Lachlan Giles is an Australian grappler and black belt in Brazilian jiu-jitsu black belt under John Simon, having also worked extensively with Tyrone Crosse as well as Thiago Stefanutti. Known as one of the top Aussie competitors of his generation - a reputation earned through podium placements in prestigious tournaments which include the IBJJF World No-Gi Championship, Pan Pacific Championship, Boa Super 8 and Eddie Bravo Invitational, Lachlan Giles is also revered for his work as a grappling coach, aiding athletes such as Livia Gluchowska and Craig Jones.