Right now Chambliss is showing 50.2% so it may be academic. Even so, without the draw of the presidential election the runoff shouldn’t attract a fraction of the voters that turned out yesterday. Chambliss should win that handily.
Where are you seeing >50%? I can’t find anything other than the SOS site.
The official numbers show 49.9% now. Go Saxby (and bring on the lawyers...).