Leigh attended the fight but wasn't in a supervisory role and said he wasn't speaking in an official role. But in his opinion the fight, awarded to Parker by TKO, a result which extends the heavyweight's undefeated professional record to 21 victories, was clear-cut.
"He was bashed from pillar to post," Leigh said of the 2.01m Dimitrenko. "It wasn't a competitive fight. I think a controversy would be the other way. I think we were lucky to have a very competent and experienced professional, internationally, in there. A lesser referee might have been fooled.
"You can slow it down and ask did a punch land while he had a knee down, but in the heat of the moment he made the right decision. We were lucky to have Marlon there."
Wright, a Canadian, is a vastly experienced official, having refereed the recent Kell Brook v Gennedy Golovkin blockbuster in the United Kingdom.
"I back Marlon, the sole arbiter of the fight, and the way he called it," Leigh said.
Parker, the WBO and IBF No1, remains on track for a big-money world title fight with the victory screened to 53 countries around the world. He said immediately after the fight that he had trained for the grappling that Dimitrenko attempted and that he was unaware his opponent was on a knee when he hit him to the body with a powerful right hand for the last time.
When asked about the punch which finished the fight, trainer Kevin Barry: "Which one? Because I think he was finished when he [Parker] knocked him down in the first round. For me it was the end of the fight and it was just a matter of matter of time."