OFFICIAL NJ Football Strength Index numbers for all teams following Week Four action

We’re now officially past the mid-way point of the high school football regular season, and the playoff standings are coming more into focus. Which means more attention on Strength Index values, which give teams its OSI rating, which is 60 percent of the playoff qualification formula.

Team’s get 100 percent of an opponent’s Strength Index (SI) value for a win, and 50 percent for a loss, with defeats at the hands of some non-public teams (multipliers) worth more, anywhere from 70 to 80 percent.

But it’s all based on the Strength Index value of teams, and we’re the only place you can find all of the numbers in one, handy location.

The values below are all Central Jersey Sports Radio’s calculations through games played in Week Four, confirmed with the numbers for every single team in the state on NJ.com, which performs the official calculations for the NJSIAA.

Each week, SI values change based on the final score and the rating of the two teams that played. Here’s an example. SI goes up or down depending on how a team did compared to the difference between the two teams. If Team A (80 SI) plays Team B (60 SI) and Team A wins by 20, there’s no change. If Team A wins by 10, they underperformed by 10 points, and Team B overperformed by 10 points. Team B increases by 2 points to become a 62, and Team A drops to a 78. Team A then gets the full value of Team B for its OSI (62) while Team B gets half the value of Team A (39).

Here are Central Jersey Sports Radio’s UNOFFICIAL Strength Index values after Week Four play:

Note: The NJ.com standings also revealed the SI values of out-of-state opponents for games already played. You can find them by going to a team’s power point calculation page.

Changes? NJ.com says that updates will push every morning at 6 am, if there are any. If an incorrect score has been confirmed and changed, that could affect the SI and OSI of multiple teams, depending on how many games have been played, if any, since the error.