A look at the Invicta Fighting Championships, the world's largest all-female MMA organization.

Invicta Fighting Championships MMA features a bantamweight showdown between Katharina Lehner and Olga Rubin.

Invicta FC 47: Ducote vs. Zappitella.

Invicta FC 48: Tennant vs. Rubin.

Elisandra Ferreira takes on Ana Palacios for the atomweight title.