Nate Silver :: The Most Shocking Result in World Cup History - http://fivethirtyeight.com/datalab...
"The Soccer Power Index (SPI) match-predictor (which uses a poisson distribution to estimate the range of possible scores) gave Germany only a 0.022 percent probability (about one chance in 4,500) of scoring seven or more goals. Likewise, SPI gave Germany a 0.025 percent probability (one chance in 4,000) of beating Brazil by six goals or more. Statistical models can fail at the extreme tails of a probability distribution." - Adriano