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10/19 Football  Lake City vs Lewiston
10/19 Football  Madison vs Skyline
10/19 Football  Meridian vs Skyview
10/19 Football  Nampa vs Vallivue
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10/12 Football  Middleton vs Vallivue
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  IdahoSports.com Football RPI

Find out where your team falls this week. This information is put together by IdahoSports.com and Dayton Robison.

By: IS Staff
Published: 10/9/2018 11:17:05 PM
 

The IdahoSports.com Football RPI is a projection of the Idaho RPI and uses the same formula that the Idaho High School Activities Association will use for the 2018 football season. The difference between the two is that the IHSAA formula and rankings use information solely from MaxPreps, while the rankings posted here use scores and records from IdahoSports.com. These scores are found, checked, and recorded by IdahoSports.com. Scores and records of out-of-state opponents are found, checked, and recorded by Dayton Robison, who conducts the 'Robison RPI' and the IdahoSports.com Football RPI. 

IdahoSports.com Football RPI Methodology

The IdahoSports.com Football Ratings Percentage Index, or RPI for short, is a ratings system comprised of three components:
- A team's own winning percentage
- A team's opponents average winning percentage
- A team's opponents' opponents average winning percentage. 

Each team receives a composite score based on these factors, which are each weighted as follows:
- Own winning percentage: 30% of composite score
- Opponents winning percentage: 40%
- Opponents' opponents winning percentage: 30%

Margin of victory is not a factor at all in the RPI. A win against a team one classification higher is worth 15% more, while a win against a team one classification lower is worth 15% less. This deduction only applies on the second contest against a smaller opponent - the first game against a smaller opponent is counted as a same classification game.

The IHSAA's Idaho RPI will be used as follows for the 2018 football season:
- 3A: will be used to decide the At-Large berth
- 2A: will be used to determine the three At-Large berths and, following the regional round, will seed the state quarterfinals.

The Idaho RPI will not be used at all in 5A, 4A, 1AD1, and 1AD2.


Legend
Composite: The total RPI score for a team
WP: A team's own winning percentage
OWP: A team's opponents average winning percentage
OOWP: A team's opponents' opponents average winning percentage


Week 7 IdahoSports.com Football RPI
Results through Oct. 8, 2018


Class 5A

Rank Team Composite WP OWP OOWP
1 Coeur d'Alene 0.75813 1.00000 0.72639 0.55859
2 Highland (Poc) 0.65402 0.81429 0.61224 0.54947
3 Madison 0.64022 0.81429 0.54048 0.59915
4 Rocky Mountain 0.63810 1.00000 0.45238 0.52381
5 Mountain View 0.59830 0.71429 0.59524 0.48639
6 Capital 0.58776 0.71429 0.57143 0.48299
7 Rigby 0.58324 0.38571 0.76071 0.54415
8 Borah 0.55136 0.71429 0.45238 0.52041
9 Lewiston 0.55072 0.65000 0.47857 0.54763
10 Eagle 0.52041 0.57143 0.50000 0.49660
11 Skyview 0.50000 0.57143 0.42857 0.52381
12 Post Falls 0.46392 0.47500 0.44111 0.48324
13 Lake City 0.46317 0.38571 0.50714 0.48198
14 Meridian 0.46054 0.42857 0.45238 0.50340
15 Centennial 0.42075 0.28571 0.45238 0.51361
16 Thunder Ridge 0.38422 0.00000 0.56429 0.52835
17 Boise 0.36190 0.00000 0.54762 0.47619
18 Timberline (Boise) 0.36088 0.00000 0.54762 0.47279

 

Class 4A

Rank Team Composite WP OWP OOWP
1 Hillcrest 0.69358 0.87857 0.67381 0.53494
2 Middleton 0.62819 0.85714 0.49405 0.57810
3 Nampa 0.62524 0.85714 0.52738 0.52381
4 Bishop Kelly 0.62303 0.85714 0.55119 0.48469
5 Century 0.61185 0.71429 0.60561 0.51774
6 Skyline 0.59095 0.75714 0.45289 0.60884
7 Minico 0.58704 1.00000 0.35238 0.48696
8 Idaho Falls 0.58123 0.61429 0.57500 0.55649
9 Twin Falls 0.54128 0.71429 0.40595 0.54870
10 Blackfoot 0.52750 0.45000 0.60952 0.49565
11 Kuna 0.51204 0.45000 0.57143 0.49490
12 Vallivue 0.49554 0.71429 0.31310 0.52007
13 Bonneville 0.49134 0.59286 0.33690 0.59575
14 Columbia 0.48347 0.42857 0.51071 0.50204
15 Shelley 0.47849 0.28571 0.57857 0.53783
16 Mountain Home 0.47339 0.42857 0.51190 0.46686
17 Pocatello 0.45736 0.28571 0.54405 0.51344
18 Preston 0.45007 0.42857 0.45595 0.46373
19 Lakeland 0.44972 0.52500 0.37563 0.47324
20 Burley 0.43501 0.28571 0.53095 0.45639
21 Ridgevue 0.42806 0.28571 0.50357 0.46973
22 Moscow 0.42434 0.26429 0.51536 0.46303
23 Jerome 0.39859 0.42857 0.31429 0.48101
24 Sandpoint 0.39705 0.14286 0.51667 0.49174
25 Wood River 0.39140 0.16667 0.53611 0.42318
26 Emmett 0.36141 0.14286 0.45238 0.45867
27 Caldwell 0.35320 0.00000 0.52381 0.47891
28 Canyon Ridge 0.32764 0.00000 0.52738 0.38895

 

Class 3A

Rank Team Composite WP OWP OOWP
1 Sugar-Salem 0.67806 0.85833 0.61083 0.58741
2 Homedale 0.66702 0.95714 0.50976 0.58656
3 Fruitland 0.65345 0.50000 0.91694 0.45558
4 Kimberly 0.62010 0.92143 0.40929 0.59985
5 Marsh Valley 0.57534 0.69286 0.48738 0.57510
6 South Fremont 0.56636 0.61667 0.49806 0.60712
7 Gooding 0.53652 0.85714 0.24881 0.59952
8 Priest River 0.52854 0.30833 0.75132 0.45170
9 Weiser 0.51933 0.71429 0.37143 0.52158
10 Teton 0.51576 0.28571 0.65905 0.55476
11 Timberlake 0.50419 0.63893 0.39119 0.52012
12 American Falls 0.49538 0.30833 0.58556 0.56219
13 Snake River 0.46812 0.16667 0.68111 0.48557
14 Filer 0.45609 0.12143 0.74190 0.40968
15 Kellogg 0.42126 0.20000 0.57317 0.43999
16 Parma 0.36364 0.14286 0.46429 0.45024
17 Bonners Ferry 0.34897 0.14286 0.38095 0.51243
18 Buhl 0.34327 0.00000 0.54528 0.41719
19 Payette 0.30506 0.00000 0.47571 0.38259

 

Class 2A

Rank Team Composite WP OWP OOWP
1 Declo 0.77251 1.12500 0.61139 0.63486
2 Grangeville 0.70518 1.13500 0.47381 0.58385
3 West Side 0.69007 1.02500 0.54806 0.54448
4 North Fremont 0.66248 1.05000 0.42250 0.59493
5 McCall-Donnelly 0.62427 0.66667 0.71292 0.46367
6 West Jefferson 0.59969 0.69167 0.58778 0.52360
7 St. Maries 0.59885 0.82143 0.49851 0.51006
8 Cole Valley Christian 0.58217 0.85833 0.45333 0.47778
9 Aberdeen 0.57663 0.52500 0.66778 0.50673
10 New Plymouth 0.55637 0.69167 0.47250 0.53290
11 Firth 0.55248 0.60000 0.56000 0.49494
12 Ririe 0.51348 0.50000 0.51556 0.52418
13 Melba 0.51232 0.52500 0.51028 0.50236
14 Malad 0.43716 0.28571 0.53619 0.45658
15 Soda Springs 0.42880 0.33333 0.44333 0.50489
16 Orofino 0.42482 0.35833 0.34667 0.59552
17 Nampa Christian 0.42080 0.19167 0.53569 0.49674
18 Wendell 0.40757 0.55000 0.20444 0.53596
19 Salmon 0.39574 0.16667 0.46972 0.52618
20 Marsing 0.38204 0.19167 0.46333 0.46401
21 Bear Lake 0.36236 0.14286 0.40952 0.51896

 

Class 1AD1

Rank Team Composite WP OWP OOWP
1 Oakley 0.69221 0.80833 0.68875 0.58072
2 Challis 0.67958 0.80833 0.65000 0.59025
3 Valley 0.66927 0.80833 0.67167 0.52701
4 Prairie 0.63843 0.83333 0.48333 0.65032
5 Idaho City 0.62790 0.97000 0.49950 0.45701
6 Raft River 0.60469 0.60000 0.57400 0.65030
7 Lapwai 0.59392 0.66667 0.56167 0.56417
8 Grace 0.59324 0.60000 0.66317 0.49324
9 Wilder 0.57866 0.78333 0.48333 0.50108
10 Kamiah 0.56147 0.83333 0.27500 0.67156
11 Clearwater Valley 0.53116 0.80833 0.25833 0.61776
12 Potlatch 0.51809 0.40000 0.71400 0.37495
13 Glenns Ferry 0.50578 0.42857 0.53321 0.54640
14 Butte County 0.45641 0.37000 0.43400 0.57269
15 Troy 0.43084 0.16667 0.66125 0.38780
16 Genesee 0.42081 0.00000 0.75000 0.40270
17 Rimrock 0.41401 0.33333 0.44264 0.45652
18 Notus 0.40477 0.30833 0.41708 0.48480
19 Wallace 0.34275 0.16667 0.39292 0.45193

 

Class 1AD2

Rank Team Composite WP OWP OOWP
1 Carey 0.65328 1.00000 0.48278 0.53389
2 Deary 0.60954 0.80000 0.46517 0.61157
3 Kendrick 0.60645 1.05000 0.26389 0.61963
4 Lighthouse Christian 0.60076 0.85714 0.49048 0.49141
5 Dietrich 0.56466 0.71429 0.49952 0.50188
6 Garden Valley 0.55970 0.52500 0.60125 0.53901
7 Murtaugh 0.55309 0.71429 0.47095 0.50142
8 North Gem 0.53202 0.52500 0.51667 0.55951
9 Tri-Valley 0.51473 0.43000 0.60600 0.47776
10 Clark Fork 0.51209 0.66667 0.40306 0.50290
11 Mackay 0.51144 0.42857 0.56571 0.52195
12 Salmon River 0.50610 0.52500 0.54333 0.43756
13 Camas County 0.50253 0.40000 0.58667 0.49287
14 Lewis County 0.49913 0.20000 0.84800 0.33309
15 Kootenai 0.48052 0.66000 0.35000 0.47508
16 Hagerman 0.46102 0.33333 0.51944 0.51082
17 Mullan 0.43488 0.25000 0.60250 0.39628
18 Rockland 0.39458 0.35833 0.36611 0.46880
19 Horseshoe Bend 0.38831 0.35833 0.36208 0.45327
20 Hansen 0.37418 0.16667 0.49167 0.42505
21 Castleford 0.36964 0.14286 0.51381 0.40418
22 Cascade 0.34337 0.20000 0.33600 0.49657
23 Clark-Watersprings 0.33518 0.00000 0.46167 0.50171
24 Lakeside 0.30194 0.00000 0.45300 0.40247
25 Council 0.30176 0.00000 0.44000 0.41920



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