BPR | A system for ranking teams based only one wins and losses and strength of schedule. See BPR for an explanation. |
EPA (Expected Points Added) | Expected points are the points a team can "expect" to score based on the distance to the end zone and down and distance needed for a first down, with an adjustment for the amount of time remaining in some situations. Expected points for every situation is estimated using seven years of historical data. The expected points considers both the average points the offense scores in each scenario and the average number of points the other team scores on their ensuing possession. The Expected Points Added is the change in expected points before and after a play. |
EP3 (Effective Points Per Possession) | Effective Points Per Possession is based on the same logic as the EPA, except it focuses on the expected points added at the beginning and end of an offensive drive. In other words, the EP3 for a single drive is equal to the sum of the expected points added for every offensive play in a drive (EP3 does not include punts and field goal attempts). We can also think of the EP3 as points scored+expected points from a field goal+the value of field position change on the opponent's next possession. |
Adjusted for Competition | We attempt to adjust some statistics to compensate for differences in strength of schedule. While the exact approach varies some from stat to stat the basic concept is the same. We use an algorithm to estimate scores for all teams on both sides of the ball (e.g., offense and defense) that best predict real results. For example, we give every team an offensive and defensive yards per carry score. Subtracting the offensive score from the defensive score for two opposing teams will estimate the yards per carry if the two teams were to play. Generally, the defensive scores average to zero while offensive scores average to the national average, e.g., yards per carry, so we call the offensive score "adjusted for competition" and roughly reflects what the team would do against average competition |
Impact | see Adjusted for Competition. Impact scores are generally used to evaluate defenses. The value roughly reflects how much better or worse a team can expect to do against this opponent than against the average opponent. |
[-] About this table
Includes the
top 180 QBs by total plays
Total <=0 | Percent of plays that are negative or no gain |
Total >=10 | Percent of plays that gain 10 or more yards |
Total >=25 | Percent of plays that gain 25 or more yards |
10 to 0 | Ratio of Total >=10 to Total <=0 |
Includes the
top 240 RBs by total plays
Total <=0 | Percent of plays that are negative or no gain |
Total >=10 | Percent of plays that gain 10 or more yards |
Total >=25 | Percent of plays that gain 25 or more yards |
10 to 0 | Ratio of Total >=10 to Total <=0 |
Includes the
top 300 Receivers by total plays
Total <=0 | Percent of plays that are negative or no gain |
Total >=10 | Percent of plays that gain 10 or more yards |
Total >=25 | Percent of plays that gain 25 or more yards |
10 to 0 | Ratio of Total >=10 to Total <=0 |
Includes
the
top 180 players by pass attempts)
3rdLComp% |
Completion % on 3rd and long (7+
yards) |
SitComp% |
Standardized completion % for
down and distance. Completion % by down and distance are weighted by
the national average of pass plays by down and distance. |
Pass <=0 | Percent of pass plays that are negative or no gain |
Pass >=10 | Percent of pass plays that gain 10 or more yards |
Pass >=25 | Percent of pass plays that gain 25 or more yards |
10 to 0 | Ratio of Pass >=10 to Pass<=0 |
%Sacks |
Ratio of sacks to pass plays |
Bad INTs |
Interceptions on 1st or 2nd down
early before the last minute of the half |
Includes the top 240 players by carries
YPC1stD |
Yards per carry on 1st down |
CPCs |
Conversions (1st down/TD) per
carry in short yardage situations - the team 3 or fewer yards for a 1st
down or touchdown |
%Team Run |
Player's carries as a percent of team's carries |
%Team RunS |
Player's carries as a percent of team's carries in short
yardage situations |
Run <=0 |
Percent of running plays that
are negative or no gain |
Run >=10 |
Percent of running plays that
gain 10 or more yards |
Run >=25 | Percent of running plays that gain 25 or more yards |
10 to 0 | Ratio of Run >=10 to Run <=0 |
Includes the top 300 players by targets
Conv/T 3rd | Conversions per target on 3rd Downs |
Conv/T PZ | Touchdowns per target inside the 10 yardline |
%Team PZ | Percent of team's targets inside the 10 yardline |
Rec <=0 | Percent of targets that go for negative yards or no net gain |
Rec >=10 | Percent of targets that go for 10+ yards |
Rec >=25 | Percent of targets that go for 25+ yards |
10 to 0 | Ratio of Rec>=0 to Rec<=0 |
Includes the top 300 players by targets
xxxx | xxxx |
...
Includes players with a significant number of attempts
NEPA | "Net Expected Points Added": (expected points after play - expected points before play)-(opponent's expected points after play - opponent's expected points before play). Uses the expected points for the current possession and the opponent's next possession based on down, distance and spot |
NEPA/PP | Average NEPA per play |
Max/Min | Single game high and low |
Includes players with a significant number of attempts
NEPA | "Net Expected Points Added": (expected points after play - expected points before play)-(opponent's expected points after play - opponent's expected points before play). Uses the expected points for the current possession and the opponent's next possession based on down, distance and spot |
NEPA/PP | Average NEPA per play |
Max/Min | Single game high and low |
Adjusted | Reports the per game EPA adjusted for the strength of schedule. |
Defensive Possession Stats
Points/Poss | Offensive points per possession |
EP3 | Effective Points per Possession |
EP3+ | Effective Points per Possession impact |
Plays/Poss | Plays per possession |
Yards/Poss | Yards per possession |
Start Spot | Average starting field position |
Time of Poss | Average time of possession (in seconds) |
TD/Poss | Touchdowns per possession |
TO/Poss | Turnovers per possession |
FGA/Poss | Attempted field goals per possession |
%RZ | Red zone trips per possession |
Points/RZ | Average points per red zone trip. Field Goals are included using expected points, not actual points. |
TD/RZ | Touchdowns per red zone trip |
FGA/RZ | Field goal attempt per red zone trip |
Downs/RZ | Turnover on downs per red zone trip |
Defensive Play-by-Play Stats
EPA/Pass | Expected Points Added per pass attempt |
EPA/Rush | Expected Points Added per rush attempt |
EPA/Pass+ | Expected Points Added per pass attempt impact |
EPA/Rush+ | Expected Points Added per rush attempt impact |
Yards/Pass | Yards per pass |
Yards/Rush | Yards per rush |
Yards/Pass+ | Yards per pass impact |
Yards/Rush+ | Yards per rush impact |
Exp/Pass | Explosive plays (25+ yards) per pass |
Exp/Rush | Explosive plays (25+ yards) per rush |
Exp/Pass+ | Explosive plays (25+ yards) per pass impact |
Exp/Rush+ | Explosive plays (25+ yards) per rush impact |
Comp% | Completion percentage |
Comp%+ | Completion percentage impact |
Yards/Comp | Yards per completion |
Sack/Pass | Sacks per pass |
Sack/Pass+ | Sacks per pass impact |
Sack/Pass* | Sacks per pass on passing downs |
INT/Pass | Interceptions per pass |
Neg/Rush | Negative plays (<=0) per rush |
Neg/Run+ | Negative plays (<=0) per rush impact |
Run Short | % Runs in short yardage situations |
Convert% | 3rd/4th down conversions |
Conv%* | 3rd/4th down conversions versus average by distance |
Conv%+ | 3rd/4th down conversions versus average by distance impact |
Offensive Play-by-Play Stats
Plays | Number of offensive plays |
%Pass | Percent pass plays |
EPA/Pass | Expected Points Added per pass attempt |
EPA/Rush | Expected Points Added per rush attempt |
EPA/Pass+ | Expected Points Added per pass attempt adjusted for competition |
EPA/Rush+ | Expected Points Added per rush attempt adjusted for competition |
Yards/Pass | Yards per pass |
Yards/Rush | Yards per rush |
Yards/Pass+ | Yards per pass adjusted for competition |
Yards/Rush+ | Yards per rush adjusted for competition |
Exp Pass | Explosive plays (25+ yards) per pass |
Exp Run | Explosive plays (25+ yards) per rush |
Exp Pass+ | Explosive plays (25+ yards) per pass adjusted for competition |
Exp Run+ | Explosive plays (25+ yards) per rush adjusted for competition |
Comp% | Completion percentage |
Comp%+ | Completion percentage adjusted for competition |
Sack/Pass | Sacks per pass |
Sack/Pass+ | Sacks per pass adjusted for competition |
Sack/Pass* | Sacks per pass on passing downs |
Int/Pass | Interceptions per pass |
Neg/Run | Negative plays (<=0) per rush |
Neg/Run+ | Negative plays (<=0) per rush adjusted for competition |
Run Short | % Runs in short yardage situations |
Convert% | 3rd/4th down conversions |
Conv%* | 3rd/4th down conversions versus average by distance |
Conv%+ | 3rd/4th down conversions versus average by distance adjusted for competition |
Offensive Possession Stats
Points/Poss | Offensive points per possession |
EP3 | Effective Points per Possession |
EP3+ | Effective Points per Possession adjusted for competition |
Plays/Poss | Plays per possession |
Yards/Poss | Yards per possession |
Start Spot | Average starting field position |
Time of Poss | Average time of possession (in seconds) |
TD/Poss | Touchdowns per possession |
TO/Poss | Turnovers per possession |
FGA/Poss | Attempted field goals per possession |
Poss/Game | Possessions per game |
%RZ | Red zone trips per possession |
Points/RZ | Average points per red zone trip. Field Goals are included using expected points, not actual points. |
TD/RZ | Touchdowns per red zone trip |
FGA/RZ | Field goal attempt per red zone trip |
Downs/RZ | Turnover on downs per red zone trip |
PPP | Points per Possession |
aPPP | Points per Possession allowed |
PPE | Points per Exchange (PPP-aPPP) |
EP3+ | Expected Points per Possession |
aEP3+ | Expected Points per Possession allowed |
EP2E+ | Expected Points per Exchange |
EPA/Pass+ | Expected Points Added per Pass |
EPA/Rush+ | Expected Points Added per Rush |
aEPA/Pass+ | Expected Points Allowed per Pass |
aEPA/Rush+ | Expected Points Allowed per Rush |
Exp/Pass | Explosive Plays per Pass |
Exp/Rush | Explosive Plays per Rush |
aExp/Pass | Explosive Plays per Pass allowed |
aExp/Rush | Explosive Plays per Rush allowed |
BPR | A method for ranking conferences based only on their wins and losses and the strength of schedule. See BPR for an explanation. |
Power | A composite measure that is the best predictor of future game outcomes, averaged across all teams in the conference |
P-Top | The power ranking of the top teams in the conference |
P-Mid | The power ranking of the middling teams in the conference |
P-Bot | The power ranking of the worst teams in the conference |
SOS-Und | Strength of Schedule - Undefeated. Focuses on the difficulty of going undefeated, averaged across teams in the conference |
SOS-BE | Strength of Schedule - Bowl Eligible. Focuses on the difficulty of becoming bowl eligible, averaged across teams in the conference |
Hybrid | A composite measure that quantifies human polls, applied to converences |
Player Game Log
Use the yellow, red and green cells to filter values. Yellow cells filter for exact matches, green cells for greater values and red cells for lesser values. By default, the table is filtered to only the top 200 defense-independent performances (oEPA). The table includes the 5,000 most important performances (positive and negative) by EPA.
Use the yellow, red and green cells to filter values. Yellow cells filter for exact matches, green cells for greater values and red cells for lesser values. By default, the table is filtered to only the top 200 defense-independent performances (oEPA). The table includes the 5,000 most important performances (positive and negative) by EPA.
EPA | Expected points added (see glossary) |
oEPA | Defense-independent performance |
Team Game Log
Use the yellow, red and green cells to filter values. Yellow cells filter for exact matches, green cells for greater values and red cells for lesser values.
Use the yellow, red and green cells to filter values. Yellow cells filter for exact matches, green cells for greater values and red cells for lesser values.
EP3 | Effective points per possession (see glossary) |
oEP3 | Defense-independent offensive performance |
dEP3 | Offense-independent defensive performance |
EPA | Expected points added (see glossary) |
oEPA | Defense-independent offensive performance |
dEPA | Offense-independent defensive performance |
EPAp | Expected points added per play |
Monday, October 14, 2013
Sunday, October 13, 2013
The week's best and worst performances
EP3 (effective points per possession) measures performance points and impact on field position per possession. Perf-O and Perf-D adjust the EP3 for the quality of the opposition.
Wednesday, October 9, 2013
Could Baylor average 4 points/possession?
As of right now, Baylor is averaging 4.23 points/possession and Florida State 4.20, so I could have written about Florida State. But while Florida State has been good, Baylor has been better. Baylor leads the nation in EP3+, yards/possession, EPA/pass and EPA/rush, yards/pass and explosive plays/pass. Bryce Petty leads the world in EPA+ and EPA+/pass, and he is 8th among QBs in EPA+/rush. Seastrunk is 2nd in EPA+ among running backs and Linwood is 7th. So far this season, Baylor has been the best offense in the country and it isn't close. [And if anyone thinks I'm biased, I'll have you know that I can't read the above paragraph without wanting to vomit.]
But 4 points per possession is no easy task. Louisiana Tech led everyone last season with about 3.5. Remember when Sam Bradford was kicking butt at Oklahoma (before BYU broke him)? The 2008 team managed 3.66. The Oregon team that lost to Cam Newton? They averaged only 3.15. Andrew Luck and his Cardinal were the standard bearers that year, and they averaged only 3.50.
So why could Baylor do it? First, they are doing it. Not only do they have a track record of offensive proficiency, but they only need to average about 3.9 points/possession the rest of the way. Second, this offense is really, really good. The Manziels were historically good last year. They finished with an EP3+ of 2.15. Baylor so far this season (and, mind you, it is early) is a full point better.
Third, perhaps the biggest challenge to reaching 4 is you have to keep scoring from beginning to end. Unlike the advanced metrics on this site, points/possession doesn't weight high-leverage possessions or drop junk time. The really good offenses take the foot off the pedal when they're up 35 points in the third quarter. This is one reason Alabama tends to score well in points/possession - they play slowly enough that it takes them longer than Oregon to get the huge lead.
Their are three possible solutions:
1) Play really bad defense (call this the A&M 2013 approach). Games stay close and you have to keep scoring. The problem with this approach is that most good offenses are like the "40 minutes of hell" Arkansas teams. The defense feeds into the offense. Regardless, Baylor has been playing good defense so far this season.
2) Have a soulless **** for a coach. I have nothing against Art Briles personally, but he doesn't seem like the type of man to worry too much about appearances. But more relevant is . . .
3) Score really, really fast. Manziel and the Aggies perfected this technique at the end of 2012. You can always go full speed in the first half, so score 42-56 points on 6-8 possessions, and then slow things down (but don't stop) in the second half. Baylor is averaging about 50 points in the first half.
Baylor is projected to more than 4 points/possession in every game this year but TCU. They are projected to more than 4.8 points per possession against Iowa State, Kansas and Texas. But staying above 4 is like hitting .400 in baseball with the expectation that you give away some at bats when your team is up big. This team might be the best equipped of any in history to do it, but it's still a long shot.
Tuesday, October 8, 2013
Monday, October 7, 2013
The week's best defensive performances
Maryland had scored at least 32 points a game. They scored 37 against West Virginia, as many as Oklahoma and OSU combined. C.J. Brown was third among quarterbacks in terms of percent of passes completed for 25+ yards. And Florida State allowed 234 yards and 0 points against the Terps.
Sunday, October 6, 2013
Best offensive performances of the week
LSU, Florida State, Boston College, and South Carolina outscored Baylor by EP3 - the Bears had some imperfections on their way to 56 points at half time and 73 points total - but they get extra credit for doing it against West Virginia, not Maryland, Army or Kentucky. That might sound odd, but West Virginia allowed 37 total points to Oklahoma and Oklahoma State.
Wednesday, October 2, 2013
Tuesday, October 1, 2013
A closer look at the nation's top defense
By EP3+, the top eight offenses in the country so far have been (in order) Baylor, Illinois, Oregon, Texas A&M, Georgia, Florida State, Louisville, and Ohio State. Seven of the eight were locks to be among the nation's top defenses before the season started, and you can't deny Illinois' production.
Top eights defenses by EP3+? West Virginia, Florida, Washington, Virginia Tech, Louisville, Baylor, Alabama, Penn State. Yeah, that's weird.
West Virginia? The Mountaineer claim to fame is that they allowed 16 points to Oklahoma and 21 to Oklahoma State. They did allow 37 to Maryland, but the Terps are averaging 40. Saturday they play Baylor. I doubt they'll pass that test.
Baylor/Louisville? Numbers 1 and 2 in fewest points allowed per possession. Baylor has me convinced for now that they're a legitimate title contender. I'm less sold on Louisville, but they've definitely opened my eyes.
Washington? Seventh in points/possession allowed and they've played Boise State, Illinois and Arizona.
Top eights defenses by EP3+? West Virginia, Florida, Washington, Virginia Tech, Louisville, Baylor, Alabama, Penn State. Yeah, that's weird.
West Virginia? The Mountaineer claim to fame is that they allowed 16 points to Oklahoma and 21 to Oklahoma State. They did allow 37 to Maryland, but the Terps are averaging 40. Saturday they play Baylor. I doubt they'll pass that test.
Baylor/Louisville? Numbers 1 and 2 in fewest points allowed per possession. Baylor has me convinced for now that they're a legitimate title contender. I'm less sold on Louisville, but they've definitely opened my eyes.
Washington? Seventh in points/possession allowed and they've played Boise State, Illinois and Arizona.
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