Commissioners have said Wynn has until May 31 to pay the fines. But regulators assessed a $35 million fine on the Las Vegas-based gambling empire and a $500,000 fine on Maddox. (Nasdaq: WYNN) is suitable to hold a casino license in Massachusetts. Maddox’s comments were in response to last week’s Gaming Commission decision, which found that the Wynn Resorts Ltd. “We may give ourself another week, we may not. And so now we’re doubling back,” Maddox said. And clearly the regulatory complexity we’ve been through has been a challenge. “I don’t know if the opening date will be June 23 or a week or two later, because we’re going to make sure that it’s flawless. could push back the planned June 23 opening of its Encore Boston Harbor casino in Everett to make sure the property is “flawless,” CEO Matthew Maddox said during the company’s first-quarter earnings call Thursday afternoon. Wynn Resorts could push back Encore Boston Harbor opening, CEO says