The 25-year-old Pole, ranked world No. 10 by the Association of Tennis Professionals (ATP), dispatched Russia's Daniil Medvedev 7-6, 6-3 in their men's singles quarterfinal on Thursday.
Hurkacz, who is defending his title in Miami, will now face Spaniard Carlos Alcaraz for a place in the final.
The 2022 Miami Open began on March 21 and runs until April 3.
(gs)
Source: IAR, PAP