August 23, 1960 | | Hartford Motor Speedway, Hartford, MI | USAC Midget | Bob Wente |
June 23, 1974 | Wolverine 100 | Hartford Motor Speedway, Hartford, MI | USAC Stock Car | Butch Hartman |
August 14, 1977 | | Hartford Motor Speedway, Hartford, MI | ASA Stock Car | Larry Detjens |
April 16, 1978 | Spring Spectacular | Hartford Motor Speedway, Hartford, MI | ASA Stock Car | Dick Trickle |
May 21, 1978 | Strawberry Blossom 100 | Hartford Motor Speedway, Hartford, MI | ASA Stock Car | Butch Miller |
July 12, 2006 | | Hartford Motor Speedway, Hartford, MI | NST National Sprint Tour | Steve Kinser |
July 10, 2009 | | Hartford Motor Speedway, Hartford, MI | All Star Circuit of Champions Sprint Car | Tim Shaffer |
September 21, 2011 | | Hartford Motor Speedway, Hartford, MI | World of Outlaws Sprint Car | Joey Saldana |
August 11, 2012 | Wolverine Nationals | Hartford Motor Speedway, Hartford, MI | USAC Sprint Car | Dave Darland |
July 24, 2015 | | Hartford Motor Speedway, Hartford, MI | All Star Circuit of Champions Sprint Car | Dale Blaney |
July 2, 2016 | | Hartford Motor Speedway, Hartford, MI | All Star Circuit of Champions Sprint Car | Sheldon Haudenschild |
July 29, 2016 | | Hartford Motor Speedway, Hartford, MI | World of Outlaws Sprint Car | Daryn Pittman |
September 21, 2016 | | Hartford Motor Speedway, Hartford, MI | World of Outlaws Sprint Car | Shane Stewart |
July 28, 2017 | | Hartford Motor Speedway, Hartford, MI | World of Outlaws Sprint Car | David Gravel |
July 12, 2019 | | Hartford Motor Speedway, Hartford, MI | World of Outlaws Sprint Car | David Gravel |