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Gi and No-Gi define the training focus listed for Backbone Jiu Jitsu in Corona, California, USA. Gi refers to a traditional uniform-based grappling format, while No-Gi identifies a related format practiced without that uniform, making the two labels a useful broad introduction to the range of jiu-jitsu competition contexts. A beginner can understand the pairing as an opportunity to encounter grappling concepts through both clothing-based and non-clothing-based situations, without assuming any particular method or format beyond the stated focus. A competitor can recognize Gi and No-Gi as separate settings that share positional and submission-oriented grappling foundations while differing in the role of attire. Backbone Jiu Jitsu is thus specifically categorized around these two jiu-jitsu disciplines in Corona. The California location remains an integral part of the record's martial-arts identification.
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