Oak Park (MI)(5-15)
Oakland Activities Association - Red
Oakridge (MI)(14-8)
West Michigan Conference
Ogemaw Heights (MI)(12-8)
Big North Conference, Independent
#60Okemos (MI)(19-5)
Capital Area Activities Conference - Blue
#46Old Redford (MI)(21-8)
Charter School Conference - West
Olivet (MI)(14-7)
Greater Lansing Activities Conference
Onaway (MI)(17-5)
Ski-Valley Conference
Onekama (MI)(9-11)
Northwest Conference
#75Onsted (MI)(20-5)
Lenawee County Athletic Association
Ontonagon (MI)(3-15)
Copper Country Conference
#1Orchard Lake St Mary's (MI)(27-1)
Catholic League - Central
Orchard View (MI)(5-15)
Lakes Eight Conference
Ortonville Brandon (MI)(4-16)
Flint Metro League
Oscoda (MI)(15-7)
North Star League
Otsego (MI)(16-6)
Wolverine "B" Conference
Ottawa Lake Whiteford (MI)(13-7)
Tri-County Conference
Ovid-Elsie (MI)(12-10)
Tri-Valley Conference - West
Owendale-Gagetown (MI)(0-14)
Michigan Summit League
Owosso (MI)(2-16)
Flint Metro League
Oxford (MI)(14-9)
Oakland Activities Association - Blue