Data Glossary

 

ALS :: Strength of schedule ratings (average team perspective)
Representing the number of losses an average team would expect to have against a schedule of opponents

AWD :: Strength of record ratings (average team perspective)
Representing the difference between actual wins and the number of wins an average team would expect to have against a schedule of opponents

DAY :: Defensive available yards percentage
Calculated by dividing drive yards (measured from starting field position to ending field position) by available yards (measured from starting field position to end zone) on opponent non-garbage, regulation offensive drives

DBD :: Defensive busted drive rate
Percentage of non-garbage, regulation opponent offensive drives that were held to zero or fewer yards

DFD :: Defensive first down rate
Percentage of non-garbage, regulation opponent offensive drives that earn at least 10 yards

DFEI :: Fremeau Efficiency Index defense ratings
Opponent-adjusted possession efficiency data representing the scoring advantage per non-garbage possession a defense would expect to have on a neutral field against an average opponent offense

DFP :: Defensive starting field position
Average starting field position on non-garbage, regulation opponent offensive drives

DPD :: Defensive points per drive
Points allowed per non-garbage, regulation opponent offensive drive

DPP :: Defensive yards per play
Drive yards per play on non-garbage, regulation opponent offensive drives

DSR :: Defensive drive success rate
Percentage of non-garbage, regulation opponent offensive drives that end with a touchdown or field goal attempt

DTD :: Defensive touchdown rate
Percentage of non-garbage, regulation opponent offensive drives that end with a touchdown

DVE :: Defensive possession efficiency
Per possession scoring value generated by a defense as a result of non-garbage opponent offensive drives

ELS :: Strength of schedule ratings (elite team perspective)
Representing the number of losses a team two standard deviations above average would expect to have against a schedule of opponents

EWD :: Strength of record ratings (elite team perspective)
Representing the difference between actual wins and the number of wins a team two standard deviations above average would expect to have against a schedule of opponents

FEI :: Fremeau Efficiency Index team ratings
Opponent-adjusted possession efficiency data representing the scoring advantage per non-garbage possession a team would be expected to have on a neutral field against an average opponent

FGE :: Field goal efficiency
Possession value generated per non-garbage field goal attempt

GLS :: Strength of schedule ratings (good team perspective)
Representing the number of losses a team one standard deviation above average would expect to have against a schedule of opponents

GWD :: Strength of record ratings (good team perspective)
Representing the difference between actual wins and the number of wins a team one standard deviation above average would expect to have against a schedule of opponents

KE :: Kickoff efficiency
Possession value generated per non-garbage kickoff

KRE :: Kickoff return efficiency
Possession value generated per non-garbage opponent kickoff

NAY :: Net available yards percentage
Calculated as the difference between OAY and DAY

NFP :: Net starting field position
Calculated as the difference between OFP and DFP

NPD :: Net points per drive
Calculated as the difference between OPD and DPD

NPP :: Net yards per play
Calculated as the difference between OPP and DPP

NPS :: Net possession starting value
Calculated as the difference between PS+ and PS-

NSR :: Net drive success rate
Calculated as the difference between OSR and DSR

NXE :: Net extra point efficiency
Net special teams possession value generated per point-after-attempt calculated from kick and conversion attempts following all team and opponent non-garbage touchdowns

OAY :: Offensive available yards percentage
Calculated by dividing drive yards (measured from starting field position to ending field position) by available yards (measured from starting field position to end zone) on non-garbage, regulation offensive drives

OBD :: Offensive busted drive rate
Percentage of non-garbage, regulation offensive drives that were held to zero or fewer yards

ODA :: Offensive strength of schedule
Calculated as the difference between opponent-adjusted OFEI and unadjusted OVE

OFD :: Offensive first down rate
Percentage of non-garbage, regulation offensive drives that earn at least 10 yards

OFG :: Opponent field goal efficiency
Possession value generated per non-garbage opponent field goal attempt

OFEI :: Fremeau Efficiency Index offense ratings
Opponent-adjusted possession efficiency data representing the scoring advantage per non-garbage possession an offense would expect to have on a neutral field against an average opponent defense

OFP :: Offensive starting field position
Average starting field position on non-garbage, regulation offensive drives

OOA :: Defensive strength of schedule
Calculated as the difference between opponent-adjusted DFEI and unadjusted DVE

OPD :: Offensive points per drive
Points scored per non-garbage, regulation offensive drives

OPP :: Offensive yards per play
Drive yards per play on non-garbage, regulation offensive drives

OSA :: Special teams strength of schedule
Calculated as the difference between opponent-adjusted SFEI and unadjusted SVE

OSR :: Offensive drive success rate
Percentage of non-garbage, regulation offensive drives that end with touchdown or field goal attempt

OTD :: Offensive touchdown rate
Percentage of non-garbage, regulation offensive drives that end with a touchdown

OVE :: Offensive possession efficiency
Per possession scoring value generated by an offense as a result of non-garbage offensive drives

PE :: Punt efficiency
Possession value generated per non-garbage punt

PRE :: Punt return efficiency
Possession value generated per non-garbage opponent punt

PS+ :: Possession starting value
Average expected scoring value of a team's own non-garbage possessions, including the value of offensive drives, non-offensive possessions, and overtime possessions

PS- :: Opponent possession starting value
Average expected scoring value of an opponent's non-garbage possessions, including the value of offensive drives, non-offensive possessions, and overtime possessions

PVE :: Possession efficiency
Per possession scoring value generated by a team as a result of non-garbage possessions

SFEI :: Fremeau Efficiency Index special teams ratings
Opponent-adjusted possession efficiency data representing the scoring advantage per non-garbage possession a team's combined non-offensive and non-defensive units would expect to have on a neutral field against an average opponent

SVE :: Possession efficiency
Per possession scoring value generated by a team's combined non-offensive and non-defensive units as a result of non-garbage possessions