This week I will start with picks, and then describe the prediction model I used to generate the picks below. I'm also getting a big head so I thought someone might be interested in my own picks--and that way we can see if I'm smarter than my own computer. The prediction model (PM 3.0 this week) and I will go head to head on 5 games a week, picking winners and against the spread, and then I will also post PM 3.0's picks for the rest of D 1-A (aka FBS).
If you are interested in spreads, covers.com is the place to go. I have included the handicap for the home team in parentheses.
Game 1. Ohio State @ Penn State (+4)
I don't think this game will be as close as it looks like it should be. Sure, its in Happy Valley, and, sure, Ohio State and Penn State statistically look very similar--except in one very important area, the win/loss record. Watch Morelli to crack like Woodson at SC and OSU will win this walking away.
Me:
To Win: Ohio State
Against the Spread: Ohio State
PM 3.0:
To Win: Ohio State
Against the Spread: Ohio State
Game 2. West Virginia @ Rutgers (+6.5)
Again, the better team is on the road. Pat White will be healthy (or as healthy as he ever is) and West Virginia will be flying around the field again. It is important in this game to consider match ups. South Florida beat WV (at home) because they had the speed on defense to contain Slaton and White. Rutgers beat South Florida (at home) because that speed didn't translate well when Rice was slamming it down their throats. Rutgers, so far, has been a flat, uninspiring team with the exception of one Thursday night. West Virginia will break it open in the second half and score to many points for Rice to keep up.
Me:
To Win: West Virginia
Against the Spread: West Virginia
PM 3.0:
To Win: Rutgers
Against the Spread: Rutgers
Game 3. South Florida @ Connecticut (+4.5)
I have included this game only because I can. Who would have predicted at the beginning of the year that this game would pit two ranked, one-loss teams against each other with Big East title hopes alive? But seriously, I can't get myself to believe that UConn has a good team--when has Connecticut ever produced a good athlete? And I'm not the only one to think this.1 South Florida is definitely the better team, but cold weather and inexperience may slow them down. They still win easily.
Me:
To Win: South Florida
Against the Spread: South Florida
PM 3.0:
To Win: South Florida
Against the Spread: South Florida
Game 4. USC @ Oregon (-3)
I was worried that Mark Sanchez off the bench might give SC the spark they needed to be a good football team again. Fortunately, he's not everything he was supposed to be. It looks like Booty's finger will be well enough and he will lead his team to another mediocre performance. A note on USC--their big victories are against Nebraska (cupcake) and Notre Dame (wedding cake). They lost to Stanford (cheese puff) and almost lost to Arizona (lost little child). Oregon's beat down of Michigan was impressive, but that was a Michigan team that is still recovering from the week 1 train wreck. Both teams are talented, but with PAC-10 talent - either could win by 30 or flake out and lose to my high school team. I take USC, because they have more raw talent to start with.
Me:
To Win: USC
Against the Spread: USC
PM 3.0:
To Win: USC
Against the Spread: USC
Game 5a. Boston College @ Virginia Tech (-3)
See Game 4. Two teams that have not been all that impressive, but, to their credit, they have been winning a lot of games. I'm taking Virginia Tech to knock off the first top 10 team this weekend on Thursday, but it will be close.
Me:
To Win: Virginia Tech
Against the Spread: Boston College
PM 3.0:
To Win: Boston College
Against the Spread: Boston College
Game 5b. Kansas @ Texas A&M (+2.5)
I had to include this game for a number of reasons. First, this might be Kansas's only weekend in the top 10, so we must take a moment to recognize it. Second, I would like to note that Kansas is actually very good and undefeated for a reason (the same reason that BC is undefeated but without the same level of respect). After Saturday Kansas will have two cupcakes (Iowa State and Nebraska) and a road game in Stillwater before the final match up against Missouri. Finally, I have included this game so I can point out that, while they are getting no love from the national media, the Aggies have only lost twice and they are tied for first in the South. The outcome of the game depends on the Aggie passing game. If Kansas can put 8 in the box all night, they win and cover the spread; if not, and A&M burns the secondary a time or two at Kyle Field, it could be very interesting. One last quick note on Kansas--they have covered the last five weeks.
Me:
To Win: I abstain
Against the Spread: I abstain
PM 3.0:
To Win: Kansas
Against the Spread: Kansas
The Rest: Click image to see a legible version
It includes the probability for each team of winning and beating the spread and the yards. Obviously, if a team has a better than 50% chance of winning then they are "favored".
PM 3.0
Prediction Model 3.0 is my first model to account for match ups. The method I have chosen to do this is too simple, but I'm building on trial and error for now. The basic idea is that teams have relatively consistent run to pass ratios. I use time of possession and plays per second to estimate how many plays a team will have in a game (adjusted for how long their opponent will have the ball) and then estimate the number of run and pass plays each team will run. Using their average yards per run play, completion percentage, and average yards per completion, adjusting for the other teams defensive strengths, I can get a figure on the number of total yards a team should have. I then use the basic rating system I used in PM 2.11 and give a bonus to the team that will generate more yards.
In these circumstances, the only real variables that I have to decide on are the adjustments I will be using. I have decided to use a k of 3/sqrt(1+t) where t is the week in which the game took place. The figure, therefore, should stabilize as the season progresses, which I believe mirrors reality.
The adjustment of the rating is Rating + 10*(team yards/opponent yards). I chose ten rather at random, but it really means that in the most extreme cases a team may have 5 to 10 points added to their estimated margin of victory.
The problem with a prediction model that adjusts for match ups is that it cannot be used to rank teams. In a rating system it is necessary that if A>B>C then A>C, but if we take match ups into account then if A>B>C it is still possible that C>A if A matches up poorly against C and well against B. This means that it can't be used for ranking teams, but only for predicting the winner if two teams play. I have thought up a method of getting around that, but programing it will take some time.
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 |
Subscribe to:
Post Comments (Atom)
i just got off si fan nation and they are saying sanchez will get the nod against the ducks. you like the osu huh.. we will check back after this weekend on how you did....
ReplyDeleteThanks for the update on Sanchez, and I apologize to Buckeye fans for leaving off the oh so important "the" before OSU.
ReplyDelete