
| 1991 | Travis Duder (2) | Crossle (2) | Nissan A series |
| 1990 | Michael Reupert | Lola T-540 (6) | AMW? |
| 1989 | Travis Duder | Crossle | Nissan A series |
| 1988* | Al Beasley Sr. | Bease-Decker (5) | |
| 1987 | Paul Decker (4) | Decker Mk1/2 (4) | AMW |
| 1986 | Paul Decker (3) | Decker Mk1/2 (3) | AMW |
| 1985* | Paul Decker (2) | Decker Mk1/2 (2) | Ocelot(?) Suzuki |
| 1984 | Tom Jagemann | Lola (5) | |
| 1983 | Jeff Miller (4, 5 OA) | Wynnfurst - Lola (4) | Kohler(?) |
| 1982 | Paul Decker | Decker (or LeGrand?) | |
| 1981 | Jeff Miller (3, 4 OA) | Wynnfurst -Lola (3) | Kohler(?) |
| 1980 | Jerry Smith | LeGrand (3) | |
| 1979 | Dave Leeson (2) | LeGrand (2) | |
| 1978 | Dave Leeson | LeGrand | |
| 1977 | Jeff Miller (2) | Wynnfurst - Lola (2) | Kohler(?) |
| 1976 | Jeff Miller | Wynnfurst - Lola | Kohler(?) |
| 1975 | Kendall Noah | Ocelot (2) | Ocelot Suzuki |
| 1974 | Bob Marshall | Quasar | Ocelot(?) Suzuki |
| 1973 | Ronald Dennis | Ocelot | |
| 1972 | Harry Stephenson (2) | Maru (2) | |
| 1971 | Harry Stephenson | Maru | |
| 1970 | Marvin Thompson | Bobsy | |
| 1969 | Eric Kerman | Arachnid | |
| 1968 | Fred Plotkin | Kangaroo-Abarth | Abarth |
| prior | H Modified preceded as the class which led to DSR's development in 1968. | ||