The same year he was selected to represent France at the amateur world Muaythai championships in Bangkok, Thailand, reaching the semi-finals and claiming a bronze medal.

In order to seek greater challenges, Gregory started to compete outside France where his growing reputation got him a world title shot against Vincent Vielvoye in 2006.

He was also selected as a contestant for the It's Showtime Reality Show, reaching the semi-final stage only to lose to Brazilian Muay Thai supremo Cosmo Alexandre via a devastating knee KO after an extra round in what was an exciting fight.

Choplin was unable to gain revenge for his earlier loss in his failed bid for the title in Budapest, losing a hard five round contest.

[17] He was scheduled to fight Duochonlek at the WBC World Muay Thai Millennium Championship in Saint-Pierre, Réunion on September 7, 2013[18] but the card fell through.

[20][21] He faced Hichem Menaouine at Golden fight 3 in La Courneuve on June 6, 2015, for the W.M.C (World Muaythai Council) title and won via decision.