Preseason I.D. - Illiana
| Name | State | School | Class | Pos | Commitment |
| Kadin Abegg | IN | New Prairie | 2017 | RHP | Marian University (IN) |
| Aidan Anderson | IL | Marian Catholic | 2017 | C | Robert Morris University |
| Jacob Anderson | IN | Munster | 2018 | RHP | Rockhurst University |
| Arton Bislimi | IL | Richards | 2018 | SS | |
| Andrew Blair | IL | Maroa Forsyth | 2017 | 1B | |
| Malik Blair | IL | Kenwood | 2018 | C | Frontier Community College |
| Michael Bohlen | IL | Marian Catholic | 2019 | 3B | Northern Kentucky |
| Michael Botthof | IL | St. Rita | 2018 | RHP | |
| Collin Brown | IL | Bremen | 2018 | C | South Suburban JC |
| Grant Brunt | IN | Chesterton | 2018 | RHP | Purdue |
| Angelo Cantelo | IL | Marian Catholic | 2019 | C | Lewis University |
| Nicholas Cecala | IL | Maine South | 2016 | C | |
| Torre Cecala | IL | Maine South | 2018 | OF | |
| Robert Chayka | IL | Solorio | 2017 | OF | Spoon River JC |
| Trevor Davis | IL | Danville | 2020 | C | Eastern Illinois |
| Jacob DeFries | IN | Crown Point | 2018 | SS | Indiana Institute of Technology |
| Tony Deluna | IL | Morton | 2017 | 1B | |
| Shayne Devine | IN | Portage | 2017 | 2B | |
| Thomas Englehart | IL | Marist | 2017 | RHP | |
| Tim Franczak | IL | Westmont | 2017 | LHP | |
| Niles Gall | IL | Richards | 2018 | OF | |
| Nick Geisen | IN | Crown Point | 2019 | RHP | |
| Corey Graham | IL | Crete-Monee | 2018 | OF | Kirkwood CC |
| Conner Hoffman | IN | Lake Central | 2018 | 1B | Purdue University-Northwest |
| Cade Howard | IN | Munster | 2019 | SS | |
| Adam Huekels | IL | Marian Catholic | 2020 | OF | Niagara |
| Evan Hummel | IL | New Trier | 2018 | SS | |
| Nick Iannantone | IL | Joliet Catholic | 2019 | OF | Johnson County CC |
| Ethan Krumwiede | IL | Batavia | 2017 | RHP | |
| Eric Lakomek | IN | Hanover Central | 2017 | 3B | Wabash College |
| Thomas Larson | IL | Families of Faith Christian | 2017 | OF | Olivet Nazarene University |
| Jalen Lemons | IL | Simeon | 2018 | 3B | Frontier Community College |
| Josh Lindeman | IN | Crown Point | 2019 | SS | Purdue University-Northwest |
| Kyle Litwicki | IN | Lake Central | 2018 | RHP | |
| Matthew Litwicki | IN | Lake Central | 2017 | RHP | Indiana |
| Carlos Lopez | IN | Morton | 2018 | SS | |
| Jamarion Loston | IL | Morgan Park | 2018 | SS | Kirkwood CC |
| Colin Mack | IN | Morgan Township | 2018 | 2B | Indiana University-South Bend |
| Matthew Manint | IL | Tri-Valley | 2018 | C | Fontbonne University |
| Logan Missal | IN | Lowell | 2019 | RHP | |
| Maurice Munoz | IL | Marian Catholic | 2018 | OF | Aurora University |
| Zach Orn | IN | Eastside | 2017 | SS | Valparaiso |
| Will Peterson | IL | Evanston | 2018 | RHP | |
| Noah Petrusevski | IL | Richards | 2017 | SS | |
| Alex Pittman | IL | Morgan Park | 2019 | 3B | Frontier Community College |
| Joshua Povlock | MI | Vicksburg | 2017 | 3B | Glen Oaks CC |
| Julian Rutherford | IN | Griffith | 2018 | 3B | |
| Nathan Sanchez | IL | Lake View | 2019 | C | |
| Miles Simington | IL | Normal Community | 2017 | OF | Purdue |
| Wendell Smith | IL | Marist | 2019 | 3B | Morehouse College |
| Jimmy Staab | IL | Sangamon Valley | 2017 | RHP | McHenry County JC |
| Connor Stephenson | IL | Normal Community West | 2020 | C | Case Western |
| Spencer Strobel | IN | Avon | 2017 | LHP | Purdue University Fort Wayne |
| Noa Taylor | IL | Argo | 2017 | 2B | |
| Ryan Thometz | IN | Munster | 2018 | C | |
| Chris Torres | IN | Chesterton | 2018 | RHP | Wabash Valley JC |
| Xavier Unzueta | IN | Munster | 2018 | SS | |
| Jake Walters | IL | St. Thomas More | 2018 | RHP | Triton JC |
| Owen Waunn | IL | Fenwick | 2018 | C | DePauw University |
| Alex Weakland | IN | Munster | 2018 | LHP | |
| Joey Wells | IN | Lake Central | 2019 | SS | |
| Noah Wells | IN | Lake Central | 2017 | LHP | |
| Barry White | IL | Simeon | 2019 | OF | Muskegon CC |
| Eddie Wilkins | IL | Reed Custer | 2017 | RHP | Illinois-Springfield |
| Joshua Williams | IL | Simeon | 2019 | OF | Indian Hills CC |
| Tavares Williams | IL | Marian Catholic | 2018 | 3B | Iowa Wesleyan University |
| Kyle Winkle | IL | Joliet Catholic | 2018 | RHP | Elmhurst University |
| Kyle Wisch | IL | Hinsdale Central | 2019 | RHP | Nebraska |