| Madisonville North Hopkins HS | - | Varsity | Medium | 0 | | |
| Magnolia High School | - | Varsity | Large | 0 | | |
| Magnolia High School | - | Varsity | - | 0 | | |
| Magnolia High School | - | Varsity | Large | 0 | | |
| Magnolia High School | - | Varsity | Large | 0 | | |
| Maine-Endwell High School | - | Varsity | Small | 0 | | |
| Mainland High School | - | Varsity | Large | 0 | | |
| Manalapan High School | - | Varsity | Large | 0 | | |
| Manalapan High School | - | Varsity | Large | 0 | | |
| Manalapan High School | - | Junior | - | 0 | | |
| Manalapan High School | - | Varsity | Medium | 0 | | |
| Manatee High School | - | Varsity | - | 0 | | |
| Manatee High School | - | Varsity | Small | 0 | | |
| Manchester Township High School | - | Varsity | Small | 0 | | |
| Manchester Township High School | - | Varsity | Medium | 0 | | |
| Manchester Township High School | - | Varsity | Small | 0 | | |
| Manchester Township High School | - | Varsity | Small | 0 | | |
| Manchester Township High School | - | Varsity | Small | 0 | | |
| Manchester Township High School | - | Varsity | Small | 0 | | |
| Mancos High School | - | Varsity | - | 0 | | |
| Mandeville High School | - | Varsity | Medium | 0 | | |
| Mandeville High School | - | Varsity | Medium | 0 | | |
| Mandeville High School | - | Varsity | - | 0 | | |
| Mandeville High School | - | Varsity | - | 0 | | |
| Mandeville High School | - | Varsity | Medium | 0 | | |
| Mandeville High School | - | Varsity | - | 0 | | |
| Mandeville High School | - | Varsity | Small | 0 | | |
| Mandeville High School | - | Varsity | Small | 0 | | |
| Mandeville High School | - | Varsity | - | 0 | | |
| Manhattan High School | - | Varsity | - | 0 | | |
| Mansfield High School | - | Varsity | Large | 0 | | |
| Mansfield High School | - | Varsity | Large | 0 | | |
| Mansfield High School | - | Varsity | - | 0 | | |
| Mantachie High School | - | Varsity | Medium | 0 | | |
| Mantachie High School | - | Varsity | Medium | 0 | | |
| Manvel High School | - | Varsity | Large | 0 | | |
| Manvel High School | - | Varsity | - | 0 | | |
| Manvel High School | - | Varsity | - | 0 | | |
| Maple Grove High School | - | Varsity | Small | 0 | | |
| Maple Grove Senior High | - | Varsity | Large | 0 | | |
| Maple Grove Senior High | - | Varsity | Medium | 0 | | |
| Maple Grove Senior High | - | Varsity | Medium | 0 | | |
| Maple Mountain High School | - | Varsity | - | 0 | | |
| Maple Mountain High School | - | Varsity | Large | 0 | | |
| Maple Mountain High School | - | - | - | 0 | | |
| Maple Shade High School | - | Varsity | Small | 0 | | |
| Maple Shade High School | - | Varsity | Small | 0 | | |
| Maple Shade High School | - | Varsity | Small | 0 | | |
| Maple Shade High School | - | Varsity | - | 0 | | |
| Marana High School | - | Varsity | Small | 0 | | |