2018 Underclass Games (Invite Only)
| Name | State | School | Class | Pos | Commitment |
| Cooper Blythe | IN | North | 2022 | 1B | Missouri-St. Louis |
| Brock Buckley | IN | Covenant Christian | 2022 | RHP | Indiana Wesleyan University |
| Garrett Causey | IN | Evansville Central | 2021 | OF | Wabash Valley JC |
| Tyler Cerny | IN | Center Grove | 2022 | SS | Indiana |
| Cordell Coburn | IN | North | 2021 | C | John A. Logan JC |
| Caden Curry | IN | Center Grove | 2022 | LHP | |
| Reece Davis | IN | Perry Central | 2021 | 1B | Southeastern Illinois JC |
| Drew Dickson | IN | Zionsville | 2022 | RHP | Northwestern |
| Hunter Dobbins | IN | Mt Vernon | 2021 | C | Ball State |
| Carter Doorn | IN | Lake Central | 2021 | RHP | Purdue |
| Andrew Dutkanych IV | IN | Brebeuf | 2022 | RHP | Vanderbilt |
| Mitchell Evans | IN | Center Grove | 2022 | OF | |
| Grant Fahrlander | TX | St. Michael's | 2022 | C | Oregon |
| Ty Gill | IN | Valparaiso | 2021 | SS | Purdue |
| Evan Goforth | IN | Floyd Central | 2021 | SS | Indiana |
| Max Grueninger | IN | North Central HS | 2021 | SS | |
| Owen Guilfoy | IN | Center Grove | 2022 | 3B | Indianapolis |
| Parker Harrison | IN | Columbus East | 2021 | 3B | Wright State |
| PBR Indiana | IN | Indiana | 2005 | RHP | |
| Evan Jensen | IN | Zionsville | 2022 | SS | |
| Trey Johnson | IN | Hauser | 2020 | 1B | Purdue University-Northwest |
| Cole Jones | IN | North Knox | 2021 | SS | |
| Kyle Lavanchy | IN | North Posey | 2021 | SS | Murray State |
| Adam Leising | IN | Homestead Senior | 2021 | C | |
| Brady Linkel | IN | South Ripley | 2021 | RHP | Ohio |
| Keaton Mahan | IN | Westfield | 2022 | OF | Wabash Valley JC |
| Jack Markus | IN | Carmel | 2021 | C | |
| Max McEwen | IN | Jeffersonville | 2022 | RHP | Indiana State |
| Andrew Oesterling | IN | Oldenburg Academy | 2021 | SS | |
| Treyton Owens | IN | Scottsburg | 2021 | 2B | |
| Brock Schooley | IN | Franklin Central | 2020 | 1B | |
| Sam Secrest | IN | Roncalli | 2022 | 1B | |
| Blake Seslar | IN | Center Grove | 2021 | OF | |
| Aidan Shoemaker | IN | Noblesville | 2022 | OF | |
| Evan Snyder | IN | Churubusco | 2021 | 1B | Adrian College |
| Gage Stanifer | IN | Westfield | 2022 | RHP | Cincinnati |
| Aaron Steinfeldt | IN | Bloomington North | 2021 | 1B | |
| Gabe Stout | IN | Crown Point | 2022 | RHP | Indiana Wesleyan University |
| Brendan Tabor | IN | New Palestine | 2021 | C | Anderson University (IN) |
| Tobie Teke | IN | South Dearborn | 2021 | OF | Muskingum University |
| Asher Thompson | IN | Heritage Christian | 2021 | 2B | Ohio Christian University |
| Zack Todd | IN | Wes-Del | 2022 | RHP | Indiana Wesleyan University |
| Xavier Trueblood | IN | Bloomington North | 2020 | OF | |
| Nick Turner | IN | Seeger Memorial Jr.-Sr. High School | 2022 | C | Earlham College |
| Luke Willmann | IN | Wapahani | 2022 | C | Franklin College |
| Braxton Wilson | IN | Martinsville | 2021 | RHP | Purdue University Fort Wayne |