Preseason I.D. - Romeoville
| Name | State | School | Class | Pos | Commitment |
| Anthony Alvarez | IL | Taft | 2017 | C | Wisconsin-Parkside |
| Benjamin Battley | IL | Zion Benton | 2017 | OF | |
| Jake Berger | IL | Lockport | 2018 | RHP | College of DuPage |
| Rasheed Bernard | IL | Simeon | 2017 | 2B | |
| Daniel Blaum | IL | Downers Grove South | 2018 | OF | |
| Adam Brown | IL | Streator | 2017 | 2B | Knox College |
| Bryce Burton | IL | Marmion | 2018 | OF | Rock Valley JC |
| Will Carey | IL | Plainfield South | 2018 | 1B | |
| Brendan Collins | IL | St. Laurence | 2018 | SS | Wisconsin-Parkside |
| Garret Cook | IL | Plainfield North | 2019 | OF | |
| Andrew DeLaCruz | IL | Litchfield | 2018 | SS | |
| Tony Deluna | IL | Morton | 2017 | 1B | |
| Gavin Doyle | IL | Plainfield North | 2018 | SS | Western Michigan |
| Anthony Fidanzo | IL | Lemont | 2018 | 2B | |
| Anthony Fumagalli | IL | Plainfield North | 2017 | SS | Central College |
| Maurey Garrett | IL | Homewood-Flossmoor | 2018 | 2B | Heartland CC |
| Nathan Gomez | IL | Lake View | 2018 | 2B | Marian University (WI) |
| BJ Graves | IL | Oswego East | 2018 | 1B | |
| Ethan Green | IL | Romeoville | 2018 | 3B | |
| Carson Gross | IL | Plainfield Central | 2018 | C | |
| Chad Haller | IL | Springfield | 2019 | 2B | |
| Ethan Harrast | IL | Hinsdale Central | 2019 | SS | Hamilton College |
| Tim Hasto | IL | St. Charles North | 2017 | SS | Wisconsin-Oshkosh |
| TJ Heafey | IL | Minooka | 2019 | LHP | |
| Kyle Heavey | IL | Downers Grove South | 2019 | RHP | |
| Elijah Herrera | IL | Plainfield East | 2018 | RHP | Monmouth College |
| Adam Hillis | IL | Jacksonville | 2017 | 1B | Quincy University |
| Daniel Hrvojevic | IL | Loyola | 2018 | 3B | |
| Nick Jones | IL | Providence Catholic | 2018 | C | Memphis |
| Brandon Kaihara | IL | Niles West | 2018 | RHP | |
| Caden Kalinowski | IL | Providence Catholic | 2018 | OF | |
| Connor Kelly | IL | Morton | 2018 | RHP | Heartland CC |
| Haegan Kelly | IL | Morton | 2018 | RHP | Heartland CC |
| Justin Klug | IL | Lockport | 2017 | SS | Iowa Wesleyan University |
| Grant Lalla | IL | Glenbard West | 2018 | 1B | Waubonsee CC |
| Dominic Lentini | IL | Plainfield South | 2018 | OF | Roosevelt University |
| Ben Ligacki | IL | Lockport | 2017 | OF | |
| Dominic Listi | IL | Prairie Ridge | 2019 | OF | North Central College |
| Ryan Louck | IL | Plainfield East | 2018 | LHP | Maryville University |
| Vinny Lovato | IL | Minooka | 2017 | 2B | |
| James Marcinkowski | IL | Sycamore | 2017 | OF | |
| Seth Masters | IL | Sandburg | 2018 | 1B | Illinois-Springfield |
| Michael Metesh | IL | Morris | 2018 | 3B | |
| Bo Minor | IL | Paris | 2017 | C | Rend Lake JC |
| Michael Mitchell | IL | Lyons Township | 2018 | SS | |
| Westin Muir | IL | St. Charles North | 2017 | RHP | Wisconsin-Whitewater |
| Tommy Nelsen | IL | St. Charles North | 2018 | OF | Wisconsin-La Crosse |
| Jacob Overbeck | IL | Morris | 2019 | RHP | Southwestern Illinois JC |
| Nicolas Palermo | IL | St. Ignatius | 2019 | OF | Oberlin College |
| Trevor Pavelka | IL | Naperville Central | 2019 | C | |
| Billy Pierce | IL | Plainfield East | 2018 | RHP | Truman State University |
| Billy Pindozzo | IL | De La Salle | 2019 | OF | |
| Nick Plankenhorn | IL | St. Bede | 2017 | 2B | |
| Niko Pozzi | IL | Mount Carmel | 2018 | C | |
| Joe Prestamer | IL | Lincoln-Way East | 2017 | RHP | Illinois Wesleyan University |
| Chris Ralph | IL | Waubonsie Valley | 2017 | SS | Calvin University |
| Nathan Ricken | IL | Oswego | 2018 | RHP | |
| Jack Rigoni | IL | Neuqua Valley | 2018 | OF | Jefferson JC |
| Brad Roberts | IL | Plainfield South | 2017 | 3B | |
| Austin Robinson | IL | Mendota | 2019 | C | |
| Josh Rose | IL | Geneva | 2018 | C | |
| Steven Salvino | IL | Lockport | 2018 | SS | College of DuPage |
| Michael Sanfratello | IL | De La Salle | 2017 | RHP | |
| Alex Santiago | IL | Plainfield Central | 2017 | 2B | |
| Andrew Schimmoler | IL | Oswego | 2018 | RHP | Saint Leo University |
| Josh Schuetz | IL | Plainfield East | 2017 | 1B | |
| Zac Schultz | IL | Minooka | 2017 | 3B | |
| Lucas Sharisky | IL | Streator | 2019 | 2B | Rockford University |
| David Stocking | IL | Joliet Central | 2017 | 2B | |
| Ben Swords | IL | Freeport | 2017 | 3B | Webster University |
| Nicholas Talarico | IL | Marmion | 2019 | 3B | Case Western Reserve |
| Easton Tally | IL | Lemont | 2018 | OF | |
| Trevor Taus | IL | Marmion | 2017 | 2B | Ohio Wesleyan University |
| Alex Verta | IL | St. Laurence | 2017 | 3B | |
| Zach Verta | IL | St. Laurence | 2018 | OF | Calumet College of St. Joseph |
| Sean Wepfer | IL | Oswego East | 2020 | OF | Triton JC |
| Jason Wittenberg | IL | Sycamore | 2017 | 2B | |
| Devon Zielke | IL | Oswego East | 2017 | 2B |