hmmm anyone? :(
Here's a doubt

If your rating exceeds the bounds of your current pool, you will be placed in the correct pool come time for the tournament.

You are allowed to rejoin it, Withdrawing from a tournament will not ban you from joining it again.
You can do what khpa21 said and stay in the tournament until the last day, where you will be switched in your rating group, so if you hit 160+ you will be in a 1600-1800 tournament, but if you do not want to be a 1600 playing all these ratings, i would advise you to withdraw
Hi guys, the fact is that i just joined a Chess.com Tournament, one of those quick tournaments (from 1401-1600) my rating is around 1500+ now but from now on until October 1st it can change, maybe up top 1600+ or -1400 i dont know, because im new and you now, my rating has a high variable right now. so my question is, can i withdraw the tournament without a problem and rejoin one of these tournaments let's say, on September 29th?... Perhaps it could be the same tournament.