A chance of a draw is probably 1 in a million
Because there will never be a dead set draw, 44,938 vs 44,938 votes. I do know that in a series in Italy (not BB), might have been The Farm or an Island or something, the % between two contestants were 50.003% and 49.997%. They had to reveal it like that because it was so close. I think there was 60 votes between them.