THE RANK JOURNAL / TAG

Gi jiu-jitsu.

1 field note to help you understand the sport with more precision.

Read with a clear question.

Study the purpose of grips and the decisions between positions. Start with the gi guide below, then use the linked training resources to develop a small supervised learning project around your own questions.

Start with the field note closest to the question you are trying to answer. Each article includes a primary-source reference where formal rules or competitive records matter, alongside clearly framed editorial guidance. Use the linked topic pages for wider context instead of treating a single article as a universal rulebook.