Underclass Invitational (Invite Only)
| Name | State | School | Class | Pos | Commitment |
| Tyler Acosta | IL | Barrington | 2018 | OF | John A. Logan JC |
| Nick Baldassano | IL | Plainfield East | 2018 | 2B | Aurora University |
| Samson Barboza | IL | Solorio | 2018 | SS | Olivet Nazarene University |
| Brendan Barrette | IL | Oak Park-River Forest | 2018 | RHP | Parkland College |
| Kyle Bartman | IL | Metamora | 2019 | SS | |
| Keegan Bates | IL | Plainfield North | 2018 | LHP | Valparaiso |
| Connor Bauer | IL | Hinsdale Central | 2018 | C | |
| Graham Bender | IL | Chatham-Glenwood | 2018 | RHP | Lincoln Land CC |
| Brandon Bennitt | IL | Lincoln-Way Central | 2018 | SS | |
| Paul Bergstrom | IL | Notre Dame | 2018 | LHP | Creighton |
| Matt Brenneisen | IL | Sacred Heart-Griffin | 2019 | LHP | |
| Payton Burch | IL | New Trier | 2018 | SS | Denison University |
| Sam Butera | IL | Niles West | 2018 | RHP | St. Louis |
| Julio Cajigas | IL | Romeoville | 2019 | OF | Harper JC |
| Matt Camp | IL | Jacobs | 2018 | RHP | McHenry County JC |
| Mike Carey | IL | Andrew | 2018 | 2B | John A. Logan JC |
| Tommy Carlsen | IL | Naperville Central | 2018 | OF | |
| Brendan Carrane | IL | St Rita | 2019 | SS | St. Louis |
| Francois Castillo | IL | Lake View | 2018 | RHP | John A. Logan JC |
| Ricky Castro | IL | Neuqua Valley | 2018 | RHP | Parkland College |
| Brooks Coetzee | IL | Mahomet-Seymour | 2018 | OF | Notre Dame |
| Branden Comia | IL | Sandburg | 2018 | SS | Illinois |
| Jack Cooper | IL | Edwardsville | 2019 | 3B | |
| Ben Cornelius | IL | Lake Zurich | 2018 | LHP | Heartland CC |
| Braden Cox | IL | Illini Bluffs | 2018 | C | |
| Mason Crews | IL | Manteno | 2018 | C | Kansas State |
| Jonathan Cruz | IL | Elgin | 2018 | SS | Northern Illinois |
| Jared Cushing | IL | Joliet Catholic | 2019 | SS | Texas Tech |
| Anthony DeConcilis | IL | Lake Park | 2018 | SS | Illinois-Springfield |
| Henry Del Valle | IL | St. Laurence | 2018 | C | |
| Nathan Diamond | IL | Oak Park-River Forest | 2019 | LHP | Pepperdine |
| Nate Dirkes | IL | Wheeling | 2018 | RHP | |
| Connor Dressler | IL | Hinsdale Central | 2019 | RHP | |
| Austin Ehren | IL | Carmel Catholic | 2018 | OF | Belmont |
| Clark Elliott | IL | Barrington | 2019 | OF | Michigan |
| Colin Fields | IL | Libertyville | 2018 | RHP | Valparaiso |
| Luke Fitzgerald | IL | Oak Park-River Forest | 2019 | C | Creighton |
| Kevin Garcia | IL | Notre Dame | 2018 | 1B | Concordia University-Chicago |
| Andrew Golde | IL | Lake Forest | 2018 | OF | |
| Steven Hamer | IL | St. Charles North | 2018 | OF | Miami (OH) |
| Jaylen Heard | IL | Marian Catholic | 2018 | 1B | Heartland CC |
| Sean Hebreard | IL | Plainfield East | 2018 | OF | Black Hawk JC-Moline |
| Erik Hedmark | IL | Dundee Crown | 2018 | LHP | Northern Illinois |
| Reid Hendrickson | IL | Edwardsville | 2018 | RHP | Central Missouri |
| Anthony Herron Jr. | IL | Mount Carmel | 2018 | 1B | John A. Logan JC |
| Andrew Hoffmann | IL | Plainfield East | 2018 | RHP | John A. Logan JC |
| Griffin Holderfield | IL | Oak Park-River Forest | 2019 | RHP | Creighton |
| Tyler Horvath | IL | Romeoville | 2018 | LHP | Illinois-Springfield |
| Mason Hull | IL | Effingham | 2018 | SS | Missouri State |
| Mitch Hundley | IL | Fremd | 2019 | C | Morton JC |
| William Jackson | IL | Loyola | 2018 | RHP | University of St. Thomas |
| Sam Jones | IL | Brother Rice | 2018 | SS | Indiana |
| Jake Kapers | IL | Mount Carmel | 2018 | C | Valparaiso |
| Isaac Kaufmann | IL | Marian Central Catholic | 2018 | LHP | McHenry County JC |
| Edward Kerner | IL | Elmwood Park | 2019 | RHP | Dominican University (IL) |
| Floyde Kinds | IL | Harlan | 2018 | SS | |
| Dakota Kotowski | IL | Providence Catholic | 2018 | OF | Missouri State |
| Simon Lane | IL | Hinsdale Central | 2019 | RHP | Grinnell College |
| Caleb Larson | IL | Wheaton Warrenville South | 2018 | RHP | Illinois |
| Nathan Lavender | IL | El Paso | 2018 | LHP | Illinois |
| Grant Leader | IL | Lyons Township | 2019 | RHP | Illinois |
| Cherokee LeBeau | IL | Minooka | 2018 | 3B | Oakland |
| Brodie Lenon | IL | Goreville | 2018 | LHP | John A. Logan JC |
| CJ Lewis | IL | Normal West | 2019 | RHP | Parkland College |
| Christian Lucio | IL | Mount Carmel | 2018 | SS | Eastern Kentucky |
| Eric Lundell | IL | Marmion | 2019 | RHP | Concordia University-St. Paul |
| Danny Machaj | IL | Lyons Township | 2019 | C | |
| Charlie Mangieri | IL | Dunlap | 2018 | 1B | Northwestern |
| Vincent Massaglia | IL | Morton | 2018 | OF | Illinois Central JC |
| Jacob Maton | IL | Chatham-Glenwood | 2018 | RHP | Coastal Carolina |
| Giuseppe Mattera | IL | Pleasant Plains | 2018 | LHP | Lincoln Land CC |
| Carlos McFadden | IL | Roberto Clemente | 2018 | SS | |
| Nathan Milianti | IL | Mount Carmel | 2019 | C | |
| Blake Munch | IL | Joliet Catholic | 2018 | SS | |
| Donovan Nanfeldt | IL | Andrew | 2018 | 1B | Indiana University Southeast |
| Jacob Newman | IL | Glenbrook South | 2018 | RHP | Rutgers |
| Myles Norman | IL | Morgan Park | 2018 | RHP | Indian Hills CC |
| Bryce Parish | IL | Mount Olive | 2018 | C | Lewis & Clark CC |
| Ryan Patel | IL | Mundelein | 2018 | RHP | St. Louis |
| Jaylen Patterson | IL | Kenwood | 2018 | OF | Kirkwood CC |
| Joe Payton | IL | Brother Rice | 2018 | RHP | Central Michigan |
| Logan Peterson | IL | Morton | 2018 | RHP | Illinois Central JC |
| Jacob Plastiak | IL | Andrew | 2018 | 3B | Kentucky |
| Miles Powell | IL | Deerfield | 2018 | RHP | |
| Will Pudik | IL | Peoria Notre Dame | 2018 | C | Illinois |
| Cam Redding | IL | New Trier | 2018 | C | St. Louis |
| Daniel Reynolds | IL | Evergreen Park | 2018 | OF | South Suburban JC |
| Nathan Rintz | IL | Schaumburg | 2019 | RHP | Arkansas |
| Cameron Robinson | IL | Champaign Central | 2018 | RHP | Louisville |
| Josh Rose | IL | Geneva | 2018 | C | |
| Jacob Rosenkranz | IL | Stevenson | 2019 | RHP | Valparaiso |
| Jake Rosing | IL | Richmond Burton | 2018 | RHP | Louisville |
| Justin Ruehl | IL | Taft | 2018 | RHP | Benedictine University (IL) |
| Kyle Salley | IL | Homewood-Flossmoor | 2018 | LHP | Duke |
| Steven Sanchez | IL | Mundelein | 2018 | LHP | Arkansas |
| Brett Selke | IL | Brother Rice | 2018 | OF | |
| Nico Shadid | IL | Peoria Notre Dame | 2018 | OF | |
| Nathan Shapiro | IL | New Trier | 2018 | 3B | Case Western Reserve |
| Lucas Sharisky | IL | Streator | 2019 | 2B | Rockford University |
| D'Eric Shenault | IL | Kenwood | 2018 | SS | Kirkwood CC |
| Sean Sinisko | IL | Geneva | 2018 | LHP | Illinois State |
| Danny Sperling | IL | Wauconda | 2018 | 2B | McHenry County JC |
| Mason Sykes | IL | Conant | 2018 | 3B | Wabash Valley JC |
| Joseph Tello | IL | East Peoria | 2018 | 1B | |
| Evan Tenuta | IL | Sandburg | 2018 | RHP | Notre Dame |
| Trey Torain | IL | Loyola | 2018 | OF | George Washington |
| Jared Trivette | IL | Illiana Christian | 2018 | SS | Benedictine University (IL) |
| Zaid Walker | IL | Homewood-Flossmoor | 2018 | OF | Michigan State |
| Braeden Wegner | IL | Jacobs | 2018 | OF | McHenry County JC |
| Andrew Wiegman | IL | Carmel Catholic | 2019 | SS | Louisville |
| Andrew Wilhite | IL | Stillman Valley | 2018 | SS | Minnesota |
| Riggs Wilkinson | IL | Morton | 2019 | OF | |
| Scott Youngbrandt | IL | Andrew | 2018 | RHP | St. Louis |