Sandbagging is a term used in martial arts to denote a practitioner who competes at a skill-bracket deemed less rigorous than their actual level of competitive ability.[1][2] The term is adopted similarly in golf and various forms of racing. In contrast to these sports however, it remains unclear whether the grappling "sandbagger" necessarily does so intentionally.[3] For example, in Judo or Brazilian Jiu-Jitsu, where competition is generally divided by belt rank, a practitioner is conventionally not allowed to choose his or her own ranking and thus must compete at a level predetermined by his or her instructor.[4]