[{"Performer":"O'Reilly Auto Parts 500","URL":"OReilly-Auto-Parts-500"},{"Performer":"O'Reilly Auto Parts Arenacross and Freestyle Championships","URL":"OReilly-Auto-Parts-Arenacross-and-Freestyle-Championships"},{"Performer":"Oakland Athletics","URL":"Oakland-Athletics"},{"Performer":"Oakland Raiders","URL":"Oakland-Raiders"},{"Performer":"Oakland University Golden Grizzlies","URL":"Oakland-University-Golden-Grizzlies"},{"Performer":"Oakland University Golden Grizzlies Baseball","URL":"Oakland-University-Golden-Grizzlies-Baseball"},{"Performer":"Oakland University Golden Grizzlies Basketball","URL":"Oakland-University-Golden-Grizzlies-Basketball"},{"Performer":"Oakland University Golden Grizzlies Women's Basketball","URL":"Oakland-University-Golden-Grizzlies-Womens-Basketball"},{"Performer":"Odessa Jackalopes","URL":"Odessa-Jackalopes"},{"Performer":"Ohio Bobcats","URL":"Ohio-Bobcats"},{"Performer":"Ohio Bobcats Basketball","URL":"Ohio-Bobcats-Basketball"},{"Performer":"Ohio Bobcats 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Wrestling","URL":"Ohio-State-Buckeyes-Wrestling"},{"Performer":"Oklahoma City Blue","URL":"Oklahoma-City-Blue"},{"Performer":"Oklahoma City Dodgers","URL":"Oklahoma-City-Dodgers"},{"Performer":"Oklahoma City Thunder","URL":"Oklahoma-City-Thunder"},{"Performer":"Oklahoma Sooners","URL":"Oklahoma-Sooners"},{"Performer":"Oklahoma Sooners Baseball","URL":"Oklahoma-Sooners-Baseball"},{"Performer":"Oklahoma Sooners Basketball","URL":"Oklahoma-Sooners-Basketball"},{"Performer":"Oklahoma Sooners Football","URL":"Oklahoma-Sooners-Football"},{"Performer":"Oklahoma Sooners Gymnastics","URL":"Oklahoma-Sooners-Gymnastics"},{"Performer":"Oklahoma Sooners Women's Basketball","URL":"Oklahoma-Sooners-Womens-Basketball"},{"Performer":"Oklahoma Sooners Wrestling","URL":"Oklahoma-Sooners-Wrestling"},{"Performer":"Oklahoma State Cowboys","URL":"Oklahoma-State-Cowboys"},{"Performer":"Oklahoma State Cowboys Baseball","URL":"Oklahoma-State-Cowboys-Baseball"},{"Performer":"Oklahoma State Cowboys Basketball","URL":"Oklahoma-State-Cowboys-Basketball"},{"Performer":"Oklahoma State Cowboys Football","URL":"Oklahoma-State-Cowboys-Football"},{"Performer":"Oklahoma State Cowboys Wrestling","URL":"Oklahoma-State-Cowboys-Wrestling"},{"Performer":"Oklahoma State Cowgirls","URL":"Oklahoma-State-Cowgirls"},{"Performer":"Oklahoma State Cowgirls Softball","URL":"Oklahoma-State-Cowgirls-Softball"},{"Performer":"Oklahoma State Cowgirls Women's Basketball","URL":"Oklahoma-State-Cowgirls-Womens-Basketball"},{"Performer":"Old Dominion Monarchs","URL":"Old-Dominion-Monarchs"},{"Performer":"Old Dominion Monarchs Baseball","URL":"Old-Dominion-Monarchs-Baseball"},{"Performer":"Old Dominion Monarchs Basketball","URL":"Old-Dominion-Monarchs-Basketball"},{"Performer":"Olympique de Marseille","URL":"Marseille"},{"Performer":"Omaha Beef","URL":"Omaha-Beef"},{"Performer":"Omaha Lancers","URL":"Omaha-Lancers"},{"Performer":"Omaha Storm Chasers","URL":"Omaha-Storm-Chasers"},{"Performer":"Ontario Fury","URL":"Ontario-Fury"},{"Performer":"Ontario Reign","URL":"Ontario-Reign"},{"Performer":"Oral Roberts Golden Eagles","URL":"Oral-Roberts-Golden-Eagles"},{"Performer":"Oral Roberts Golden Eagles Baseball","URL":"Oral-Roberts-Golden-Eagles-Baseball"},{"Performer":"Oral Roberts Golden Eagles Basketball","URL":"Oral-Roberts-Golden-Eagles-Basketball"},{"Performer":"Orange Bowl","URL":"Orange-Bowl"},{"Performer":"Oregon Ducks","URL":"Oregon-Ducks"},{"Performer":"Oregon Ducks Baseball","URL":"Oregon-Ducks-Baseball"},{"Performer":"Oregon Ducks Basketball","URL":"Oregon-Ducks-Basketball"},{"Performer":"Oregon Ducks Football","URL":"Oregon-Ducks-Football"},{"Performer":"Oregon Ducks Women's Basketball","URL":"Oregon-Ducks-Womens-Basketball"},{"Performer":"Oregon State Beavers","URL":"Oregon-State-Beavers"},{"Performer":"Oregon State Beavers Baseball","URL":"Oregon-State-Beavers-Baseball"},{"Performer":"Oregon State Beavers Basketball","URL":"Oregon-State-Beavers-Basketball"},{"Performer":"Oregon State Beavers Football","URL":"Oregon-State-Beavers-Football"},{"Performer":"Oregon State Beavers Gymnastics","URL":"Oregon-State-Beavers-Gymnastics"},{"Performer":"Oregon State Beavers Softball","URL":"Oregon-State-Beavers-Softball"},{"Performer":"Oregon State Beavers Women's Basketball","URL":"Oregon-State-Beavers-Womens-Basketball"},{"Performer":"Orlando City SC","URL":"Orlando-City-SC"},{"Performer":"Orlando Magic","URL":"Orlando-Magic"},{"Performer":"Orlando Solar Bears","URL":"Orlando-Solar-Bears"},{"Performer":"Oshawa Generals","URL":"Oshawa-Generals"},{"Performer":"Ottawa 67s","URL":"Ottawa-67s"},{"Performer":"Ottawa Champions","URL":"Ottawa-Champions"},{"Performer":"Ottawa RedBlacks","URL":"Ottawa-RedBlacks"},{"Performer":"Ottawa Senators","URL":"Ottawa-Senators"},{"Performer":"Outlaw Showdown","URL":"Outlaw-Showdown"},{"Performer":"Owen Sound Attack","URL":"Owen-Sound-Attack"},{"Performer":"Owensboro Colonels","URL":"Owensboro-Colonels"}]