At the end of 2021, Jack Della Maddalena was signed an official contract with UFC thanks to the good performance at the selection of fighter Dana White's Contender Series 39. Della Maddalena was good, and was lucky when the chance of stretching unexpectedly came to him.
Initially, UFC ranked Belal Muhammad to protect the Welterweight UFC championship at the end of 2024. The original opponent Muhammad should have played as Shavkat Rakhmonov. However, Muhammad was suddenly sick and had to be hospitalized at the time, causing this match to step back compared to the scheduled calendar.
By the beginning of this year, UFC, restarting the belt protection plan of Belal Muhammad and Shavkat Rakhmonov. But at this point, Rakhmonov was injured and could not practice preparing for the match. Therefore, Jack Della Maddalena was tried to fight the champion.
Entering the match against Belal Muhammad in UFC 315, Jack Della Maddalena started relatively well. He played balance against the champion in the first half, but gradually overwhelmed in the next half. Belal Muhammad regained the game in the fourth half, but he left the opponent somewhat better in the 5th half decision.
At the end of 5 rounds, all 3 assessments scored Jack Della Maddalena to win Belal Muhammad (48-47, 48-47, 49-46). This victory helped Della Maddalena officially become the new UFC king, while extending the impressive victory. This boxer has lost the first 2 matches, but now has 20 consecutive victories, including 8 matches at UFC.