Player Commitments
| Name | State | School | Class | Pos. | Commitment |
| Braden Bornstein | TN | Lipscomb Academy | 2022 | RHP | Trevecca Nazarene |
| Cole Boroff | OH | Johnstown-Monroe | 2023 | OF | Capital University |
| Tiger Borom | GA | Strong Rock Christian | 2020 | OF | Lipscomb |
| Clayton Boroski | FL | St. Cloud | 2021 | RHP | North Florida |
| Chase Borowitz | NY | John Jay | 2016 | RHP | Le Moyne College |
| Matt Borowski | VA | George Marshall | 2015 | 3B | St. Bonaventure |
| Alex Borowski | MI | Orchard Lake St. Mary's | 2018 | RHP | Adrian College |
| Vince Borrelli | IL | Andrew | 2020 | RHP | South Suburban JC |
| Gavin Borrello | NY | Frontier | 2022 | C | Albany |
| Dante Borris | PA | Mt. Lebanon | 2020 | SS | Seton Hill |
| Zack Borsa | PA | McDowell | 2013 | LHP | Parkland JC |
| Evan Borst | IA | Norwalk | 2021 | RHP | Nebraska |
| Michael Borst | IL | McHenry | 2015 | 1B | Minot State |
| Blake Bortak | GA | Archer | 2020 | OF | Samford |
| Chris Borter | CT | Hopkins | 2019 | SS | Middlebury College |
| Michael Borth | PA | Biglerville | 2013 | RHP | Harford CC |
| Coleman Borthwick | FL | South Walton | 2026 | 3B | Auburn |
| Joshua Bortka | KS | Turner | 2018 | RHP | Cowley County CC |
| Richard Bortle | MI | Hartland | 2016 | 3B | Concordia (MI) |
| Zachary Bortner | PA | Northeastern | 2023 | LHP | Frederick CC |
| Bryce Borton | OH | Defiance | 2017 | OF | McHenry County JC |
| Cameron Bortone | IN | Mishawaka Marian | 2024 | 1B | Manchester College |
| Tyler Bortone | IN | Mishawaka Marian | 2021 | OF | Indiana Wesleyan |
| Ben Bortz | PA | Exeter Township | 2013 | RHP | East Stroudsburg |
| Ryan Borucki | IL | Mundelein | 2012 | LHP | Iowa |
| Dalton Boruff | IL | Breese Central | 2022 | SS | Kaskaskia JC |
| Eddie Borutskie | ON | St. Stephens | 2021 | 2B | Durham College |
| Noah Borwege | MN | Chanhassen | 2020 | LHP | Concordia (MN) |
| Jake Boryca | NE | Millard South | 2016 | RHP | Sioux Falls |
| Ethan Bosacker | MN | Monticello | 2019 | RHP | Xavier |
| Craig Bosanac | MI | Monroe Jefferson | 2014 | 3B | Concordia (MI) |
| Luca Boscarino | ON | St. Aloysius Gonzaga | 2021 | C | Connors State JC |
| Carter Bosch | VA | The Potomac School | 2018 | RHP | Georgetown |
| Ryan Bosch | MI | Fruitport | 2025 | LHP | Wake Forest |
| Seth Boschert | IL | Alton | 2016 | C | Lindenwood University (MO |
| Nate Boschma | MI | Hudsonville High School | 2013 | 2B | Northwood |
| Steven Boscia | NY | Stepinac | 2016 | RHP | Hofstra |
| Cory Bosecker | IN | Evansville Central | 2019 | LHP | Butler |
| Brett Bosel | OH | Princeton | 2015 | 3B | Wabash Valley JC |
| Bobby Boser | FL | Wiregrass Ranch | 2021 | OF | South Florida |
| Kyle Boser | MN | Little Falls | 2014 | - | St. Cloud State |
| Sam Boshart | ON | Brooklin | 2018 | 3B | Prince George's CC |
| AJ Boshears | IN | Seymour Senior | 2018 | - | Cincinnati Christian Univ |
| Cody Boshell | FL | Bishop Snyder | 2026 | 1B | Tennessee |
| Lucas Bosiger | VA | Jefferson Forest | 2020 | 1B | Virginia Wesleyan |
| Vinnie Bosio | AL | St. Paul's Episcopal | 2021 | C | Coastal Alabama-South CC |
| Jacob Bosiokovic | OH | Delaware Hayes | 2012 | 3B | Ohio State |
| Gunnar Bosking | IA | Cedar Rapids Washington | 2017 | RHP | Gustavus Adolphus College |
| Justin Bosland | NJ | Roxbury | 2021 | SS | Northeastern |
| Zach Bosler | CO | Doherty | 2017 | C | Northeastern JC |
| Ethan Bosley | KY | Dixie Heights | 2023 | C | Walters State CC |
| Collin Bosley-Smith | VA | Wilson | 2020 | RHP | Duke |
| Tyler Bosma | MI | West Ottawa | 2018 | LHP | Miami (OH) |
| Clayton Bosma | IA | Unity Christian | 2021 | - | Northwestern College (IA) |
| Julian Bosnic | FL | Berkely Prep | 2018 | LHP | South Carolina |
| Christian Bosque | FL | Westminster Christian | 2022 | SS | Florida International |
| Isaac Boss | MO | Westminster Christian Academy | 2024 | RHP | Evansville |
| Owen Boss | MN | DeLaSalle | 2024 | C | Gustavus Adolphus College |
| Brandon Bossard | IL | Nazareth | 2016 | SS | St. John's |
| Ben Bosse | TX | Brenham | 2021 | RHP | Auburn |
| Jacob Bosse | IN | Crown Point | 2020 | LHP | South Suburban JC |
| Peter Bossinas | NY | Ossining | 2019 | RHP | Rochester Institute of Te |
| Joseph Bossinas | NY | Ossining | 2021 | 1B | Dean |
| Kage Bossman | GA | Newnan | 2023 | OF | Lynchburg |
| Tommy Bosso | DE | Saint Marks | 2022 | 2B | Cabrini College |
| Justin Bost | IL | Alleman | 2018 | SS | Monmouth College |
| Austin Bost | TX | Port Neches Groves | 2018 | 3B | Panola JC |
| Jordan Bostater | OH | Bryan | 2014 | 1B | Ohio |
| Hunter Bostater | OH | Fairview | 2019 | 3B | Tiffin University |
| Alex Bostedt | FL | A3 academy | 2024 | OF | Wabash Valley JC |
| Joshua Bostick | TX | McKinney | 2020 | RHP | Hillsborough CC |
| Alex Boston | MN | Stillwater | 2024 | OF | Minnesota-Duluth |
| Zach Bostrand | IL | Marmion | 2023 | 1B | St. Norbert College |
| Bjorn Bostrom | IL | Wheaton North | 2018 | 1B | Wheaton College (IL) |
| Brandon Bostrom | MN | Annandale | 2018 | - | Central Lakes JC-Brainerd |
| Michael Boswell | PA | Riverside | 2016 | RHP | Tiffin University |
| Ben Boswell | TX | Decatur | 2021 | C | Hardin-Simmons University |
| Braedon Boswell | IA | Lamoni | 2022 | C | Simpson College |
| Yashion Boswell | IL | Thornton Fractional South | 2021 | RHP | Calumet-St. Joseph's |
| Owen Boswell | TN | Munford | 2024 | OF | Bethel College (TN) |
| Nick Boswell | SC | Chesterfield | 2021 | RHP | USC Union |
| Connor Bosworth | MO | Park Hill | 2014 | OF | Central Missouri |
| Derek Botaletto | NE | Millard North | 2018 | 2B | Nebraska-Kearney |
| Mason Botbol | NC | Pro5 Baseball Academy | 2023 | LHP | St. Johns River State |
| Justin Bote | MO | Wright City | 2017 | 3B | Hannibal-LaGrange College |
| Xavier Botelho | MA | Dighton-Rehoboth Regional | 2021 | 3B | Johnson & Wales |
| Michael Botelho | ON | Christ the King | 2020 | RHP | Western University |
| Elijah Botelle | FL | South Fork | 2020 | LHP | Indian River State |
| Kellan Botha | IL | Wauconda | 2021 | RHP | Dominican University (IL) |
| Ty Bothwell | IN | Boone Grove | 2018 | LHP | Indiana |
| Ryan Bothwell | ON | Napanee District Secondary School | 2015 | 3B | Monroe CC |
| Ethan Botkin | OH | New Albany | 2024 | RHP | Chatham |
| Nicholas Botsaris | MD | Archbishop Spalding | 2020 | 1B | Frostburg State |
| Chris Botsoe | IL | Hinsdale Central | 2015 | OF | Louisville |
| CJ Bott | AZ | Notre Dame Preparatory | 2024 | RHP | UCLA |
| Bradley Bott | SC | Nation Ford | 2019 | OF | UNC Greensboro |
| Cameron Bott | UT | Ridgeline | 2021 | RHP | Salt Lake CC |
| Nick Bottari | NY | Montverde Academy | 2014 | - | Miami |
| Matt Bottcher | IL | Romeoville | 2016 | 2B | Illinois-Chicago |
| Christian Bottero | ON | Michael Power // St. Joseph | 2019 | C | Okanagan |