Preseason Score Differential Ratings
Identifying the best FBS teams based entirely on the score differentials of every FBS game played this season.
This is a preseason projection, not a calculated rating. It's built from each team's final SDR last season, adjusted for returning production, portal additions, and incoming freshman class ratings — not from any games played this season. QU4D uses this to calculate quad rankings until week 5, once the season's own results provide enough data. See the algorithm page for more.
SDR normalized 0–100 index
SOS average opponent rating