Arsenal, as anticipated, took down Liverpool so badly, making me doubt Bing's prediction algorithm in. No one who follows premier league would have expected a win for Liverpool against gunners.
Cortana told me Aston Villa's last two matches would be lose, win and both by a good margin. They were in fact reversed win, lose. They are playing Manchester United right now and down 1-0 as expected & predicted but even so I'm still doubting Cortana's accuracy too.