The 25-year-old Pole, ranked world No. 10 by the Association of Tennis Professionals (ATP), dispatched South African Lloyd Harris 7-6, 6-2 in the round of 16.
Up next for Hurkacz in the men's singles competition at the tournament is Daniil Medvedev of Russia.
In the women's singles, Poland’s Iga Świątek has advanced to the Miami Open quarterfinals, with a 6-3, 6-1 win over American player Cori Gauff on Monday.
The 2022 Miami Open began on March 21 and runs until April 3.
(gs)
Source: IAR, PAP