Newb - question about corral assignment

[MushuGrl]

Morning! I'm looking into doing a half in 2016. It will be my first half.

My questions to the runDisney vets - how does corral assignments work? Being as this is my first half, will I be stuck in the back as I won't have a time to turn in when I sign up? (Though by sign up time, I will have a 12K under my belt...)

[RunDMV]

you will submit an estimated finish time with your registration. you will be places in a corral according to this time. faster corrals (A,B and C) require proof of time.