The thirteenth episode of Season 15, and the three hundred and fifty-seventh episode of America's Got Talent overall, was aired on August 25, 2020. It was the third of four Quarterfinals performance episodes and took place at Universal Studios Hollywood. 11 acts performed for 5 spots in the Semifinals.
Due to continuing to recover from injury, Simon Cowell was not present. Unlike the previous two performance episodes, there was no guest judge to replace him.