Only the best facilities in the country are allowed to participate in the National Ninja League. In order to host events, facilities must pass a 5 step inspection.

​An experienced team of event coordinators review every gym and rates them in the areas below. Gyms must pass a minimum score in all 5 areas to become eligible for National Ninja League competitions.

1. Equipment Structure and Maintenance
2. Obstacle Variety
3. Event History
4. Safety and Padding
​5. Overall Professionalism