Northern League Champions

Gridiron Football League (GFL) story initiated in 1968 and began with teams which cities that have not a "League" team, such as Oakland or Green Bay.
 * 1970: Houston Raptors
 * 1971: Green Bay Slayers
 * 1972: Green Bay Slayers
 * 1973: Indianapolis Twisters
 * 1974: Oakland Warriors
 * 1975 to 1977: Oakland Warriors
 * 1978: New Jersey Thrashers
 * 1979: Brooklyn Buffalos
 * 1980: Green Bay Slayers
 * 1981: New Orleans Troopers
 * 1982: Arizona Hunters
 * 1983: Portland Challengers
 * 1984: Fresno Grenadiers
 * 1985: Arizona Hunters
 * 1986: New Orleans Troopers
 * 1987: Oakland Warriors
 * 1988: New Jersey Thrashers
 * 1989: Houston Raptors
 * 1990: New Jersey Thrashers
 * 1991: Portland Challengers
 * 1992: Indianapolis Twisters
 * 1993 to 1995: Arizona Hunters
 * 1996: Sacramento Foxes
 * 1997: Georgia Smashers
 * 1998: Oakland Warriors
 * 1999: Houston Raptors
 * 2000: San Antonio Spiders
 * 2001: Oakland Warriors
 * 2002: San Antonio Spiders
 * 2003: Oakland Warriors
 * 2004 to 2006: Green Bay Slayers
 * 2007 to 2009: Oakland Warriors
 * 2010: Indianapolis Twisters
 * 2011: New Jersey Thrashers
 * 2012: No champion because the teams have been transfered to The League.