Ontario
Please email any updates, corrections or errors to miamihoosier@nullmsn.com
| Rank | Grower | Weight | Year | Weigh-off | Hometown |
| Phil & Jane Hunt | 1959 | 2018 | Woodbridge Fair | Cameron |
| John Matesa | 1855 | 2018 | Port Elgin | Breslau |
| Phil & Jane Hunt | 1814 | 2019 | Woodbridge Fair | Cameron |
| Ryan Hoelke | 1803 | 2016 | Woodbridge Fair | Eganville |
| Ryan Hoelke | 1800.5 | 2016 | PE County P Fest | Eganville |
| Phil & Jane Hunt | 1771.5 | 2019 | Port Elgin | Cameron |
| Ben Johnson | 1756 | 2018 | Thunder Bay | Kakabeka Falls |
| John Matesa | 1736 | 2018 | Erin Fall Fair | Breslau |
| Fred Hain | 1734 | 2018 | Port Elgin | London |
| Ryan Holke | 1694 | 2018 | Woodbridge Fair | Eganville |
| Top Ten Average | 1792.3 | Pounds | Updated: | 10/13/2019 |