Hurkacz, the no. 13 seed, lost 4-6, 3-6 in the round of 16 on Wednesday.
Meanwhile, in the men's doubles in Dubai, Hurkacz has made it into the quarter-finals.
The Pole and his partner, Italy's Jannik Sinner, will take on Croatia's Ivan Dodig and Slovakia's Filip Polášek, who are the fourth seeds, for a place in the semi-finals.
(pk)
Source: IAR