"3-Name Jack"
Organization
UFCNationality
Australia
Birth
10/09/1996 (30)
Birthplace
Perth
Australia
Sport / Status
MMA · Active
Weight class
Welterweight
Height
180 cm (5'11")
Reach
185 cm (73")
Style
MMA
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 5 May 2026, he is #4 in the UFC welterweight rankings.
10 total fights · 50% KO rate
