2018 Underclass Preview
| Name | State | School | Class | Pos | Commitment |
| Kaine Benge | IN | North Putnam HS | 2018 | SS | |
| Nick Bland | IN | Lebanon | 2018 | C | Anderson University (IN) |
| Trever Boyle | IN | Princeton | 2018 | C | |
| Alec Brunson | IN | Dekalb | 2018 | C | Purdue University Fort Wayne |
| Hunter Burnett | IN | Center Grove | 2018 | RHP | |
| Ben Calisto | IN | Zionsville | 2018 | LHP | Findlay |
| Nicholas Caplinger | IN | Monrovia | 2018 | RHP | Goshen College |
| Cade Carlson | IN | University | 2018 | RHP | East Tennessee State |
| Justin Clary | IN | North Montgomery | 2018 | SS | |
| Brayton Cornelius | IN | White River Valley | 2018 | LHP | |
| Corey Daffron | IN | Center Grove | 2018 | OF | Ivy Tech Community College |
| Jacob Daftari | IN | Hamilton Southeastern | 2018 | 2B | Indiana Institute of Technology |
| Stephen DeWitt | IN | Heritage Christian | 2018 | LHP | |
| Carson Ebert | IN | Avon High School | 2018 | 1B | |
| Jacob Gilcrest | IN | Center Grove | 2018 | LHP | St. Charles CC |
| Mitchel Gingerich | IN | Bloomington High School South | 2018 | OF | |
| Gary Haas | IN | Easy Central High School | 2017 | SS | |
| Drew Hasson | IN | Columbus East | 2018 | RHP | Northern Illinois |
| Logan Henke | OH | Lasalle High School | 2018 | RHP | |
| Riley Hershberger | IN | Logansport | 2018 | RHP | Danville Area CC |
| Jaret Humphrey | OH | Lewis Cass | 2018 | 1B | Kankakee CC |
| Alex Jamieson | IN | Fishers | 2018 | C | Huntington University (IN) |
| Jacob Johnson | IN | Center Grove | 2018 | RHP | Xavier |
| Grant Johnston | IN | Hamilton Southeastern | 2018 | RHP | Purdue University Fort Wayne |
| Alex Klotz | IN | Fishers | 2018 | RHP | |
| Nolan Lebamoff | IN | Carroll | 2018 | RHP | Kankakee CC |
| Michael Machnic | IN | John Glenn | 2018 | 1B | Kankakee CC |
| Chase McKenzie | IN | Penn | 2018 | RHP | Quincy University |
| Jackson Mitchell | IN | Plainfield | 2018 | 2B | Earlham College |
| Noah Mourey | IN | Cascade | 2018 | RHP | |
| Tyler Owens | IN | Noblesville | 2018 | RHP | Northwood University |
| Hugh Pebworth | IN | Brebeuf Jesuit | 2018 | C | |
| Kyle Pendleton | IN | McCutcheon | 2018 | RHP | Anderson University (IN) |
| Max Pfledderer | IN | Avon | 2018 | C | |
| Isaac Polen | IN | Brownsburg | 2018 | SS | |
| Will Richman | IN | Brebeuf Jesuit | 2018 | RHP | Grinnell College |
| Michael Rosen | IN | Hamilton Southeastern | 2018 | 2B | |
| Ryan Sauter | IN | Center Grove | 2022 | 3B | |
| Grant Smethurst | IN | Bloomington South | 2018 | RHP | |
| Logan Smith | IN | Eastern | 2018 | C | |
| Bryce Tidd | IN | Center Grove | 2018 | RHP | |
| Derek Wagner | IN | Tri-West Hendricks | 2018 | C | Indiana University Southeast |
| Dylan Wagner | IN | Lafayette Jefferson | 2018 | C | Lake Land JC |
| Jesse Wainscott | IN | Perry Meridian high school | 2018 | RHP | Eastern Illinois |
| Tyler Welborn | IN | Lebanon | 2018 | 1B | |
| Owen Wiles | IN | Knightstown | 2018 | C | |
| Justin Wilson | IN | Evansville Bosse | 2018 | RHP | |
| Kyle Winkler | IN | Center Grove | 2018 | C | |
| Anthony Zaccardelli | IN | Lawrence Central | 2018 | 3B |