Do my rankings suck? Or did Chicago not show up yesterday?

I’ve been doing computer rankings for football and basketball for almost 10 years. I’m not sure, but yesterday may have been the first time ever the lowest ranked team beat the highest ranked team. The Miami Dolphins were ranked #32 out of 32 teams and the Chicago Bears were ranked #1 out of 32, yet Miami, somehow went into Chicago and won convincingly. What the hell is going on? Its games like these that play havoc on computer rankings. I’ll be interested to see what this does to my rankings when I release them tomorrow.