| | | | | |
| Academy for College and Career Exploration | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Archbishop Curley High School | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Archdiocese of Baltimore |
| Arundel High School | C | 1 | 1 | MSO Regional Div C-02 Central Region | Anne Arundel County Public Schools |
| Atholton HS | C | 3 | 3 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| Baltimore City College | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Baltimore Design School | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Baltimore Fake School | B | 1 | | _I am Unsure, Div. B (MD Directors will assign) | Baltimore City Public School System (BCPSS) |
| Baltimore International Academy East | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Baltimore Montessori Public Charter School | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Baltimore Polytechnic Institute | C | 2 | 2 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Bard High School Early College Baltimore | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Bethesda-Chevy Chase High School | C | 1 | 1 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Bonnie Branch Middle School | B | 1 | 1 | MSO Regional Div B East/West | Howard County Public Schools |
| Bullis | C | 1 | 1 | MSO Regional Div C-01 Western Region | Independent |
| Burleigh Manor Middle School | B | 3 | 3 | MSO Regional Div B East/West | Howard County Public Schools |
| Burleigh Manor MS- Invitational Team | B | 1 | 1 | _I am Unsure, Div. B (MD Directors will assign) | Howard County |
| Centennial High School | C | 2 | 2 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| Chesapeake Math & IT Academy North Div. B | B | 2 | 2 | MSO Regional Div B East/West | PGCPS |
| Chesapeake Math & IT Academy North Div. C | C | 3 | 3 | MSO Regional Div C-02 Central Region | Prince Georges County Public Schools |
| Chesapeake Math and IT Academy South HS | B | 2 | 2 | MSO Regional Div B East/West | Prince George's County Public Schools |
| Chesapeake Science Point Charter Div. C | C | 1 | 1 | MSO Regional Div C-02 Central Region | Anne Arundel County Public Schools |
| Clarksburg High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Clarksville Middle School | B | 3 | 3 | MSO Regional Div B East/West | Howard County Public Schools |
| Clarksville MS- Invitational Team | B | 5 | 5 | _I am Unsure, Div. B (MD Directors will assign) | Howard County Public Schools |
| Colonel Zadok Magruder High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Connexions, A Community Arts School, Div C | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Crestwood MS | B | 1 | 1 | MSO Regional Div B East/West | Frederick County Public Schools |
| Damascus HS | C | 3 | 3 | MSO Regional Div C-01 Western Region | Montgomery County Public School |
| Digital Harbor High School | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Dulaney HS | C | 2 | 2 | MSO Regional Div C-03 Eastern Region | Baltimore County Public Schools |
| Edmondson-Westside High School | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public School System |
| Fallstaff ES/MS | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public School |
| Forest Park High School | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Franklin HS | C | 2 | 2 | MSO Regional Div C-03 Eastern Region | Baltimore County Public Schools |
| Frederick Classical Charter School | B | 1 | 1 | MSO Regional Div B East/West | Frederick County Public Schools |
| Frederick HS | C | 1 | 1 | MSO Regional Div C-01 Western Region | Frederick County Public Schools |
| Governor Thomas Johnson High School | C | 1 | 1 | MSO Regional Div C-01 Western Region | Frederick County Public Schools |
| Graceland Park ES/MS | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Green Street Academy | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City |
| Hallie Wells MS | B | 2 | 2 | MSO Regional Div B East/West | Montgomery County Public Schools |
| Hamilton Elementary Middle School | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Hampstead Hill Academy | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Hazelwood ES/MS | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Higher Achievement -Highlandtown #237 | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public School |
| Higher Achievement -Lakeland | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public School |
| Higher Achievement-Mount Royal | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public School |
| Highlandtown #215 Elementary/Middle | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Howard HS | C | 1 | 1 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| James M. Bennett HS | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Wicomico County Public Schools |
| John Carroll School | C | 2 | 2 | MSO Regional Div C-03 Eastern Region | Archdiocese of Baltimore |
| Kenmoor Middle School | B | 1 | 1 | MSO Regional Div B East/West | Prince Georges County |
| Kent County HS | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Kent County Public Schools |
| Kent County MS | B | 1 | 1 | MSO Regional Div B East/West | Kent County Public Schools |
| Lakeland ES/MS | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Lime Kiln Middle School | B | 3 | 3 | MSO Regional Div B East/West | Howard County Public Schools |
| Maree G. Farring | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Marriotts Ridge HS | C | 3 | 3 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| Mercy High School | C | 2 | 2 | MSO Regional Div C-03 Eastern Region | Independent |
| Mergenthaler Vocational Technical High School | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Monocacy Valley Montessori | B | 1 | 1 | MSO Regional Div B East/West | Frederick County Public Schools |
| Montgomery Blair High School | C | 1 | 1 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Mount View Middle School | B | 3 | 3 | MSO Regional Div B East/West | Howard County Public Schools |
| Mount View MS- Invitational Team | B | 3 | 3 | _I am Unsure, Div. B (MD Directors will assign) | Howard County |
| Mt. Hebron HS | C | 3 | 3 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| National Academy Foundation HS | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City |
| National Cathedral School Div. C | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Independent school |
| North Bethesda Middle School | B | 2 | 2 | MSO Regional Div B East/West | Montgomery County Public Schools |
| Northwest High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Oakland Mills HS | C | 1 | 1 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| Pilgrimage Homeschool Div. B | B | 1 | 1 | MSO Regional Div B East/West | Montgomery County |
| Pilgrimage Homeschool Div. C | C | 1 | 1 | MSO Regional Div C-01 Western Region | Montgomery County |
| Poolesville HS | C | 3 | 3 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Quince Orchard High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Reginald F Lewis HS | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City |
| Reservoir High School | C | 3 | 3 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| Richard Montgomery HS | C | 3 | 3 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Richard Montgomery HS - Invitational Team | C | 4 | 4 | _I am Unsure, Div. C (MD Directors will Assign) | MCPS |
| River Hill High School | C | 3 | 3 | MSO Regional Div C-02 Central Region | Howard County Public Schools |
| Roberto Clemente MS | B | 2 | 2 | MSO Regional Div B East/West | Montgomery |
| Roland Park ES/MS | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Saint John the Baptist | B | 1 | 1 | MSO Regional Div B East/West | Archdiocese of Washington Catholic Schools |
| Southwest Baltimore Community School | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| St. Francis of Assisi School | B | 1 | 1 | MSO Regional Div B Baltimore | Archdiocese of Baltimore |
| Stadium School | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public School |
| The Empowerment Academy | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City |
| Thomas S. Wootton HS | C | 3 | 3 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Tuscarora High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Frederick County Public Schools |
| Urbana HS | C | 2 | 2 | MSO Regional Div C-01 Western Region | Frederick County Public Schools |
| Urbana MS | B | 2 | 2 | MSO Regional Div B East/West | Frederick County Public Schools |
| Vivien T Thomas Medical Arts Academy | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City |
| Walter Johnson High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Western HS | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Baltimore City Public Schools |
| Westport Academy | B | 1 | 1 | MSO Regional Div B Baltimore | Baltimore City Public Schools |
| Wheaton High School | C | 1 | 1 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Winston Churchill High School | C | 2 | 2 | MSO Regional Div C-01 Western Region | Montgomery County Public Schools |
| Worcester Tech HS | C | 1 | 1 | MSO Regional Div C-03 Eastern Region | Worcester County Public School |