| Race Title: | SCCA National Championship Runoffs |
| Series Long: | Formula F |
| Venue: | Road America |
| Location: | Town of Plymouth, Sheboygan County, at N7390 Highway 67, Elkhart Lake, Wisconsin, United States |
| Coordinates: | 43.7975°N -87.9939°W |
| First Race: | 1969 |
| Most Wins Driver: |  Dave Weitzenhof (4) Jonathan Kotyk (4) |
| Most Wins Manufacturer: | Swift Engineering (16) |
| Surface: | Asphalt |
| Length Km: | 6.515 |
| Turns: | 14 |
Formula F is one of the oldest classes competed at the SCCA National Championship Runoffs.
Formula Ford was first introduced at the Runoffs in 1969 at Daytona. The first edition featured 21 drivers with Skip Barber winning the race and scoring the fastest lap. Most cars in the field were imported British Formula Ford cars such as the Merlyn, Lotus and Royale. Barber also won the second edition in 1970. The following decades saw many racing drivers competed in various different racing chassis. Dave Weitzenhof is the most successful driver in the class winning four times, each at Road Atlanta.
The introduction of the Swift DB1 in 1983 started an era of dominance. The chassis type won the race ten times. The chassis type also won ten consecutive pole positions between 1983 and 1992.[1] In 2009 the Honda L engine was introduced alongside the Ford Kent engine and Ford Cortina engine. In 2012 the first Formula F Runoffs was won by a Honda engine.
| Year | Track | Winner | Car | Engine | |
|---|---|---|---|---|---|
| Formula Ford | |||||
| 1969 | Caldwell D9 | Ford Kent | |||
| 1970 | Ford Kent | ||||
| 1971 | Jim Harrell | Ford Kent | |||
| 1972 | Hawke DL2B | Ford Kent | |||
| 1973 | ADF | Ford Kent | |||
| 1974 | Lola T340 | Ford Kent | |||
| 1975 | Tom Wiechmann | ADF Mk.II | Ford Kent | ||
| 1976 | Crosslé 30F | Ford Kent | |||
| 1977 | Dave Weitzenhof | Zink Z10 | Ford Kent | ||
| 1978 | David Loring | Ford Kent | |||
| 1979 | Dave Weitzenhof | Zink Z10 | Ford Kent | ||
| 1980 | Bob Lobenberg | ADF Mk.II | Ford Kent | ||
| 1981 | Dave Weitzenhof | Citation-Zink Z16 | Ford Kent | ||
| 1982 | Bob Lobenberg | ADF Mk.II | Ford Kent | ||
| 1983 | Swift DB1 | Ford Kent | |||
| 1984 | Jackson Younge | Reynard 84F | Ford Kent | ||
| 1985 | Swift DB1 | Ford Kent | |||
| 1986 | Swift DB1 | Ford Kent | |||
| 1987 | Dave Weitzenhof | Citation Centurian | Ford Kent | ||
| 1988 | Swift DB1 | Ford Kent | |||
| 1989 | Richard Bahmer | Swift DB1 | Ford Kent | ||
| 1990 | Tony Kester | Reynard FF88-X | Ford Kent | ||
| 1991 | Richard Schroebel | Swift DB1 | Ford Kent | ||
| 1992 | C.T. Hancock | Swift DB1 | Ford Kent | ||
| 1993 | Van Diemen RF93 | Ford Kent | |||
| 1994 | John Fillipakis | Swift DB1 | Ford Kent | ||
| 1995 | Bruce May | Swift DB1 | Ford Kent | ||
| 1996 | Bruce May | Swift DB1 | Ford Kent | ||
| 1997 | John LaRue | Ford Kent | |||
| 1998 | Keith Nunes | Swift DB6 | Ford Kent | ||
| 1999 | Keith Nunes | Swift DB6 | Ford Kent | ||
| 2000 | Chris Winkler | Van Diemen RF99 | Ford Kent | ||
| 2001 | Van Diemen RF01 | Ford Kent | |||
| 2002 | Justin Pritchard | Piper DF5 | Ford Kent | ||
| 2003 | Justin Pritchard | Piper DF5 | Ford Kent | ||
| 2004 | Scott Rarick | Swift DB6 | Ford Kent | ||
| 2005 | John Robinson II | Swift DB6 | Ford Kent | ||
| 2006 | Thomas Schweitz | Piper | Ford Kent | ||
| 2007 | John Robinson II | Swift DB6 | Ford Kent | ||
| 2008 | Chris Keller | Swift DB6 | Ford Kent | ||
| Formula F | |||||
| 2009 | Scott Rubenzer | Citation 95FF | Ford Kent | ||
| 2010 | Tim Kautz | Piper DF3D | Ford Kent | ||
| 2011 | Lewis Cooper III | Van Diemen RF00 | Ford Kent | ||
| 2012 | Tim Kautz | Piper DF3D | Honda L15A7 | ||
| 2013 | Tim Kautz | Piper DF3D | Honda L15A7 | ||
| 2014 | Jeremy Grenier | Honda L15A7 | |||
| 2015 |  Rick Payne | Van Diemen RF99 | Honda L15A7 | ||
| 2016 | Mygale SJ11 | Honda L15A7 | |||
| 2017 |  Matthew Cowley | Mygale SJ11 | Honda L15A7 | ||
| 2018 | Jonathan Kotyk | Honda L15A7 | |||
| 2019 | Jonathan Kotyk | Honda L15A7 | |||
| 2020 | Mygale SJ12 | Honda L15A7 | |||
| 2021 | Jonathan Kotyk | Mygale SJ11 | Honda L15A7 | ||
| 2022 | Jonathan Kotyk | Honda L15A7 | |||
| 2023 | Van Diemen RF00 | Ford Kent | |||
| 2024 | Tazio Stefanelli | Honda L15A7 | |||