We run weekly tournaments for different tiers but there is no way of blocking players from playing too low a level.
We have it happen monthly despite clear labeling and regular emails. As each member joins the club they are also informed.
We have been asking for this for some time.
I feel its the single most important improvement a CC needs.
My CC (Carolina Sandhills) just posts the name of a specified tournament and players respect it.
We do to but there is always the random mistake.