The holographic billboard in Courthouse Square of Hill Valley promised “Cubs Win World Series – Sweep Miami”.

They faced off last month, but only won one game out of three.  Miami went on the road to Chicago the first weekend in July, but Chicago’s hopes for a sweep were quickly dashed when Miami won the Friday, July 3rd game 2-1.  The Cubs came back and won the next two 7-2 and 2-0, but that early loss eliminated any possibility of sweeping Miami in 2015.  The two teams do not face each other again during the regular season.  Given Miami’s record, it’s unlikely (although not impossible) that they’ll reach the postseason.

Prediction Accuracy: Failed