2015 Ontario Underclass Games (Invite Only)
| Name | State | School | Class | Pos | Commitment |
| Aidan Ali | ON | Father Leo J. Austin High School | 2017 | OF | |
| Aaron Arbon | ON | Collingwood Collegiate | 2017 | OF | |
| Josh Arce | ON | RS McLaughlin CVI | 2017 | C | Durham College |
| Ryan Ashurst | ON | Frontenac Secondary School | 2018 | SS | |
| Braden Babcock | ON | Maxwell Heights | 2018 | LHP | McCook CC |
| Braeden Barnett | ON | Innisdale | 2018 | 3B | Frontier Community College |
| Braedon Beckett | ON | Port Hope High School | 2017 | OF | |
| Vincent Bonhomme | ON | Lasalle Secondary | 2017 | RHP | Fanshawe College |
| Shane Brimacombe | ON | St. Peter's | 2017 | 1B | |
| Jeremy Browne | ON | Greenwood College | 2017 | 1B | |
| Kyle Bryan | ON | Sinclair | 2017 | C | Northwestern Ohio |
| Jonathan Burkhart | ON | Huron Heights Secondary School | 2017 | RHP | Heartland CC |
| Denzel Clarke | ON | Everest Academy | 2018 | OF | Cal State Northridge |
| Andrew Corby | ON | Ajax High School | 2017 | LHP | |
| Matthew Deen | ON | St. Marcellinus | 2018 | 1B | Vermont State University - Castleton |
| Michael Deluca | ON | Bill Crothers Secondary School | 2017 | OF | University of Toronto |
| DJ Doiron | ON | Westside | 2017 | 2B | |
| Justin Doran | ON | Chatham Kent Secondary School | 2017 | SS | Wabash Valley JC |
| Mike Duwyn | ON | Delhi District | 2018 | 2B | Okanagan College |
| Jared Evans | ON | St.Stephen Catholic School | 2018 | RHP | Mars Hill College |
| Jack Fabregas | ON | North Toronto Collegiate Institute | 2017 | RHP | |
| Aidan Findlay | ON | Kenner Collegiate | 2017 | RHP | Lakeland CC |
| Bradley Fraser | ON | Our Lady of Lourdes | 2018 | OF | |
| Connor Goldsmith | ON | John McGregor Secondary School | 2018 | OF | |
| Jared Gonsalves | ON | R.H King | 2018 | SS | |
| Julius Halkett | ON | STMary's | 2017 | 1B | |
| Sebastian Halkett | ON | St.Marys | 2017 | RHP | |
| Luke Hallarn | ON | Brebeuf High School | 2017 | RHP | |
| Liam Hicks | ON | Lawrence Park CI | 2017 | C | Mineral Area JC |
| Jordan Humber | ON | St Paul Catholic SS | 2017 | OF | |
| Michael Ireland | ON | Donal A. Wilson H.S. | 2017 | RHP | |
| Ajith Jeyaranjan | ON | Cardinal Ambrozic Catholic Secondary School | 2017 | OF | |
| Ryan Johnston | ON | Appleby College | 2018 | SS | Bowling Green State |
| Phillip Kolanowski | ON | Malvern Collegiate Institute | 2017 | 2B | |
| Evan Lang | ON | Burlington Central | 2017 | LHP | Monroe Community College |
| Bryce Larson | ON | Riverdale Collegiate | 2017 | 1B | |
| Robert Lindsay | ON | Our Lady of Mount Carmel | 2018 | SS | |
| Connor Lipinski | ON | North Toronto Collegiate | 2017 | OF | |
| Brian MacCormack | ON | Holy Trinity Catholic High School | 2017 | C | |
| Carter MacDonald | ON | Simcoe Composite | 2017 | C | Laurier University |
| Mike MacDougall | ON | Upper Canada College | 2018 | RHP | |
| Jakob MacLeod | ON | Malvern | 2017 | RHP | |
| Danny Mahoney | ON | York Mills Colleigiate | 2017 | C | Lake Michigan JC |
| Kyle Maves | ON | Corpus Christi Catholic Secondary School | 2017 | 2B | Quinnipiac |
| Carter May | ON | Simcoe Composite School | 2017 | RHP | |
| Parker Micucci | ON | Christ The King | 2018 | 1B | |
| Liam Miller-North | ON | Pickering High School | 2015 | RHP | |
| AJ Min | ON | A.Y. Jackson | 2018 | C | |
| Ben Mitchell | ON | Bill Crother's | 2018 | OF | British Columbia |
| Liam Nelson | ON | Blyth Academy | 2017 | SS | |
| Mitch Osborne | ON | Father Leo J. Austin | 2017 | C | Polk State College |
| Corben Peters | ON | St. Peter Catholic High School | 2017 | RHP | Cloud County CC |
| Cole Pippo | ON | Cardinal Carter CHS | 2017 | 2B | |
| Dustin Plant | ON | Richmond Hill | 2017 | LHP | |
| Storm Ricciotti | ON | Holy Names | 2018 | 2B | Erie CC |
| Devon Robb | ON | Holy Cross Secondary School | 2017 | RHP | Notre Dame College |
| Brendan Robertson | ON | Paul Dwyer Catholic HS | 2017 | OF | |
| Matthew Robinson | ON | R.S.McLaughlin C.V.I | 2018 | C | Durham College |
| Mateo Roque | ON | Our Lady of Lourdes | 2019 | 2B | University of Waterloo |
| Brock Ryan | ON | St Benedicts | 2017 | RHP | |
| Jeremy Schouppe | ON | Elmira District Secondary School | 2018 | 1B | McCook CC |
| Alex Seelman | ON | Christ The King | 2018 | C | University of Waterloo |
| Justin Snow | ON | Westmount Secondary | 2017 | RHP | Southeastern CC (IA) |
| Michael Ssemanda | ON | Cathedral | 2017 | OF | Canisius |
| Mitchell Stemerdink | ON | Resurrection Catholic Secondary School | 2017 | RHP | Southwest Baptist University |
| Ian Taugher | ON | Neil McNeil High School | 2017 | RHP | |
| Ben Teplin | ON | Bill Crothers Secondary School | 2017 | 1B | IUPU-Fort Wayne |
| Daniel Thibideau | ON | Guelph C.V.I. | 2017 | LHP | |
| Jacob Underwood | ON | Bishop Tonnos | 2017 | C | |
| Sean Walmsley | ON | Nelson High School | 2017 | OF | |
| Jack Walsh | ON | John McCrae Secondary School | 2018 | C | |
| Dawson Walters | ON | Blyth | 2018 | 1B | Eastern Oklahoma State JC |
| Cameron Wilcox | ON | St Marcellinus | 2018 | C | Humber College |
| Brian Zapp | ON | Sir John A Macdonald | 2019 | SS | Miami (OH) |