| Team name | Lineup |
|---|---|
| Team Stroud | Skip: Spencer Johnson Third: Evan Desrochers Second: Liam Rego Lead: Logan Blackwell Alternate: Bradley King |
| Team Wilson | Skip: Jillian Wilson Third: Emma Danis Second: Charlotte Rumas Lead: Anna Corkery |
| Court | Skip: Natalie Court Third: Tillie McLaughlin Second: Riley Bridge Lead: Chuck Newton |
| Team Kostiak | Skip: Annie Kostiak Third: Olivia Medeiros Second: Elizabeth Slomer Lead: Charlotte Slomer |
| Team Devine | Skip: Devine Third: Max Tibbon Second: Quinn Drennan Lead: Nathan Grimstead |
| Thornhill | Skip: Brandon Chan Third: Brooklyn Chan Second: Sarah Chou Lead: TBD Alternate: TBD |
| Cobra Curl U12 Boys | Skip: Eli Matchett Third: Lucas Todd Second: Duncan Larmer Lead: Maverick Chambers |
| Reid | Skip: Laura Reid Third: Jenny Chen Second: Abby Gale Lead: Iris Reid |
| Team Port Carling | Skip: River Cashens Third: Oliver Vanek Second: Bhodi Cashens Lead: Andrew Fraser |
| The Goofy Goobers | Skip: Adam Warner Third: Rory Baker Second: Aiden Sherwood Lead: Zach Rusnov |
| Royal City Pebbles | Skip: Oliver Buchanan Third: Finn Buchanan Second: Spencer Godon Lead: Dexter Boyd |
| Moffatt | Skip: Sadie Moffatt Third: Abby Csima Second: Matthew Bui Lead: Cathy Zhang |
| Curling Comets | Skip: Rui Barbosa Third: Jackson Costanzo Second: Dylan Rethoret Lead: Weston Hargreaves Alternate: Ben Rusciolelli |
| Team Proulx | Skip: Finley Proulx Third: Marsali Proulx Second: Maeve Stephens Lead: Jaxton Bouwhuis |
| KW Granite | Skip: Zoey Hamilton Third: Marko Krstic Second: Janna Hamilton Lead: Ari Chand |
| Cookstown | Skip: Claire Kell Third: Gavin Axon Second: Colton Ropson Lead: Ally Van Hemert Alternate: Nathan Lee |
| Allenford Sheet Kickers | Skip: Brett Fisher Third: Natalie Davidson Second: Carter Kamrath Lead: Amelia Dickinson |
| Paglia RHCC | Skip: Sophie Paglia Third: Elinor Abramov Second: Hilda Fong Lead: Justin Cox |
| Team Clark - Dixie | Skip: James Clark Third: Cassia Boulos Second: Owen Lickers Lead: Scarlett Isono Alternate: Victoria Clark |
| Matthews | Skip: Maddison Matthews Third: Jennifer Askins Second: Quinn Buchner Lead: Brynne MacCorkindale |
| Palmerston Hogline Violations | Skip: Nolan Laird Third: Isaac Dobson Second: Jack Rowden Lead: Duncan Wilson |
| Palmerston Pandas | Skip: Jonathan Schnieder Third: Jayden Dann Second: Colin Vandermeulen Lead: Jaxon Dagg Alternate: Beau Fotheringham |
| Palmerston Rocks & Rings | Skip: Clara Schneider Third: Wyatt Flewelling Second: Carter Dobson Lead: Montgomery Cox Alternate: Kensington Cox |
| Chesley Curling Club | Skip: Ewan Elder Third: Riley Brown Second: Tyson Fook Lead: William Frenette |
| Ender Sweepers | Skip: Jack Wood Third: Alex Jakym Second: James Park Lead: Brendan Myles |
| Ilderton Curling | Skip: Charlie Yost Third: Elpida Ayres Second: Cara Dame Lead: Jocelyn Smith |
| KW Granite 2 | Skip: Andrew Thompson Third: Olivia Vaduva Second: Brynn Illingworth Lead: Taeyah Israel |
| Team Folino | Skip: Hayley Folino Third: Johanna Holm Second: Ellia Lambert Lead: Annabel Lichter-Caruso Alternate: TBD |
| Team Has Withdrawn | Skip: Team Has Withdrawn Third: Team Has Withdrawn Second: Team Has Withdrawn Lead: Team Has Withdrawn Alternate: Team Has Withdrawn |
| Halton Hammers | Skip: Jack Grant Third: Jack Fennell Second: Saanvi Gadde Lead: Isabella Bartens |
| Pizza Da GOAT | Skip: Alexander Nocent Third: Ella Streef Second: Bryce Haugh Lead: Natalya Romero |
| Galt Curling Anderson | Skip: Owen Anderson Third: Ethan Parsons Second: Kayla Armitage Lead: Ava Parsons Alternate: Kayden Armitage |
| Galt Curling Karr | Skip: Everett Karr Third: Kati Armitage Second: Olivia MacDonald Lead: Nora Mondor |
| EYCC Polar Bears | Skip: Nora Champion Third: Alice Glenen Second: William Agard Lead: Holly Glenen |
| Galt Curling Good-Godard | Skip: Hunter Good-Godard Third: Bruce Kunihiro Second: Max Mondor Lead: Abigail Fowler |
| Sweepin' Guelphers | Skip: Nyjah Third: Kaylyn Second: Zoe Lead: Leonie |
| BIG HIT | Skip: Fraser Herd Third: Javi Lopez Second: Marleigh Herd Lead: TBD |
| Listowel Curling Club | Skip: Blakely Veitch Third: Eirlys Fairfull Second: Nova Jobagy Lead: Barrett Berfelz |
| Belmore Juniors | Skip: Cole Underwood Third: Bryce McKee Second: Colton DeVries Lead: Kylie Hammell |
| Vanastra “Van Den Berg” | Skip: Noah Van Den Berg Third: Lleyton VanDyke Second: Sully McFarlan Lead: Gracia VanDyke |
| Vanastra Glen | Skip: Lili Glen Third: Mathis Glen Second: Frances Coates Lead: Hannah Van Loo |
| Curl Power | Skip: Luna Hadaller Third: Sadie Rethoret Second: Johanna Whittaker Lead: Seren Hadaller Alternate: TBD |
| Uxbridge CC | Skip: Ryder Gram-Timms Third: Hailey Jackson Second: Hannah Bowles Lead: Wyatt Gram-Timms |
| Welland Curling Club | Skip: Evan Mabee Third: Jocelyn Brooks Second: Morgan Stortz Lead: Allison Janzen Alternate: TBD |
| Rock Your Socks Off | Skip: Nicole Pletch Third: Cooper Kirk Second: Morgan Swanton Lead: Alice Davidson |
| Graham | Skip: Chelsea Graham Third: Leslie Graham Second: Alice Blakely Lead: Amelia Keleher |
| Ayr Curling | Skip: Kian Landon Third: Jeremy Poirier Second: Dyton Williams Lead: Julia Johnston |