SmashMouth

Microsoft Cortana had one of its worst weeks of the NFL season, correctly predicting nine of 16 Week 14 games.

It's now 135-73 (64.9%) on the year.

Cortana is a Windows phone virtual assistant that uses a Bing Predicts algorithm to predict every NFL game. Its 135-73 record is almost identical to the 135-69-4 record that Vegas favorites have. Cortana is behind the 144-64 (69.2%) record that Nate Silver's ELO model has through 14 weeks. The algorithm picks games straight-up, not against the spread.

Cortana's 9-7 Week 14 was its worst week since Week 4, when it went 5-8. Vegas favorites went 10-5-1 in Week 14. ELO went 12-4.



The algorithm nailed the World Cup, correctly picking 15 of the tournament's final 16 games. It's having a tougher time picking NFL games.

Here are Cortana's picks for Week 15 as of Tuesday afternoon. We'll update them throughout the week if they change (Vegas favorites in parentheses):

New Orleans Saints vs. Chicago Bears— Saints win, 53.3% chance (Saints -3)

Read more: Microsoft Cortana NFL Picks, Week 15 - Business Insider

As wrong as she has been lately, quite on a roll really, does this guarantee a loss?

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