 Schilt lost twice in 2006 against Peter Aerts and Hong Man Choi but still made it to the finals after beating Bjorn Bregy by knockout.He defended his title after defeating Jerome Lebanner, Ernesto Hoost and Peter Aerts all by unanimous decisions.On 3 April 2007 he defeated Ray Sefo by second-round KO to become K-1's first Super Heavyweight Champion at K-1 World Grand Prix 2007 Yokohama.