Unsigned Senior Showcase
- PBRPlus Illinois Unsigned Senior Showcase: Top Overall Prospects 10/18/19
- IL Unsigned Senior Showcase: Pitcher Analysis 10/17/19
- IL Unsigned Senior Showcase: Infielder Analysis 10/16/19
- IL Unsigned Senior Showcase: Outfielder Analysis 10/15/19
- IL Unsigned Senior Showcase: Catcher Analysis 10/14/19
- IL Unsigned Senior Showcase: Statistical Analysis 10/08/19
- IL Unsigned Senior Showcase: Quick Hits 10/07/19
- IL Unsigned Senior Showcase: Preview 10/02/19
| Name | State | School | Class | Pos | Commitment |
| Ethan Alexander | IL | Marian Catholic | 2020 | RHP | Rend Lake JC |
| Kyle Anderson | IL | Minooka | 2020 | RHP | Heartland CC |
| Ryan Antrim | IL | Lake Forest | 2020 | RHP | Carleton College |
| Steve Antrim | IL | Lake Forest | 2020 | 2B | Carleton College |
| Aiden Asllani | IL | Stevenson | 2020 | 3B | |
| Cord Babcock | IL | Grant | 2020 | LHP | |
| Joseph Bacarella | IL | Elmwood Park | 2020 | SS | Wisconsin-Oshkosh |
| Nathan Barbato | IL | Oak Forest | 2020 | RHP | Concordia University (MI) |
| David Barboza | IL | Solorio | 2020 | RHP | |
| Joseph Batusich | IL | Joliet Catholic | 2020 | C | Lake Land JC |
| Tyler Bayless | IL | Metea Valley | 2020 | SS | Missouri Valley College |
| Adam Bendoraitis | IL | Batavia | 2020 | RHP | Augustana College (IL) |
| Ian Benner | IL | Glenwood | 2020 | OF | Lincoln Land CC |
| Tyler Bialek | IL | Bolingbrook | 2020 | RHP | Knox College |
| Shane Bonner | IL | South Elgin | 2020 | 2B | Judson University (IL) |
| Jacob Bosse | IN | Crown Point | 2020 | LHP | South Suburban JC |
| Ryan Brenn | IL | Minooka | 2020 | 3B | |
| Zach Brothen | IL | Lincoln-Way East | 2020 | C | |
| Alan Brown | IL | Oak Park-River Forest | 2020 | OF | Morehouse College |
| Michael Bunch | IL | Romeoville | 2020 | OF | Oakton CC |
| Michael Campanaro | IL | St. Patrick | 2020 | RHP | Elmhurst University |
| Trevor Cashmer | IL | Tinley Park | 2020 | C | Olive-Harvey JC |
| Justin Chapa | IL | Morton East | 2020 | RHP | |
| Nick Clevenger | IL | Benet Academy | 2020 | 1B | |
| Connor Collins | IL | Kaneland | 2020 | LHP | Elgin CC |
| Xavier Correa | IL | Jones College Prep | 2020 | 2B | Transylvania University |
| Jacob Curtis | IL | Chatham-Glenwood | 2020 | 2B | Lincoln Land CC |
| Kade Cyr | IL | Bradley Bourbonnais | 2020 | 2B | |
| Michael Davis | IL | St. Charles North | 2020 | C | North Central College |
| Daniel DeCero | IL | Lincoln-Way East | 2020 | OF | |
| Lucas DeLaere | IL | United Township | 2020 | OF | |
| Joshua DeLeon | IL | Taft | 2020 | RHP | Spoon River JC |
| Santino Domingo | IL | York | 2020 | LHP | Trinity Christian College |
| Harrison Dubois | IL | Lincoln-Way Central | 2020 | RHP | South Suburban JC |
| Dylan Engel | IL | Marian Catholic | 2020 | 2B | Illinois Wesleyan University |
| Zachary Fell | IL | Stevenson | 2020 | SS | Indianapolis |
| Danny Fieweger | IL | Wheaton North | 2020 | LHP | Saint Ambrose University |
| Cole Fiorenza | IL | Libertyville | 2020 | OF | North Park University |
| Jack Fisher | IL | Yorkville | 2020 | RHP | Aurora University |
| Davey Fitzpatrick | IL | Lincoln-Way East | 2020 | 3B | Lewis University |
| Isaak Flaming | ME | Morse | 2020 | SS | |
| Charles Gannon | IL | Dekalb | 2020 | C | Milwaukee School of Engineering |
| Omar Garcia | IL | Lake View | 2020 | SS | |
| Jacob Gates | IL | Vernon Hills | 2020 | 1B | Trine University |
| Cael Geijer | IL | Lincoln-Way East | 2020 | OF | |
| Jack Gilbert | IL | Mount Carmel | 2020 | C | |
| Colin Gorz | IL | Benet Academy | 2020 | SS | |
| Christian Grems | IL | Orion | 2020 | SS | Aurora University |
| Jonathan Guerrero | IL | George Washington | 2020 | LHP | |
| Ricky Haljean | IL | Lake View | 2020 | OF | Harper JC |
| Andre Harris II | IL | Lindblom | 2020 | 2B | |
| Brian Henehan | IL | Andrew | 2020 | OF | Aurora University |
| Isaiah Hernandez | IL | De La Salle | 2022 | C | |
| Cooper Herold | IL | Minooka | 2020 | RHP | John A. Logan JC |
| Max Herr | IL | Champaign Central | 2020 | C | Parkland College |
| Braden Highley | IL | Mt. Zion | 2020 | OF | Millikin University |
| Brendan Holloway | IL | Vernon Hills | 2020 | OF | Oakton CC |
| Will Jaynes | IL | Waubonsie Valley | 2020 | RHP | Western Illinois |
| Joey Kalish | IL | Elk Grove | 2020 | RHP | Elmhurst University |
| Daniel Kawiecki | IL | Riverside-Brookfield | 2020 | LHP | |
| Finn Kibby | IL | Saint Ignatius | 2020 | RHP | |
| Lukas Kim | IL | Conant | 2020 | RHP | |
| Connor King | IL | Brother Rice | 2020 | OF | |
| Zachary Kolb | IL | Plainfield South | 2020 | SS | |
| Mason Kottmeyer | IL | Kaneland | 2020 | RHP | Michigan State |
| Nate Kremkow | IL | Montini Catholic | 2020 | OF | Illinois-Springfield |
| Tanner Krist | IA | WDM Valley | 2020 | SS | |
| Nicholas Kuras | IL | Bolingbrook | 2020 | OF | |
| Jaden Lee | IL | Crete-Monee | 2020 | OF | Muskegon CC |
| Ricky Lepic | IL | Hinsdale South | 2020 | RHP | |
| Danny LoConte | IL | Andrew | 2020 | SS | |
| Bryce Luckey | IL | Moline | 2020 | 3B | Augustana College (IL) |
| Prentiss Luster | IL | Marian Catholic | 2020 | OF | Iowa Wesleyan University |
| Christopher MacDougall | IL | Fremd | 2020 | C | Lewis University |
| Michael Machamer | IL | Carmel Catholic | 2020 | RHP | |
| Jack Maize | WI | Shoreland Lutheran | 2020 | SS | |
| Ryan Maloney | IL | Providence Catholic | 2020 | 1B | Clark State CC |
| Jake Margolick | IL | Highland Park | 2020 | SS | Kalamazoo College |
| Zachary Markin | IL | United Township | 2020 | SS | |
| Chris McDevitt | IL | St. Rita | 2020 | 1B | Indiana State |
| Brian McNamara | IL | Jones College Prep | 2020 | LHP | |
| Bobby Meifert | IL | Montini Catholic | 2020 | RHP | |
| Luke Meister | IL | Oak Park-River Forest | 2020 | OF | Kenyon College |
| Cupertino Mejia | IL | Oak Forest | 2020 | OF | South Suburban JC |
| Frankie Morales | IL | Roberto Clemente | 2020 | SS | Benedictine University (IL) |
| Jack Morawski | IL | Andrew | 2020 | LHP | Purdue University-Northwest |
| Kevin Murphy | IL | Romeoville | 2020 | OF | Bryant & Stratton - Wisconsin |
| Cole Nelson | IL | St. Charles East | 2020 | SS | Oakton CC |
| AJ Oskorep | IL | Downers Grove South | 2020 | 1B | Culver-Stockton College |
| Brett Panick | IL | St. Rita | 2020 | LHP | Quincy University |
| Bryce Pause | IN | Crown Point | 2020 | LHP | |
| Dylan Pegg | IL | St. Charles North | 2020 | SS | Aurora University |
| Luke Pell | IL | Providence Catholic | 2020 | OF | Marshalltown CC |
| Louis Perona | IL | Lane Tech | 2020 | SS | |
| Andrew Petsche | IL | Oswego East | 2020 | C | Purdue University-Northwest |
| Andrew Pietrucha | IL | Fenton | 2020 | OF | |
| Anthony Ranallo | IL | Lake Forest | 2020 | C | Coe College |
| Devin Redmond | IL | Lincoln-Way West | 2020 | SS | Upper Iowa |
| Carson Roberts | IL | Wheaton North | 2020 | OF | Mesa CC |
| Steven Russell | IL | Lemont | 2020 | C | Marian University (WI) |
| Vincent Sartori | IL | Lockport | 2020 | RHP | Concordia University-Chicago |
| Ryan Scanlon | IL | Warren | 2020 | LHP | Carthage College |
| Henry Schuler | IL | Joliet Catholic | 2020 | RHP | Lewis University |
| Nick Schumann | IL | St. Charles East | 2020 | OF | Elgin CC |
| Michael Sclafani | IL | Montini Catholic | 2020 | RHP | Lewis University |
| Joe Selby | IL | Romeoville | 2020 | SS | Saint Xavier University |
| Jared Sennese | IL | West Chicago | 2020 | RHP | |
| Nicholas Serr | IL | Minooka | 2020 | SS | Lewis University |
| James Severson | IL | Lyons Township | 2020 | RHP | Wisconsin-Milwaukee |
| Tommy Shaw | IL | Kaneland | 2020 | RHP | Millikin University |
| James Sibert | IL | Huntley | 2020 | RHP | |
| Alex Skupa | IL | Batavia | 2020 | OF | Webster University |
| Brendan Slota | IL | Providence Catholic | 2020 | 3B | Lindenwood University |
| Griffin Spranger | IL | Warren | 2020 | LHP | La Verne |
| Hugh Sullivan | IL | Marist | 2020 | RHP | Spring Hill College |
| Ryan Sullivan | IL | Lyons Township | 2020 | OF | |
| Zachary Taylor | IL | Stevenson | 2020 | C | |
| Gavin Terry | IL | Brooks College Prep | 2020 | OF | South Suburban JC |
| Trevor Thurston | IL | Marian Catholic | 2020 | C | Spoon River JC |
| Trevor Troyner | IL | Minooka | 2020 | 2B | Joliet JC |
| Justin Tumpowsky | IL | Stevenson | 2020 | SS | |
| Kody Velazquez | IL | Rock Falls | 2020 | 3B | Aurora University |
| Christian Waliczek | IL | Home School | 2020 | 1B | Morton JC |
| Aidan Williams | IL | Marmion | 2020 | OF | |
| Charles Williams | IL | Hinsdale Central | 2020 | RHP | |
| Kyle Winston | IL | Andrew | 2020 | RHP | Roosevelt University |
| Kyle Wodziak | IL | Naperville Central | 2020 | RHP | Millikin University |
| Colton Yanish | IL | Lasalle Peru | 2020 | LHP | |
| Jacob Zandy | IL | Tinley Park | 2020 | OF | Elmhurst University |
| Eric Zbinden | IL | Mount Carmel | 2020 | RHP | |
| Zane Zielinski | IL | Lake View | 2020 | SS | Northeast CC |