Mark Green is hovering just shy of the 40 percent he needs to avoid a run-off, according to the latest USA Survey poll of likely voters, conducted from August 28 to September 1.
Bill de Blasio gained 4 points, and is now at 23 percent. Eric Gioia, who overtook Norman Siegel, gained 3 points and is at 14 percent. Siegel went from 11 percent to 10.
De Blasio and Gioia have done the most advertising. Green, who started with huge name recognition, has just started to advertise.
A poll two weeks ago had Green at a more comfortable 47 percent.