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VHSL-Reference Glossary

Defense Rating

Defense Rating is a rating which applies to a teams defense only and where the stronger the defense, the higher the defense rating, or conversely, the weaker the teams defense, the lower the defense rating. The statewide average team defense rating is 50.0

Game Rating

Game Ratings are a metric devised by VHSL-Reference to show how a team played in any particular game.
The formula to determine a teams game rating is:

Actual Point Difference - Expected Point Difference + Team Rating = Team Game Score

Actual Point Difference   =  (Team Points Scored - Opponent Points Scored.)
Expected Point Difference = (1.0* (Team Rating - Opponent Rating))

* Expected/Actual Point Difference is limited to 50 points.

Phoebus 2008 game ratings calculated

Phoebus vs Bethel  
Game Actual Score
52-0 = Phoebus +52
Game Expected Score
 1* (125.6 - 88.8) = Phoebus + 36.8
Game Score Calculation
50 - 36.8 + 125.6 =140.8
Phoebus overplayed season rating by 15.2 points

gamedate gy gw Team PF Opp PA Team
Wins
Opp
Wins
Team
Rating
OPP
Rating
EXP
Diff
ACT
Diff
* ACT
Diff
ADJ
DELTA GM SCORE
05-Sep-08 2008 3 Phoebus 52 Bethel 0 15 8 125.6 88.8 29.4 52.0 50.0 20.6 140.8

* Expected/Actual Point Difference is limited to 50 points.

Headline Points:     See Team Headline Points

Headline Points are based on the formula below

The formula for Headline Points =  ((# Games with Defense Shoutouts) + (# Games with Offense Points > 49) -  (2 * # Games Lost))

VHSL Game Predictor

These are the Yearly Won/Loss records for the VHSL game predictor.

By Year
Year W L PCT
2000 1070 267 0.800
2001 1158 285 0.802
2002 1193 291 0.804
2003 1224 288 0.809
2004 1199 309 0.795
2005 1227 305 0.801
2006 1252 292 0.811
2007 1233 305 0.802
2008 1269 315 0.801
2009      

Intangible Rating       See Team Intangible Ratings

A team's intangible rating reflects the team's difference in their overall rating that cannot be attributed to their Offense and Defense Rating.
The statewide average intangible team rating is 0 and a team's average intangible rating over a period of years will converge toward 0.



L:

Losses

Offense Rating     See Team Offense Ratings

Offense Rating is a rating which applies to a teams offense only and where the stronger the offense, the higher the offense rating, or conversely, the weaker the teams offense, the lower the offense rating. The statewide average team offense rating is 50.0

O/D Ratio:       See Team O/D Ratios

The O/D ratio measures the percentage of the teams total rating that can be attributed their offense and defense.

PA:

Points allowed



PF:

Points scored (for)



Rating (State)
           See State Ratings

A performance-based rating system for predicting VHSL football games and rating teams.

Primary factors of the rating system are:

  • Team won-loss record.
  • Team strength of schedule (Opponent Rating)
  • Team % of game points scored

The average state ratings are shown for each division below.

Div Teams Rating RPI Stud
6 723 76.1 0.518 2,120
5 738 63.0 0.479 1,552
4 536 53.3 0.516 1,221
3 526 43.8 0.494 844
2 485 30.8 0.497 559
1 542 19.0 0.458 334
AVG 3551 50.2 0.500 1,191

Rating (Division Adjusted)

A division adjusted state rating.
The State ratings are normalized so that the average team rating across all 300+ teams is 50.
For the DIVADJ rating, the  ratings are normalized so that the average team rating across all division teams is 50.

Similar Teams (Sim Score)

VHSL-Reference has two methods of finding similar teams:

Method 1 Sim Score Factors : Rating, W, L.
This method finds the teams that have ratings within 5% of each other and wins and losses within 1 win or loss from each other.

Method 2 Sim Score Factors : PF, PA .
This method finds the teams that have PF within 5% of each other and PA within 5% of each other.

SOS:

Strength of Schedule

Strength of Schedule (SOS) is a rating which applies to a teams schedule where the stronger the opponents, the higher the SOS rating,
or conversely, the weaker the opponents, the lower the SOS rating.


SOS-D:

Strength of Schedule Differential.

Student Efficiency Rating (SER):           See Student Efficiency Ratings

Student Efficiency Rating (SER) is a metric devised by VHSL-Reference to show which teams get the most football rating points from their student enrollment, basically its the team rating points per capita. The Student Efficiency Rating (SER) is calculated by (Rating)/ Students).

For example

Team A Rating 85 Team A Enrollment 2,000 SER might = 1.00

Team B Rating 85 Team B Enrollment 1,000 SER would = 2.00

Essentially Team B got the same number of rating points with half the number of students, hence their 1000 students were twice as efficient as Team A's.

The statewide average SER is 1.00.

Team % of game points scored:

The percentage of the total points scored in the teams games that were scored by the team.

For example if the game score is 24-0. The winning team scored 100% of the game points scored and the losing team 0 % of Game Points Scored.
If during the season a team scores 300 points and allows 100 points their Team % of game points scored would be 75% as they scored 300 points out of the 400 game points scored in their games.

W:

Wins

WIN PCT:

Winning percentage