My Predictions:

Group A - Riverside, Fort Mill, Kelly Walsh, Brookland-Cayce
Group B - Dutch Fork, Norman North, Wando, Daniel
Group C - Spring Valley, Farragut, Dorman, Airport
Group D - Northwestern, Christian Brothers, Lexington, Pinewood Prep

I personally don't see Norman North and Wando beating DF. I also think Norman North will beat Wando in a very close game. The finals i think will end up being Dutch Fork and Northwestern.