There are 3 sources of data that are being pulled together and an overall winner is determined by the team that wins the matchup in 2 or more of the comparisons. The 3 data sources are:
1. Vegas odds (via NFLodds.com)
2. Pro-Football-Reference Simple Rating System (listed as SRS in the weekly standings)
3. Average points per game based on each team’s average scoring and average points against. So, each team’s points per game are averaged against their opponents’ average points against to get a projected score for each team. Then the average score is compared (with 3 points given to the home team) to determine a winner.
Here are the week 9 predictions (scroll across for the overall winner and projected scores or open the full NFL Matchup Predictions spreadsheet here):