In the quarterfinal, Grujic defeated Ioannis Motsakos 4:6, 6:4, 10:7.
According to api.tennis, Grujic was seeded 12th, while Motsakos was seeded fourth.
Aleksandar Grujic beats Ioannis Motsakos in J100 Aridea quarterfinal
Aleksandar Grujic has reached the semifinal of the J100 junior tournament.