Jack Della Maddalena

Giacomo "Jack" Della Maddalena, also known by his initials JDM, is an Australian professional mixed martial artist. He currently competes in the Welterweight division of the Ultimate Fighting Championship (UFC), where he is the former UFC Welterweight Champion. As of 18 November 2025, he is #1 in the UFC welterweight rankings.

Jack Della Maddalena has compiled a professional record of 18-3-0 across 21 bouts. With 12 victories coming by stoppage, Maddalena carries a 67% knockout rate, demonstrating solid finishing ability.

Representing Australia on the world stage, Maddalena competes in the Welterweight division. They remain active and looking for their next fight.