Grapple House BJJ Academy teach Brazilian Jiu Jitsu (Gi & No Gi) and Wrestling They operate under the lineage of 1st Degree Black Belt John Barlow then Manchester Predators 3rd degree Black Belt (Gavin Boardman) who in turn is under the respected lineage of Mitsuyo Maeda ＞ Carlos Gracie ＞ Carlson Gracie ＞ Ze Mario Sperry ＞ Rodrigo Antunes ＞ Gavin Boardman.