Slammiversary saw Xia Brookside pin Léi Yǐng Lee with her Darkside finisher to capture the TNA Knockouts World Championship, her first title in the promotion.
Brookside turned the match by driving Lee into the ring post and targeting her left knee after Lee controlled the early action with kicks, a German suplex and a diving shoulder block.
The finish came after Brookside exposed the turnbuckle, knocked Lee from the top rope into it face-first, then followed with the winning pin.
The title change caps a feud between former friends that intensified after Lee won the belt, with Brookside's envy driving the rivalry into Sunday's championship match.