What is a black red belt in karate?

There are tens of thousands of individuals that have earned black belts in karate in the last ten years.

There are ten ranks of black belt, first through tenth

1. Shodan
2. Nidan
3. Sandan
4. Yodan
5. Godan
6. Rokodan
7. Nanodan
8. Hachidan
9. Kudan
10. Judan