20. grade of 20
10th Dan – Judan (Master Grandmaster)
Typical gap since previous grade: 240 monthsestimate
Master rank 10th Dan – Judan (Master Grandmaster) in Genbukan Ninpo Bugei tradition.
Requirements for this grade
We do not yet have documented requirements for this grade. They will be added once the relevant organisation’s syllabus is available.
Official master Dan rank hierarchy in Genbukan.