Ontario
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| Rank | Grower | Weight | Year | Weigh-off | Hometown |
| Phil & Jane Hunt | 1959 | 2018 | Woodbridge Fair | Cameron |
| Phil & Jane Hunt | 1939.5 | 2020 | Port Elgin Pumpkinfest | Cameron |
| John Matesa | 1897 | 2020 | Port Elgin Pumpkinfest | Breslau |
| Dave McQuay | 1888.5 | 2022 | Port Elgin Pumpkinfest | Delhi |
| John Matesa | 1855 | 2018 | Port Elgin | Breslau |
| Phil & Jane Hunt | 1814 | 2019 | Woodbridge Fair | Cameron |
| Bob & Elaine MacKenzie | 1812.5 | 2020 | Port Elgin Pumpkinfest | Tiverton |
| Jeff Warner | 1805.5 | 2022 | Port Elgin | Englehart |
| Ryan Hoelke | 1803 | 2016 | Woodbridge Fair | Eganville |
| Ryan Hoelke | 1800.5 | 2016 | PE County P Fest | Eganville |
| Top Ten Average | 1857.45 | Pounds | Updated: | 10/22/2023 |