Leon Larman is a French grappler and a black belt in jiu-jitsu under Julien Gaillard, who worked extensively with other instructors such as David Touzet, Julien Castanier, and Caio Terra while representing the Caio Terra Association in this sport's international circuit. Larman earned the reputation of being one of the top competitors in Europe through his consistent wins in the Old Continent, particularly with the International Brazilian Jiu-Jitsu Federation's league.