Career
Brecht Wallis started training in judo at the age of 12 and a few years later moved on to Muay Thai. In 2001 he moved to the Netherlands to pursue his professional career at the Siam Gym under trainer Miki Benazzouz. He made his K-1 debut in 2003 at K-1 Holland General Practice in Zoetermeer, winning the bout against Swedish fighter Jorgen Kruth by extra round majority decision.
After few years out of the K-1 fighting circuit Brecht Wallis made his comeback on 4 May 2007 at the K-1 Fighting Network General Practice 2007 in Romania, winning the tournament over Doug Viney, Errol Zimmerman and Paula Mataele and he qualified for K-1 World General Practice 2007 in Amsterdam.
He defeated Martinis Knyzelis via decision at K-1 World Grand Prix 2013 in Vilnius in Vilnius, Lithuania on 27 April 2013.
