The list of opponents on Joseph Parker’s 39-fight professional record is one of the most impressive among active heavyweights.

The durable New Zealander has lost just once since former unified champ Anthony Joshua and Dillian Whyte beat him in back-to-back bouts in 2018. Joe Joyce, who was undefeated when they fought in September 2022, is the only opponent to beat Parker in the past seven years.

The rejuvenated Parker has beaten some of their division’s most dangerous punchers in his past three fights – Deontay Wilder, Zhilei Zhang and Martin Bakole – to earn his way back into title contention. Zhang knocked out Joyce twice before Parker beat the huge Chinese southpaw in March 2024.

Parker, 33, also owns victories over former unified champ Andy Ruiz Jr., Derek Chisora, whom he out-pointed twice just after Chisora gave Oleksandr Usyk one of his toughest fights, and Carlos Takam when the Cameroonian veteran was in his physical prime.

The WBO interim champion’s resume is one of the primary reasons Parker (34-3, 23 KOs) is certain he’ll defeat Fabio Wardley (19-0-1, 18 KOs) on Saturday night at O2 Arena in London. Parker explained to The Ring’s Max Kellerman during the newest episode of “Inside The Ring” why experience separates them as they move toward a significant fight Usyk stated recently will determine his next opponent.

“I know that Fabio Wardley is a lot more inexperienced than I am,” Parker said. “But I do believe that the team he has behind him will make good adjustments and the way he’s approached this fight and obviously the game plan. But I do feel with this experience that I have, being a world champion and fighting in front of many, you know, big crowds, but also fighting top contenders, I do feel that the experience that I have will be too much for him. That’s what I feel.”

Wardley was way behind on all three scorecards when he blasted Australia’s Justis Huni with a picture-perfect right hand that emphatically ended their fight in the 10th round June 7 at Portman Road, a soccer stadium in Wardley’s hometown of Ipswich, England.

Parker is undoubtedly the most proven opponent of Wardley’s career, yet the former WBO champion isn’t underestimating a green but dangerous contender whose last three wins were recorded against previously undefeated foes in Huni and British rivals Frazer Clarke and David Adeleye.

“You know, you can only take him for the fights that he’s had,” Parker said. “And every fight that he’s had, he’s come out on top, you know? And even though the last time up, he looked touchy on his last fight with Justis Huni, where he was down on the cards and he pulled out a big right hand. So, he does carry his power with him throughout the whole fight, from round one to round 12. In that case, it was round 10.

“And I guess with each fight he’s had, he’s improved and getting better and better. So, I’ve been in the ring with many top fighters and I’ve been in the ring with a lot of power punchers. And I do feel that my level is above Fabio Wardley, but we’ll see. Time will tell.”

Parker, No. 2 among The Ring’s top 10 contenders, is a 4-1 favorite versus the sixth-ranked Wardley, according to DraftKings. Their 12-rounder will headline a DAZN Pay-Per-View show in the UK (£24.99) and the United States ($59.99).