The schematic, structured fields, and taxonomy for Ju-jitsu
The schematic is the diagram you tap to place pins during a match — the playing surface or position layout for Ju-jitsu. It's how spatial annotations get their position, and it's what per-opponent and cross-opponent heatmaps render onto.
Beyond free-form notes, each sport defines a few structured fields — handedness, stance, and similar — that the app can filter and aggregate on. For Ju-jitsu they're surfaced on the opponent profile; fill in what you know and leave the rest.
The questions we hear most, answered without hedging. If you don't find what you need, email help@opponentbook.app.
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