Kentucky Derby winner Golden Tempo crossed the finish line first at the Belmont Stakes.
New York Racing Association also plans to allow fans into Belmont's in-field for future races.
Organizers expect the venue will host more than 150 major events annually "while delivering an unmatched live entertainment experience including clear sightlines and premier acoustics."
Officials will use the event to try to promote vaccinations as well.
A new pop-up vaccination site opened Friday at Belmont Park, as Long Island prepares to welcome back fans for the Belmont Stakes, the third and final leg of the Triple Crown.
Trainer Bob Baffert has been banned from entering Medina Spirit, the Kentucky Derby winner, in the Belmont Stakes.