A lot of polls called the Allard-Strickland race in Colorado incorrectly in 2002, I think. I don't remember other examples except maybe Mondale-Coleman in 2002, as well.
Allard-Strickland bounced back and forth, but youre right that Allard was consistenly under 50%, he got 51%.
Mondale wasnt in the race long enough for any poll to be accurate.