• UFC 322(11/15/25) Della Maddalena lost a five round unanimous decision to Islam Makhachev, losing the UFC welterweight title
• UFC 315(5/10/25) Della Maddalena won a five round unanimous decision over Belal Muhammad to win the UFC welterweight title
• UFC 299(3/9/24) Della Maddalena knocked out Gilbert Burns at 3:43 of the third round
• Noche UFC(9/16/23) Della Maddalena won a three round split decision over Kevin Holland
• UFC on ESPN(7/15/23) Della Maddalena won a three round split decision over Bassil Hafez
• UFC 284(2/11/23) Della Maddalena submitted Randy Brown via rear naked choke at 2:13 of the first round
• UFC Fight Night(11/19/22) Della Maddalena stopped Danny Roberts via strikes at 3:24 of the first round
• UFC 275(6/12/22) Della Maddalena stopped Ramazan Emeev via strikes at 2:32 of the first round
• UFC 270(1/22/22) Della Maddalena stopped Pete Rodriguez via strikes at 2:59 of the first round
• Dana White's Contender Series, Season 5
• Episode three(9/14/21) Della Maddalena won a three round unanimous decision over Ange Loosa