Stadium Journey has developed its initial Home Field Advantage Ranking to compare the impact of stadiums on the home team based on several categories. The categories include home win/loss record, average attendance, the Stadium Journey "Fans" score, attendance based on percentage stadium capacity, and points scored vs points allowed. In 2012, Michigan Stadium provided the best overall home field advantage. We'll be announcing the ranking for each of the 124 FBS stadiums next week.
Here is the breakdown of how we calculated our rankings:
Overall Score: Sum of the adjusted scores in each category (Win/Loss home record, SJ Fan Score, Average Attendance, % Capacity, and Points Scored / Points Allowed)
Home Win/Loss Record: The home win/loss record is weighted stronger than the other categories. Only games at the primary home stadium are factored in. Though games at neutral sites technically have a home and away team, these games are not factored into any of the ranking data. The score is determined by dividing the total home wins by the total home games and then multiplying the number by 1.5. The maximum score would be 1.5 for teams that won all home games.
Example 1: BYU won 5 out of 6 home games in 2012. 5/6 = 0.8333. 0.8333 is then weighted by multiplying it by 1.5 = 1.2500 (final score)
Example 2: Michigan won all home games. 6/6 - 1.0000. 1.0000 is then weighted by multiplying it by 1.5 = 1.5000 (final score)
Stadium Journey "Fans" Rating: Stadium Journey conducts reviews for each stadium based on the FANFARE scale. Considering that many of the variables in the FANFARE rating are not applicable to as a home field advantage category, the "Fans" rating within the FANFARE system was most applicable and therefore utilized. The rating ranges from 0-5, with five being the highest. The score for the purposes of the HFA ranking is determined by dividing the Fans rating by 5.
Example 1: Michigan's Fans score is a 5. 5/5 = 1.0000. 1.0000 is the final score used in the ranking.
Example 2: Georgia's Fans score is a 4. 4/5 = .8000 (final score).
Average Attendance: The average attendance for each home stadium is ranked. The ranking is reverse coded where the team with the highest average attendance has the highest number. The reverse rank is then divided by the total amount of teams to get the final score.
Example 1: Michigan led the nation in average attendance. There are 124 teams in FBS so Michigan is coded as 124. 124/124 = 1.0000 (final score).
Example 2: LSU was 7th overall in average attendance. 7 is reverse coded to 118. 118/124 = .9516 (final score)
% Capacity Attendance: The average attendance is compared to the home stadium listed capacity. This information was pulled directly from the NCAA website. Capacity was maxed out at 100% and then divided by 1.5 to weight the scale.
Example 1: Michigan's % Capacity Attendance was listed as 102.4%. That number was maxed out at 100.0%. In numerical form, 100% is equivalent to 1.0000. This number is then divided by 1.5 which equals 0.6667 (final score).
Example 2: Florida's % Capacity Attendance was listed as 98.93%. In numerical form, 98.93% is equivalent to 0.9893. This number is then divided by 1.5 which equals 0.6595 (final score).
Points Scored vs Points Allowed: This category is determined by comparing the points scored versus the points allowed in each home game. This is done by taking the total points scored by the home team and dividing it by the total points scored by both teams combined. Since this item was determined to be a minor factor compared to the others, it was weighted to a lower value.
Example 1: Michigan scored 231 total points and allowed 96. The combined score total is 327. 231/327 = .7064. To weight the score, it is then divided by 1.5 = .4709 (final)
Tune in next week for our full college football Home Field Advantage Power Rankings from 2012.