 Oswego Speedway supermodified class track champions have included multi-time champs Nolan Swift (eight times, 1953–71),Otto Sitterly (eight times, 2006-2014,2018),Bentley Warren (seven times, 1983–93), Jim Shampine (seven times, 1967–79), Greg Furlong (four times, 2000–07), Eddie Bellinger, Sr. (three times, 1957–60), Doug Didero (three times, 1994–96) and Mike Muldoon (three times, 1997-1999).Other classes running regularly at Oswego Speedway during the season that extends from April through September include the Oswego Speedway Small Block Supermodifieds, 350 Winged Supermodifieds, DART Asphalt Modified Tour cars, Buckeye Super (winged asphalt) Sprint Cars.The track also hosts the International Supermodified Association (ISMA) and Midwest Supermodified Association (MSA) supermodifieds (both having air-strut adjustable top wings).