Amanda Serrano won a unanimous decision to unify the IBF belt with the WBO and WBC featherweight titles she already held.
She beat Sarah Mahfoud for all three judges, winning twice 99-92 and 97-93, on the Joe Joyce v Joseph Parker undercard at Manchester Arena.
Serrano changed weight classes during his stellar career. After losing a thrilling matchup with undisputed lightweight champion Katie Taylor earlier this year, she returned to featherweight for this fight to put her WBC and WBO featherweight titles on the line against IBF champion Mahfoud.
Serrano started with intensity, looking to take down Mahfoud and charge in with heavy punches to the body.
Serrano’s left left looked damaging and Mahfoud had to get up on the balls of his feet and cycle to his left to try and stay clear.
His jabs only pawed and couldn’t deter Serrano’s advance. Serrano dug in solid shots and increased his aggression. To compound Mahfoud’s problems, a clash of heads opened up a cut.
Serrano took the early rounds as she targeted the body with punches. During the first half of the fight, it looked like she would be able to crush the IBF champion.
But Mahfoud showed heart. She found moments to spring up and throw combinations. His punches didn’t carry the same type of threat as Serrano’s, but broke up the Puerto Rican’s onslaught and helped Mahfoud get to the final bell.
Serrano was a clear unanimous winner, however.
Serrano now wants the fourth and final world featherweight title, the WBA belt held by Erika Cruz.
“I want the last piece of the puzzle to go unchallenged,” Serrano said afterwards. “Then the rematch with Katie Taylor.
“What better story than undisputed versus undisputed? It will add to both of our legacies.”