Well, I guess I could be wrong here if there is something I'm missing but these are the teams I THINK are guaranteed in.
Group A: Riverside--uh, they beat everyone in their group.
Group B: Summerville/Spring Valley--I think it comes down to whoever wins this one will win the group.
Group C: Hilton Head--they beat everyone.
Group D: Norman North (OK)--beat everyone, pretty much dominated all but one.
It's Group C vs. D (should be a pretty good game IMO)
And of course the two remaining groups A and B. Have to pull for Riverside there. This has been a pretty interesting tourny though to say the least!