Georgia has two types of runoffs, one for strictly party primaries and one for general elections. In the former, a person who voted in the Democrat primary for example, cannot come vote in the Republican runoff or visa versa. Normally these runoffs are close enough to the original election so as not to have time for additional registrations. For a general election runoff, any registered voter can vote and in this case, the runoff election is far enough out to have allowed for additional voter registrations. We did have a state legislative race runoff December 1 that did not allow for additional registrations. Why the Senate runoffs were not that same day is a mystery to me.
Ahhh. Thanks for the clarification!!!
Hoss