| March 16, 2020 | Barrie District Girls Softball Assoc | OSSTA-588-20 | P O Box 28081, Wellington St Plaza | Barrie, On | L4N 7W1 | GIRLS | Fred Morgan | 705-500-1444 | bdgsa.select@gmail.com |
| March 16, 2020 | Brampton Girls Softball | OSSTA-587-20 | 8 mcarthur Heights | Brampton, On | L6z 3n3 | GIRLS | Manuel Silva | 416-573-2033 | silvaegs@yahoo.ca |
| March 1, 2020 | Brantford Diamondbacks | OSSTA-571-20 | PO Box 24008 | Brantford | N3R 7X3 | BOTH | Greg Rudge | 647-209-2555 | brantforddiamondbacks@gmail.com |
| January 28, 2020 | Cambridge Minor Softball | OSSTA-561-20 | PO Box 22048, RPO Water Street | Cambridge | N1R 8E3 | BOTH | Craig Hillis | 519-621-0151 | travel@cambridgeminorsoftball.ca |
| February 5, 2020 | Cornwall Minor Girls Softball | OSSTA-564-20 | 800 7th Street West, Box 11 | Cornwall | K6J 0A3 | GIRLS | Marc Besner | 613-551-2044 | m.besner29@gmail.com |
| January 29, 2020 | East Gwillimbury Minor Softball Association | OSSTA-562-20 | 105 Metcalfe Drive | Bradford | L3Z 3C6 | BOTH | Margaret Haddon | 289-383-4489 | egselectfastball@gmail.com |
| March 1, 2020 | Erindale Little League | OSSTA-570-20 | P O Box 43005 Mavis Rd | Mississauga | L5B 4A7 | GIRLS | Paul Carriere | 416-566-2505 | softballvp@erindalellbaseball.ca |
| March 1, 2020 | Etobicoke Girls Softball League | OSSTA-569-20 | 37 Rossburn Drive | Etobicoke | M9C 2P9 | GIRLS | Stephen Poirier | 416-420-3321 | etobicokegirlssoftball@gmail.com |
| March 3, 2020 | Forest Glade Baseball League | OSSTA-573-20 | 7720 Tecumseh Rd. E., Box 27105 | Windsor | N8T 3N5 | GIRLS | Rob Adlam | 226-787-7623 | r_adlam@hotmail.com |
| March 8, 2020 | Frontenac county minor softball association | OSSTA-578-20 | 1030 Hambly Lane | Hartington ontario | K0H 1W0 | BOTH | Hughie VanKoughnett | 613-561-6121 | houston1717@yahoo.ca |
| March 16, 2020 | LaSalle Turtle Club | OSSTA-585-20 | 820 Superior St. | Lasalle | N9J 3E6 | GIRLS | James Aaron Anson | 248-939-0508 | aaronanson@yahoo.ca |
| May 4, 2020 | Markham District Softball Association | OSSTA-595-20 | 141 Golden Meadow Drive | Markham | L6E 1G9 | GIRLS | Cory Standing | 416-574-5856 | info@markhamdistrictsoftball.ca |
| March 1, 2020 | Mississauga Majors | OSSTA-568-20 | 2153 Pashak Court | Mississauga | L5A 1H8 | GIRLS | Mark Newman | 416-902-6396 | majorssoftball@rogers.com |
| January 23, 2020 | Niagara Girls Minor Softball Association | OSSTA-560-20 | P.O. Box 22030, Riall Heights Plaza | Niagara falls , ON | L2J 4J3 | GIRLS | Tina Marchese | 905-374-8493 | niagarafallsthundercats@live.com |
| March 25, 2020 | North Bay Minor girls softball | OSSTA-594-20 | 36 ridgemount rd | corbeil | p0h 1k0 | GIRLS | richard Michauville | 705-752-5272 | michauville34@hotmail.com |
| March 2, 2020 | Oakville, Girls Softball Association | OSSTA-572-20 | 2197 Grenville Dr. | Oakville, Ontario | L6H 4X1 | GIRLS | Marc Lemieux | 905-334-5043 | marclemieux20@gmail.com |
| March 10, 2020 | Richmond Hill Minor Softball Association | OSSTA-583-20 | P.O. Box 2255, Station B | Richmond Hill | L4E 1A4 | GIRLS | Monica Cheung | 647-896-8292 | dir.select@rhmsa.ca |
| January 30, 2020 | Stittsville Minor Softball Association | OSSTA-563-20 | 1250 Stittsville Main Street, P.O. Box 85014 | Stittsville | k2s 1x9 | BOTH | Allan Read | 613-435-3199 | aread@solowaywright.com |
| March 11, 2020 | SW London Baseball Assoc. | OSSTA-584-20 | PO Box 29015 | London | N6K 4L9 | GIRLS | Mat Crossen | 519-902-2117 | londonscorpionsfastball@gmail.com |
| March 9, 2020 | Unionville Minor Softball Assoc | OSSTA-581-20 | 4261-A14 Hwy #7, Suite 102 | Unionville, On | L3R 9W6 | BOTH | Pam Branoff | 905-604-0190 | umsa@bell.net |
| February 28, 2020 | Vaughan Vikings | OSSTA-567-20 | Maple Community Centre, 10190 Keele Street | Vaughan | L6A 1R7 | GIRLS | Scott Wildman | 905-417-3302 | swildman@sympatico.ca |
| February 14, 2020 | Whitchurch-Stouffville Softball Association (WSSA) | OSSTA-565-20 | P.O. Box 1332 | Stouffville | L4A 8A3 | BOTH | Rosanna Garganis | 647-274-7650 | Ask@wssa.ca |
