Ontario
Please email any updates, corrections or errors to miamihoosier@nullmsn.com
| Rank | Grower | Weight | Year | Weigh-off | Hometown |
| Top Ten Average | 1770.55 | Pounds | Updated: | 11/12/2018 |
| Phil & Jane Hunt | 1959 | 2018 | Woodbridge Fair | Cameron |
| John Matesa | 1855 | 2018 | Port Elgin | Breslau |
| Ryan Hoelke | 1803 | 2016 | Woodbridge Fair | Eganville |
| Ryan Hoelke | 1800.5 | 2016 | PE County P Fest | Eganville |
| 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 |
| Chris Delaney | 1684.5 | 2012 | Port Elgin | Pickering |
| Jeff Warner | 1683.5 | 2015 | Port Elgin | Englehart |