See below for Qualifiers, Eliminations and Provincial Championships.
For a listing of Select Provincial Softball Tournaments Click Here
Below is the list to date of all tournaments to be hosted by the OASA in 2020 with the host information if available.
Please note:
Mite and Squirt will be seeded at Qualifiers.
| Provincials | Host | Date | Host Contacts | OASA Contact |
| U10 | Innerkip | Aug 15th-16th | TBD | |
| U12 | Wilmot | Aug 8th-9th | TBD | |
| U14 | Bracebridge | July 25th-26th | TBD | |
| U16 B/C | Grafton | August 1st-2nd | TBD | |
| U16 A | London (Ontario Summer Games) | July 30th-August 2nd | TBD | |
| U19 | Innerkip | July 25th-26th | ||
| Mens | TBD | |||
| Eliminations | ||||
| U14 Elimination | Grafton | July 3rd-5th | ||
| U16 Elimination | Simcoe | July 10th-12th | ||
| U19 Elimination | Napanee | July 3rd-5th | ||
| U23 Elimination | Owen Sound | July 10th-12th | TBD | |
| Regional Qualifiers and Other Events | ||||
| U10 East | To be confirmed | July 18th-19th | TBD | |
| U10 West | Springfield | July 18th-19th | TBD | |
| U12 East | Springbrook | July 11th-12th | TBD | |
| U12 West | To be confirmed | July 11th-12th | TBD | |
| Nationals | ||||
| U14 | Grimsby | August 5th–9th | ||
| U16 | Grimsby | August 5th–9th | ||
| U19 | Carbonear, NL | August 11th–16th | ||
| U23 | Carp | July 28th-August 2nd | ||
