Jack della Maddalena became the newest man who held the 170 pounds of gold after achieving the upset gain on 10 May.
The rising good weight was considered one of the dark horses of the division by many, but that label no longer applies after UFC 315.
Della Maddalena defeated Belal Muhammad in the main event to improve his UFC -winning series to eight with the best performance of his career to date.
The approach of Muhammad was questioned after the defending champion was not very successful in implementing his grasp game in which many believed he would have the benefit.
With Della Maddalena who focuses on Islam Makhachev, the new title holder has now inserted his name in the Pond-Voor-Pond ranks of the UFC for the first time.
Photo by Chris Unger/Zuffa LLC
Jack della Maddalena is higher than Alexandre Pantoja and Tom Aspinall in pound-for-pound ranks
Jack della Maddalena entered the pound-for-pound rankings of the UFC for the first time with his victory over UFC 315 and saw him climb all the way to the #9 place.
The Aussie announced his arrival in the promotion with four consecutive first round finish before he got his hand in back-to-back-split decisions.
The victory of Della Maddalena over Gilbert Burns at UFC 299 confirmed him as a title candidate, but it raised some questions after he had gathered to secure a victory of the coming behind.
He was able to answer many of those doubts with his performance at the Bell Center in Montreal, where 'JDM' Belal Muhammad decreases in his first defending defense.
Coming on #9 means that the new Weltergege champion has overtaken various remarkable names in the list, including two UFC champions and one BMF.
Della Maddalena is now above flying weight champion Alexandre Pantoja, Interim heavyweight title holder Tom Aspinall, Max Holloway, Muhammad, Sean O'Malley and Charles Oliveira.
Arman Tsarukyan has fallen from the top 15 with the teammate of the new champion, Alexander Volkanovski, who goes up two places.
Many fans specifically referred to Della Maddalena who caught up Pantoja in their reactions, whereby the flight weight champion successfully defends his title three times since July 2020.
Daniel Cormier recently mentioned Pantoja and della Maddalena, on his list of the top five of the most undervalued hunters on the Roster.
New welterweight champion Jack della Maddalena has a major impact on the last official pound-for-pound list, debuting at no. 9 NE #UFC315.
Former champion Belal Muhammad is now no. 1 candidate at 170 pounds and drops six places to No. 13 on the P4P list.
Arman Tsarukyan leaves list. pic.twitter.com/pxcg5ARKWQ
– John Morgan (@Johnmorgan_Mma) May 13, 2025
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More UFC 315 Rankings -updates See Jose Aldo leave with a new number one competition in flight weight
The controversial victory of Aiemann Zahabi on Jose Aldo has seen the in-form-avoiding four places climb to the #11 ranking order in the Bantam weight division, while his legendary opponent left the top 15 after his retirement.
Most movement came in the women's fly division where Valentina defeated Shevchenko Manon Fiorot to stay at the very top.
There were two other large versions of contenders on 125 pounds on 10 May with Natalia Silva and Jasmine Jasudavicius who deserved victories on former champions.
Silva is now arranged as the #1 competition in the division with Jasudavicius who climbs three places to #6.