If the remaining Prince William precincts are similar to the ones already counted, Webb will tighten it a bit more (to ~4000 votes), but will not overtake Allen.
In any case, it's a nail-biter. Recount will take weeks...
Well now Webb is ahead and all that is left are dems. Allen might be able to ask for recount.
Loudoun Co went for Webb. That's not good.