Perfect" based out of Vos Gym. Away from K-1, he defeated Scott Lighty in another rematch at Shin Do Kumate XI in Tampa, Florida on December 8, 2006. After hurting Lighty with low kicks throughout the first two rounds, Barry scored a high kick knockdown at the beginning of the third before finishing him off with another high kick shortly after. He then returned to K-1 to compete in the eight-man tournament at the K-1 World Grand Prix 2007 in Hawaii on April 4, 2007. He was initially set to face Jan Nortje in the quarter-finals but his opponent was then changed to Gary Goodridge. Barry twice sent Goodridge to the canvas with low kicks in the early going, the first ruled a slip, the second a legitimate down. He then landed a left high kick on the Trinidadian brawler and, although it did not knock him down, it opened a large cut which caused the ringside physician to call a halt to the bout and send Barry through to the semis where he had his rubber match with Aleksandr Pitchkounov. He was floored with a mawashi geri in round two and received a count from the referee in three after being injured when the Russian checked one of his low kicks, losing by unanimous decision. Barry took part in his second K-1 tournament at the K-1 World Grand Prix 2007 in Las Vegas on August 11, 2007. Drawn against Rickard Nordstrand in the quarter-finals, Barry scored a knockdown with a high kick inside the first twenty seconds before stopping the Swede with his patented low kicks in round two. He then went up against Zabit Samedov in the semifinals and lost via split decision after a back-and-forth fight. In his final K-1 appearance, Barry lost to Freddy Kemayo via technical knockout due to a broken nose caused by a knee strike in the opening round of their contest at K-1 Fighting Network Prague 2007 on December 15, 2007. World Combat League and transition to mixed martial arts (2008) In 2008, Barry left Team Mr. Perfect and returned to Duke Roufus at Roufusport after a fallout with Ernesto Hoost, as he felt that the Dutch legend neglected him as a trainer and showed little faith in him. In an interview with Fight! magazine in 2009, Barry stated: Hoost denied Barry's claims in a 2014 interview, saying that he gave Barry