Youth get a grip. They had Saxy Chambliss a huge underdog in GA.
"Dem Lead/Tossup" would seem to indicate he wasn't considered an underdog, just not favored to win. As I recall the Democrats had a couple of unpleasant surprises in Georgia, because Sonny Purdue really was considered a "huge underdog."
From what I can see, they predicted two Democrat seats that went Republican, and one Republican seat that went Democrat. Everything else is as it was. Not a big indictment as no one's going to predict every race correctly.
Sorry, plus Minnesota which was Wellstone's lead until he died and no one even tried to predict the outcome after that.