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Douglas Ruben Holcomb
Black Belt
Douglas Ruben Holcomb is the head instructor at Gracie Barra Oceanside, a Brazilian Jiu-Jitsu academy in Oceanside, CA, USA. 2 competitors in the JiuJitsuGyms database list the academy as their team. This profile was built from the IBJJF academy directory, where Douglas Ruben Holcomb is registered as the academy's responsible instructor. Instructors can claim this profile to add a full bio and photo.
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