The match, held at the Stadium Lotto Park in Brussels, ended with a 6–0 victory for the hosts.
After five matches in the 2026 World Cup qualification, Kazakhstan have three points.
Their next fixture will be at home against Liechtenstein on October 10.
Belgium 6–0 (2–0) Kazakhstan
Goals: De Bruyne 42, 84, Doku 44, 60, Raskin 51, Meunier 87.
Yellow cards: Kassym 20, Muzhikov 66.
Belgium: Courtois (GK), Castagne, Debast, Theate, De Cuyper, Tielemans (C), Raskin, Trossard, De Bruyne, Doku, De Ketelaere.
Substitutes: Vandevoordt (GK), Sels (GK), Maehle, Openda, Fofana, Meunier, De Winter, Vanut, Moreira, Vanaken, Saelemaekers, Batshuayi.
Head coach: Rudi Garcia.
Kazakhstan: Seisen (GK), Astanov, Kasym, Zhaksybayev, Alip (C), Vorogovskiy, Muzhikov, Orazov, Kenzhebek, Samorodov, Omirtayev.
Substitutes: Anarbekov (GK), Shaizada (GK), Kairov, Chesnokov, Tyulyubay, Zhagorov, Khalmatov, Karaman, Satpayev, Zhumat.
Head coach: Ali Aliyev.
Referees: Radu Petrescu, Radu Gingelach, Mircea Grigoriu, Andrei Chivulete (all Romania).
September 7, 2025, 23:45. Lotto Park, Brussels.