Yoga Ability Levels as observed at Ashtanga Yoga Bellingham

Level 1-  All levels 

Level 2-Some experience is helpful.  Physically demanding.  Stamina required. 

Level 3-Experienced ashtanga yoga practitioners with excellent stamina and physical ability.

Level 4-Advanced practitioners with ability to progress beyond the primary series

Level 5-Advanced practitioners and teachers with abilities up through the majority of the second series