The Pi-Rate Ratings

December 26, 2008

PiRate Ratings Week 17 NFL Previews: December 28, 2008

PiRate Ratings For NFL Week 17

Still Much To Be Decided

 

It seems like the end of the NFL season has come quickly this year.  Maybe it seems that way because last season coincided with the Presidential election that seemed to last forever.

 

Unfortunately, the end of this season coincides with too many holiday plans, and this preview will be abbreviated.  I will list all the playoff possibilities in this article in addition to the standings, ratings, and games.  I won’t list an in-depth game by game preview or make picks due to those time limitations.

 

The Mean Ratings (Mean)

 

Just like the PiRate Ratings, the NFL Mean Ratings are not the same as the collegiate version.  The NFL Mean Ratings consist of a dozen different calculations.  Three calculations consist of different ways to look at point differential and strength of schedule.  Five calculations look at yards gained and allowed rushing and passing and special teams play with the strength of the opponents’ rushing and passing.  Point values are assigned based on each set of data.  The remaining four ratings are my old four pro ratings from the 1970’s and 1980’s.  The 12 ratings are given equal weight, and then I take the average (mean) to get the rating.

 

The Bias Ratings (Biased)

 

The Bias Ratings consist of five of the components of The Mean Ratings.  The five ratings are not given equal weight.  The five ratings are weighted at 37.5%, 25%, 12.5%, 12.5%, and 12.5%.  I have back tested these ratings and found that this weighting gives the rating its best predictive percentage.

 

All three ratings are normalized so that 100 is average.  If I don’t mess up with the math, each of the three ratings should average 100.  The teams’ ratings show how many points above or below average they are in comparison with the rest of the league.  A rating of 107 means that team is a touchdown better than average, while a rating of 93 means that team is a touchdown weaker than average. 

 

I do not attempt to rate teams from different years.  A 107-rated team in 2008 is not the same as a 107-rated team from 1972.  We all know that due to the evolution of strength and quickness, today’s Detroit Lions would blow the 1972 Miami Dolphins off the field.

Current NFL Standings

   

 

 

 

 

 

 

 

 

 

 

 

NFC East

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

New York

12

3

0

408

274

108.60

107.65

107.11

2

Dallas

9

6

0

356

321

102.49

103.67

103.29

2

Philadelphia

8

6

1

372

283

106.53

105.48

103.26

2

Washington

8

7

0

241

269

98.55

99.31

99.83

2

   

 

 

 

 

 

 

 

 

 

 

 

NFC North

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Minnesota

9

6

0

359

314

104.06

103.81

103.64

2

Chicago

9

6

0

351

319

102.96

101.42

102.34

2

Green Bay

5

10

0

388

359

103.77

101.48

98.91

2

Detroit

0

15

0

247

486

86.86

88.16

86.27

3

   

 

 

 

 

 

 

 

 

 

 

 

NFC South

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Carolina

11

4

0

381

298

106.14

105.11

106.11

2

Atlanta

10

5

0

360

298

105.19

104.46

105.79

2

Tampa Bay

9

6

0

337

292

104.06

102.01

102.68

2

New Orleans

8

7

0

432

360

104.61

104.52

102.09

2

   

 

 

 

 

 

 

 

 

 

 

 

NFC West

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Arizona

8

7

0

393

405

97.60

97.33

99.25

3

San Francisco

6

9

0

312

357

94.23

95.55

96.42

3

Seattle

4

11

0

273

358

92.89

94.36

94.11

3

St. Louis

2

13

0

205

434

84.00

86.47

86.56

2

   

 

 

 

 

 

 

 

 

 

 

 

AFC East

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Miami

10

5

0

321

300

98.73

99.42

102.29

2

New England

10

5

0

397

309

103.21

104.76

105.46

2

New York

9

6

0

388

332

100.62

99.48

100.88

2

Buffalo

7

8

0

336

329

96.92

96.82

98.41

3

   

 

 

 

 

 

 

 

 

 

 

 

AFC North

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Pittsburgh

11

4

0

316

223

108.32

107.71

106.47

2

Baltimore

10

5

0

358

237

108.82

107.90

106.01

3

Cleveland

4

11

0

232

319

95.34

94.57

92.24

2

Cincinnati

3

11

1

188

358

92.20

93.93

93.29

2

   

 

 

 

 

 

 

 

 

 

 

 

AFC South

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Tennessee

13

2

0

375

211

110.38

109.14

108.97

2

Indianapolis

11

4

0

354

298

104.55

104.95

105.76

2

Houston

7

8

0

335

370

98.63

98.85

99.16

3

Jacksonville

5

10

0

295

340

97.86

97.78

97.59

3

   

 

 

 

 

 

 

 

 

 

 

 

AFC West

Won

 

Lost

 

Tied

Pts

Opp

Rating

Mean

Biased

HTA

Denver

8

7

0

349

396

95.68

96.24

98.05

2

San Diego

7

8

0

387

326

103.66

103.18

102.23

2

Oakland

4

11

0

232

364

91.06

92.37

93.35

2

Kansas City

2

13

0

285

424

91.49

92.05

92.17

2

   

 

 

 

 

 

 

 

 

 

 

 

 

 The Playoffs Scenarios

NFC Already in Playoffs

New York Giants: Clinched #1 Seed & home field advantage

Carolina: Clinched a playoff spot

Atlanta: Clinched a playoff spot

Arizona: Clinched West Division and will play on first weekend of the playoffs

 

NFC Scenarios

NFC EAST

DALLAS

In the playoffs as a Wildcard with:

A. A win

B. A tie plus a Chicago loss or tie and a Tampa Bay loss

C. A tie plus a Minnesota loss or tie and a Tampa Bay loss

D. A tie plus a Chicago loss and a Tampa Bay tie

E. A tie plus a Minnesota loss and a Tampa Bay tie

 

PHILADELPHIA

In the playoffs as a Wildcard with:

A. A win plus losses by Tampa Bay and Minnesota

B. A win plus losses by Tampa Bay and Chicago

 

NFC NORTH

MINNESOTA

Clinches Division with:

A. A win

B. A tie plus Chicago loss or tie

C. A Chicago loss

 

CHICAGO

Clinches Division with:

A. A win plus a Minnesota loss or tie

B. A tie plus a Minnesota loss

 

In the playoffs as a Wildcard with:

A. A win plus a Minnesota win and losses or ties by both Dallas and Tampa Bay

B. A tie plus losses by both Dallas and Tampa Bay

 

NFC SOUTH

ATLANTA has already clinched a playoff spot

Clinches Division and First Round Bye with:

A. A win plus a Carolina loss

 

CAROLINA has already clinched a playoff spot

Clinches Division and First Round Bye with:

A. A win or tie

B. An Atlanta loss or tie

 

TAMPA BAY

In the playoffs as a Wildcard with:

A. A win plus a Dallas loss or tie

B. A tie plus a Dallas loss and Minnesota loss or tie

C. A tie plus a Dallas loss and a Chicago loss or tie

D. A tie plus a Dallas tie and a Minnesota tie and a Chicago win or tie

E. A tie plus a Dallas tie and a Chicago tie and a Minnesota win or tie

 

AFC Already in Playoffs

Tennessee: Clinched #1 seed & home field advantage

Pittsburgh: Clinched division & first round bye

 

AFC Scenarios

AFC EAST

The AFC East Division Winner will play on the first weekend of the playoffs

 

MIAMI

Can clinch the Division with:

A. A win

B. A tie plus a New England loss or tie

 

Can clinch a Wildcard with:

A. A tie plus a Baltimore loss

 

NEW ENGLAND

Can clinch the Division with:

A. A win plus a Miami loss or tie

B. A tie plus a Miami loss

 

Can clinch a Wildcard with:

A. A win plus a Baltimore loss or tie

B. A tie plus a Baltimore loss

 

NEW YORK JETS

Can clinch the Division with:

A. A win plus a New England loss

 

Can clinch a Wildcard with:

A. A win plus a Baltimore loss

 

AFC NORTH

(Pittsburgh has already won the division and secured a first-round bye as the #2 seed)

 

BALTIMORE

Can clinch a Wildcard with:

A. A win

B. A tie plus a Miami loss or tie

C. A tie plus a New England loss or tie

D. A New England loss

 

AFC SOUTH

Tennessee has clinched division and the #1 seed, while Indianapolis has clinched a Wildcard

 

AFC WEST

DENVER plays At SAN DIEGO.  The winner of this game wins the Division.  It the game ends in a tie, then Denver wins the Division.  The Division winner will play on the first weekend of the playoffs.

 

If The Season Ended Today

NFC Seedings

1. New York Giants

2. Carolina

3. Minnesota

4. Arizona

5. Atlanta

6. Dallas

 

Dallas would play at Minnesota and Atlanta would play at Arizona.  The higher remaining seed would then play at Carolina and the weaker remaining seed would play at the New York Giants

 

AFC Seedings

1. Tennessee

2. Pittsburgh

3. Miami

4. Denver

5. Indianapolis

6. Baltimore

 

Baltimore would play at Miami and Indianapolis would play at Denver.  The higher remaining seed would then play at Pittsburgh and the weaker remaining seed would play at Tennessee

 

Here Is My Best Guess As To How The Season Will End

 

In the NFC, Philadelphia will take advantage of home field advantage and a revenge factor and defeat Dallas.

 

Atlanta will dismiss St. Louis with ease.

 

Carolina will stumble at New Orleans as Drew Brees finishes off one of the best passing seasons ever.

 

Tampa Bay handles Oakland at home but not by much.

 

Minnesota struggles but hangs up to beat the New York Giants after the Giants pull their starters in the second half.

 

Chicago falls at Houston as the Texans finish 8-8.

 

That would leave Atlanta and Minnesota as division champions and Tampa Bay as the final Wildcard.  Dallas, Philadelphia, and Chicago would be eliminated.

 

In the AFC, Miami will take advantage of Brett Favre’s shoulder problems and take out the Jets at the Meadowlands.

 

New England will go to Buffalo and put up some big numbers in a win, looking like the true dark horse Super Bowl contender (but only until the Baltimore game ends).

 

Baltimore will methodically defeat Jacksonville in a rough game and ruin the weekend for fans in New England.

 

San Diego will take some revenge against Denver and claim the West Division title.

 

That would leave Miami and San Diego as division champions and Baltimore as the final Wildcard team.

 

Note: Weather forecasts and odds are those as of Friday, December 26, 2008, 12 Noon EST

 

You will now see multiple numbers given in the Vegas line and Ov/Un.  I am listing the range given by the different books in Vegas and offshore as of 12 Noon EST Friday, so you can use the one that best meets your needs.  Remember though, if you use parlays and teasers, you must use the same source.  You cannot play a parlay using the odds from different books.  There are no picks this week due to lack of time to study the games..

 

I leave it to you to find out the book in question regarding the spreads.  Generally, some of the big ones in Vegas are: Hilton, Caesar’s-Harrah’s, MGM Mirage, Stations, Leroy’s, Wynn, Bellagio, Mandalay Bay, and The Palms.  Some of the large offshore books include: BetUs, Bodog, Sportsbook, BetJamaica, and Pinnacle.

 

Average Simulation Scores for each game are now rounded to nearest whole number.

 

Note: The ratings and the simulations do not take into account the fact that some teams will not play their regulars much if at all this week.

 

NFL PiRate, Mean, and Bias Ratings-Week 17

 

Kansas City (2-13-0) at Cincinnati (3-11-1)

Time:           1:00 PM EST

TV:               CBS

Forecast:     Partly cloudy, strong wind, temperature in the mid 40’s

 

PiRate:                Cincinnati by 3               

Mean:                  Cincinnati by 4

Bias:                    Cincinnati by 3

 

Vegas:               Cincinnati by 2.5 to 3

Ov/Un:               37.5 to 38.5

 

100 Sims:           Cincinnati 78  Kansas City 22

Avg Sim Score:  Cincinnati 29  Kansas City 22

Outlier 1a Sim:  Cincinnati 40  Kansas City 21

Outlier 1b Sim:  Kansas City 24  Cincinnati 14

 

 

St. Louis (2-13-0) at Atlanta (10-5-0)

Time:           1:00 PM EST

TV:               Fox

Forecast:     Dome

 

PiRate:                Atlanta by 23

Mean:                  Atlanta by 20

Bias:                    Atlanta by 21

 

Vegas:               14 to 15.5  

Ov/Un:               44 to 44.5

 

100 Sims:           Atlanta 98  St. Louis 2

Avg Sim Score:  Atlanta 33  St. Louis 11

Outlier 1a Sim:  Atlanta 52  St. Louis 0

Outlier 1b Sim:  St. Louis 24  Atlanta 21

 

 

New England (10-5-0) at Buffalo (7-8-0)

Time:           1:00 PM EST

TV:               CBS

Forecast:     Rain Showers, Very Strong Wind, Unseasonably mild temperature near 50

 

PiRate:                New England by 8

Mean:                  New England by 10

Bias:                    New England by 9

 

Vegas:               6 to 7   

Ov/Un:               40 to 41

 

100 Sims:           New England 73  Buffalo 27

Avg Sim Score:  New England 34  Buffalo 28

Outlier 1a Sim:  New England 45  Buffalo 23

Outlier 1b Sim:  Buffalo 31  New England 20

 

 

Detroit (0-15-0) at Green Bay (5-10-0)

Time:           1PM EST

TV:               Fox

Forecast:     Light snow ending after game starts, moderate wind, temperature in low 20’s

 

PiRate:                Green Bay by 19

Mean:                  Green Bay by 15

Bias:                    Green Bay by 15

 

Vegas:               Green Bay by 10 to 11.5      

Ov/Un:               42.5 to 43

 

100 Sims:           Green Bay 64  Detroit 35  1 Tie

Avg Sim Score:  Green Bay 33  Detroit 29

Outlier 1a Sim:  Green Bay 24  Detroit 0

Outlier 1b Sim:  Detroit 38  Green Bay 30

 

 

Tennessee (13-2-0) at Indianapolis (11-4-0)

Time:           1PM EST

TV:               CBS

Forecast:     Dome should be closed

 

PiRate:                Tennessee by 4

Mean:                  Tennessee by 2

Bias:                    Tennessee by 1

 

Vegas:                Tennessee by 3

Ov/Un:               38 to 38.5

 

100 Sims:           Indianapolis 58  Tennessee 42

Avg Sim Score:  Indianapolis 25  Tennessee 23

Outlier 1a Sim:  Indianapolis 28  Tennessee 13

Outlier 1b Sim:  Tennessee 24  Indianapolis 10

 

 

Chicago (9-6-0) at Houston (7-8-0)

Time:           1PM EST

TV:               Fox

Forecast:     Mostly sunny, light wind, temperature around 60

 

PiRate:                Chicago by 1

Mean:                  Tossup

Bias:                    Tossup

 

Vegas:               Houston by 2.5 to 3  

Ov/Un:               46 to 46.5

 

100 Sims:           Houston 51  Chicago 49

Avg Sim Score:  Houston 27  Chicago 27

Outlier 1a Sim:  Houston 37  Chicago 20

Outlier 1b Sim:  Chicago 32  Houston 17

 

 

Oakland (4-11-0) at Tampa Bay (9-6-0)

Time:           1:00 PM EST

TV:               CBS

Forecast:     Sunny, light wind, temperature near 80

 

PiRate:                Tampa Bay by 15

Mean:                  Tampa Bay by 12

Bias:                    Tampa Bay by 11

 

Vegas:               Tampa Bay by 12.5 to 14

Ov/Un:               39 to 39.5

 

100 Sims:           Tampa Bay 89  Oakland 11

Avg Sim Score:  Tampa Bay 26  Oakland 12

Outlier 1a Sim:  Tampa Bay 38  Oakland 7

Outlier 1b Sim:  Oakland 27  Tampa Bay 21

 

 

Cleveland (4-11-0) at Pittsburgh (11-4-0)

Time:           1:00PM EST

TV:               CBS

Forecast:     Rain showers, strong wind, temperature in low to mid 50’s

 

PiRate:                Pittsburgh by 15

Mean:                 Pittsburgh by 15

Bias:                    Pittsburgh by 16

 

Vegas:                Pittsburgh by 10.5 to 11.5

Ov/Un:               31.5 to 33

 

100 Sims:           Pittsburgh 97  Cleveland 3

Avg Sim Score:  Pittsburgh 29  Cleveland 11

Outlier 1a Sim:  Pittsburgh 49  Cleveland 14

Outlier 1b Sim:  Cleveland 13  Pittsburgh 10 (2 other 3-point wins)

 

 

New York Giants (12-3-0) at Minnesota (9-6-0)

Time:           1:00 PM EST

TV:               Fox

Forecast:     Dome

 

PiRate:                Giants by 3

Mean:                 Giants by 2

Bias:                    Giants by 1

 

Vegas:                Minnesota by 7 to 7.5

Ov/Un:               42

 

100 Sims:           Giants 54  Minnesota 46

Avg Sim Score:  Giants 23  Minnesota 20

Outlier 1a Sim:  Giants 31  Minnesota 14

Outlier 1b Sim:  Minnesota 27  Giants 17

 

 

Carolina (11-4-0) at New Orleans (8-7-0)

Time:           1:00PM EST

TV:               Fox

Forecast:     Dome

 

PiRate:                Tossup

Mean:                  New Orleans by 1

Bias:                    Carolina by2

 

Vegas:               Carolina by 2.5 to 3

Ov/Un:               51.5 to 52.5

 

100 Sims:           New Orleans 55  Carolina 45

Avg Sim Score:  New Orleans 33  Carolina 32

Outlier 1a Sim:  New Orleans 44  Carolina 27

Outlier 1b Sim:  Carolina 35  New Orleans 20

 

 

Jacksonville (5-10-0) at Baltimore (10-5-0)

Time:           4:15PM EST

TV:               CBS

Forecast:     Showers, moderate wind, temperature dropping from around 60 to the mid 50’s

 

PiRate:                Baltimore by 14

Mean:                 Baltimore by 13

Bias:                   Baltimore by 11

 

Vegas:               Baltimore by 12 to 13.5

Ov/Un:               36 to 36.5

 

100 Sims:           Baltimore 83  Jacksonville 16  1 Tie

Avg Sim Score:  Baltimore 25  Jacksonville 13

Outlier 1a Sim:  Baltimore 24  Jacksonville 0

Outlier 1b Sim:  Jacksonville 20  Baltimore 14

 

 

Dallas (9-6-0) at Philadelphia (8-6-1)

Time:           4:15 PM EST

TV:               Fox

Forecast:     Rain showers, moderate wind, temperature falling through the 50’s

 

PiRate:                Philadelphia by 6

Mean:                 Philadelphia by 4

Bias:                   Philadelphia by 2

 

Vegas:                Philadelphia by 0 to 2

Ov/Un:               42.5 to 43

 

100 Sims:           Philadelphia 61  Dallas 39

Avg Sim Score:  Philadelphia 27  Dallas 22

Outlier 1a Sim:  Philadelphia 41  Dallas 24

Outlier 1b Sim:  Dallas 34  Philadelphia 24

 

 

Miami (10-5-0) at New York Jets (9-6-0)

Time:           4:15 PM EST

TV:               CBS

Forecast:     Rain showers, moderate wind, temperature dropping from the mid 50’s to mid 40’s

 

PiRate:                Jets by 4

Mean:                 Jets by 2

Bias:                   Jets by 1

 

Vegas:                Jets by 2 to 3   

Ov/Un:               41.5 to 42.5

 

100 Sims:           Miami 50  Jets 50

Avg Sim Score:  Miami 25  Jets 25

Outlier 1a Sim:  Miami 27  Jets 14

Outlier 1b Sim:  Jets 20  Miami 12

 

 

Seattle (4-11-0) at Arizona (8-7-0)

Time:           4:15 PM EST

TV:               Fox

Forecast:     Sunny, light wind, temperature in low 60’s

 

PiRate:                Arizona by 8

Mean:                  Arizona by 6

Bias:                    Arizona by 8

 

Vegas:               Arizona by 6 to 6.5

Ov/Un:               45 to 46

 

100 Sims:           Arizona 83  Seattle 17

Avg Sim Score:  Arizona 33  Seattle 23

Outlier 1a Sim:  Arizona 38  Seattle 16

Outlier 1b Sim:  Seattle 24  Arizona 20

 

 

Washington (8-7-0) at San Francisco (6-9-0)

Time:           4:15PM EST

TV:               Fox

Forecast:     Showers possible, light wind, temperature in the mid 50’s

                    

PiRate:                Washington by 1

Mean:                  Washington by 1

Bias:                    Tossup

 

Vegas:               San Francisco by 3

Ov/Un:               37 to 37.5

 

100 Sims:           San Francisco 56  Washington 44

Avg Sim Score:  San Francisco 23  Washington 21

Outlier 1a Sim:  San Francisco 27  Washington 14

Outlier 1b Sim:  Washington 21  San Francisco 13

 

 

Denver (8-7-0) at San Diego (7-8-0)

Time:           8:15PM EST

TV:               NBC

Forecast:     Partly cloudy, light wind, temperature falling from mid to low 60’s

 

PiRate:                San Diego by 10

Mean:                  San Diego by   9

Bias:                    San Diego by   6

 

Vegas:                San Diego by 7.5 to 9.5

Ov/Un:               50 to 51

 

100 Sims:           San Diego 59  Denver 41

Avg Sim Score:  San Diego 34  Denver 30

Outlier 1a Sim:  San Diego 51  Denver 27

Outlier 1b Sim:  Denver 45  San Diego 31

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