Mayko Araújo is a Brazilian jiu jitsu black belt under Leonardo Vieira, being also one of the top representatives of the Checkmat team in the United States. A medallist in tournaments such as the IBJJF World No-Gi and Pan American No-Gi Championship, Mayko has also worked as an instructor at the Checkmat Headquarters in California, USA later going on to become the co-founder of the team's main affiliation in Idaho together with his wife Karen Antunes.