Malden Catholic Lancers – Boys Mansfield Hornets – Boys Marblehead Magicians – Boys Marblehead Magicians – Girls Marian-Keefe Tech Mustangs – Boys Marlboro Panthers – Boys Marshfield Rams – Girls Marshfield Rams – Boys Martha's Vineyard Vineyarders – Girls Martha's Vineyard Vineyarders – Boys Masconomet Chieftains – Girls Masconomet Chieftains – Boys Mashpee/Monomoy Monarchs – Boys Matignon Warriors – Girls Medfield Warriors – Girls Medfield Warriors – Boys Medford Mustangs – Boys Medford/Malden Mustangs – Girls Medway Mustangs – Boys Medway/Ashland Mustangs – Girls Melrose Red Hawks – Girls Melrose Red Hawks – Boys Methuen Rangers – Boys Middleboro Sachems – Boys Milton Wildcats – Girls Milton Wildcats – Boys Minnechaug Falcons – Boys Minuteman Mustangs – Boys MOA Warriors – Girls Mount Everett Eagles – Boys
