After studying to be an electrician, Kenny Hallaert discovered poker somewhat by chance, when he came across a banner for a poker site following a bet on FC Brugge. He started playing a lot, especially online and in Belgium, and soon became a tournament organizer in Namur and SPA alongside Bernard de Breyne.

In parallel with his activities, he played more and more and accumulated good results online, before landing his first big final table, at the EPT Deauville 2011, where he finished 6th in an event won by Lucien Cohen, taking home €155,000. 

C’est surtout en 2016 qu’il atteint le graal, à savoir la table finale du Main Event des WSOP, devenant le deuxième belge de l’histoire à réussir cet exploit, tout juste un an après la 7ème place de Pierre Neuville. Kenny terminera finalement 6ème de l’épreuve pour 1,4 millions.

Kenny réedite l'exploit d'atteindre la table finale du Main Event WSOP en Juillet 2025, où il améliore son meilleur résultat en finisant 4ème pou 3 millions, son plus gros résultat à ce jour sur le circuit live. 

Other big results include 10th place in the $111,111 High-Roller for One Drop for $295,131 and 3rd place in the WSOP $5,000 Short-Handed for $238,855.

3rd on the Belgian All-Time Money List behind Davidi Kitai and Pierre Neuville, Kenny Hallaert has also excelled online for many years under the alias "SpaceyFCB", where he has won three SCOOP titles.