As the playoffs continue on the the group semifinal stage among all schools – public and non-public – and everyone else wrapped up with regular season play, except for those who keep Thanksgiving rivalries alive, Strength Index continues to be measured across the state.
Simply based on the state’s Strength Index formula – which helps determine a team’s OSI, which is 60% of the UPR playoff formula – the rankings will change each week as games are played. See methodology at the bottom of this page.
The rankings typically use the official NJSIAA Strength Index values calculated by Gridiron New Jersey, which updates them on each team’s page on a weekly basis. However, since those are only updated in the regular season, we do our own unofficial calculations for the entire state.
Here are the Week 11 rankings in the Big Central and statewide.
In the Big Central, Somerville’s win over Delsea in the Central Jersey Group 3 final – coupled with St. Thomas Aquinas losing in the Non-Public Group B quarterfinals – moves the Pioneers ahead of the Trojans. The rest of the top eight remain the same.
Statewide, Winslow and Millville remain Nos. 1 and 2, but Don Bosco’s Prep big win over St. Joseph-Metuchen propelled them up to third, a jump of two spots. That knocked Bergen Catholic to fourth, while DePaul went from tenth to No. 5, knocking Union City from fourth to eighth.
Among Big Central teams, title winners Somerville and Phillipsburg gained, while St. Thomas dropped. The Pioneers edged up from No. 11 to tenth, while Phillipsburg soared six spots to No. 12. St. Thomas Aquinas. dropped from eighth to 13th.
Strength Index Methodology: Team A and Team B are compared to find the difference between their rankings, which provides the Expected Result. The margin of the final score is figured in positive or negative terms compared to the Expected Result. The difference is divided by five, and the teams increase or decrease by the resulting number.
Example #1: Team A has an SI value of 80, while Team B has an SI value of 60. The Expected Result is +20 for Team A. When the game is played, Team A wins by 30. That is 10 points higher than the expected result. Than number is divided by 5, meaning Team A increases by 2 (Team A now has an SI of 82) while Team B decreases by 2 (Team B now has an SI of 58).
Example #2: In the same scenario, Team A defeats Team B by 20. That is the same as the Expected Result, no there is no change. Team A remains with an SI value of 80, while Team B retains its 60 SI value.
Example #2: Team A defeats Team B by 10. That is 10 points fewer than the expected result. Divide by 5 to get 2, but in this case, Team A drops by 2 points to 78 (because Team A “underperformed”) while Team B increases by 2 points to 62.
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