American mixed martial arts league founded in 2017 by Donn Davis and launched in 2018, known for its regular-season, playoff, and championship format.
American mixed martial arts league founded in 2017 by Donn Davis and launched in 2018, known for its regular-season, playoff, and championship format.

Omran Chaaban
Osama El Saidy
Oscar Rizzo

Osvaldo Benedito

Otto Rodrigues

Oualid Gounaine

Oualy Tandia

Oussama El Idrissi
Oussama El Idrissi

Owen Carr
Ozzie Alvarez
Ozzy Dugulubgov
World Series of Fighting 8: Gaethje vs. Patishnock
Hollywood, United States
World Series of Fighting 2: Central America
Managua, Nicaragua
World Series of Fighting 7: Karakhanyan vs. Palmer
Vancouver, Canada
World Series of Fighting 6: Burkman vs. Carl
Coral Gables, United States
World Series of Fighting 5: Arlovski vs. Kyle
Atlantic City, US