The way I understand it from our coaches, there are pre sectionals and sectionals (I think!) And I think you need a certain score at a pre sectional to qualify for the sectional and then a certain score at sectional to qualify for states.
And, I think I also understand (again, may be wrong!) that there are actually a few meets during the season that count as sectionals (something about if it is at an outside facility not in a home gym??) So, you might be competing at a sectional and not really know it (it's not advertised that way)
There was a level 5/6 sectional today and I know my friend's daughter (from another gym) was the only girl from her gym competing because she needed to go to qualify for States. However no one from my daughter's gym went to the sectional because they have all already qualified at some other (unknown!) sectional.
Hope this makes sense, as it only makes vague sense to me!