RPI

[TresNorthwest]

Does anyone know if/how this stat will be made publicly available? Like on the IAHSAA standings page or on quikstats. It seems like it'll pretty difficult to keep updated

 

[ISUChip]

https://www.iahsaa.org/wp-content/uploads/2018/01/1.24-RPI-Football-FAQs.pdf

Where will be the RPI standings be published?
The IHSAA’s official RPI standings will be published on the football page at www.iahsaa.org. Any RPI data published elsewhere is unofficial and should be viewed as such.

How often will the RPI standings be published?
The IHSAA’s football RPI standings will be published for the first time on Monday of Week 4 of the 2018 regular season.

 

[KidSilverhair]

I've whipped up a spreadsheet to track RPI for 3A myself, but ... it took some work to do, it requires me to put in all the won-loss records for every opponent for every 3A team, and considering the state will start publishing the official numbers in Week 4 (which is when it'd actually start meaning something anyway), there's not a whole lot of point in putting in the effort for the first three weeks.

I'm still going to do it, though, cause I'm a massive nerd when it comes to that stuff.

 

[TresNorthwest]

I'm still going to do it, though, cause I'm a massive nerd when it comes to that stuff.

Looks like we are on the same page then. Lol

 

[screwloose]

My spreadsheets have inspired Kid over the years!

 

[TresNorthwest]

Does anyone have an idea what a benchmark RPI number would look like to get into the playoffs as a wildcard? Really nothing to base it off of as of now.

 

[ISUChip]

An RPI cutoff is tough to guess at this point. It will probably take a minimum 7-2 record to even be in the running for an at-large spot. And that assumes all 9 spots will be available. But, there's the variable of ties for district championships whittling down the number of at-large spots.

Edit: With a dozen fewer teams in 4A than any other class, the contention pool likely includes 6-3.

 

[mthawkeyes]

RPI is not very good after three weeks. If you've won games, your current SOS is weak because your opponents have lost, and if you've lost games, your current SOS is strong because your opponents have won.

Indianola is trying to go 7-2 (by scheduling weaker teams and boost their SOS by playing 3A Norwalk). Southeast Polk ran the gauntlet their first three games. If they win District 2, they'll obviously be in. But even if they would lose one more game (presumably to Centennial) they might well end up with a better RPI at 5-4 than a 7-2 Indianola and jump them for a playoff spot. (And I would argue rightly so.)

My spreadsheet with RPI based on current record and SOS over the entire season (not just games to date) looks like this:
1. Ankeny Centennial .623
2. Indianola .607
3. Bettendorf .602
4. Marshalltown .596
5. Cedar Falls .580
6. Waukee .576
7. Sioux City West .572
8. WDM Valley .571
9. Muscatine .567
10. Fort Dodge .564
11. Johnston .556
12. Dowling Catholic .542
13. Iowa City West .536
14. Cedar Rapids Kennedy .530
15. Des Moines East .526
16. Cedar Rapids Prairie .515
17. Davenport West .513
18. Davenport North .501
19. Southeast Polk .491
20. Ottumwa .491
21. Des Moines Lincoln .490
22. Waterloo West .486
23. Davenport Central .485
24. Ames .479
25. Dubuque Hempstead .476
26. Des Moines Roosevelt .470
27. Burlington .470
28. Mason City .466
29. CB Thomas Jefferson .465
30. Iowa City High .462
31. Urbandale .462
32. Dubuque Senior .458
33. Des Moines North .443
34. Sioux City East .437
35. Cedar Rapids Washington .437
36. Pleasant Valley .432
37. Linn-Mar .431
38. Cedar Rapids Jefferson .408
39. Sioux City North .395
40. Ankeny .393
41. CB Abraham Lincoln .379
42. Des Moines Hoover .355

 

[mthawkeyes]

You can also see some teams ranked highly in this format because of a good record against poor non-district competition and a strong future SOS (which is likely to hit them hard when they enter district play).

 

[SimpsonStorm]

I included opponents W/L for all games and the opponents opponents W/L for all games as well and I get similar standings. Just different RPI numbers. Maybe I am doing something wrong? Here is what I have for top 20:

1. Centennial - .688
2. Indianola - .681
3. Bettendorf - .671
4. Marshalltown - .662
5. Cedar Falls - .656
6. Muscatine - .646
7. Valley - .640
8. Waukee - .590
9. SC West - .588
10. Fort Dodge - .581
11. Johnston - .576
12. Dowling - .571
13. IC West - .559
14. CR Kennedy - .552
15. DM East - .548
16. CR Prairie - .544
17. Dav North - .532
18. DM Lincoln - .532
19. Wat West - .527
20. Dav West - .466

 

[atomic87]

Looks like SimpsonStorm's numbers match up pretty well with the state's

 

[SimpsonStorm]

I made a few mistakes. Putting SCE on one schedule instead of SCW and SCN instead of someone else. My numbers are spot on now. I will try and update each week.

 

[SimpsonStorm]

Does anyone know if the state is seeding 1-16 using this formula (making sure district winners are 1-7 of course)?

 

[CF_93]

No clue. I was actually just wondering that myself, and exactly how they will determine home field the first two rounds. Will RPI determine home field? Or merely be a tiebreaker, with home field going to district winners first? I could see logic in either way they go, unless they opt to go back to the wretched alphabetical method.

 

[Iafootballfan]

What happened to the poster who generated spreads every week?

 

[screwloose]

If I had a guess, I would think the district champions will all be home teams in the First Round. Their opponents will be non-district champion qualifiers, who are geographically adaptable, avoiding rematches if at all possible. The Second Round/Quarterfinals will likely be done the same way. I'd suspect that the RPI will be used as the home-field tiebreaker, in both Quarterfinal and the First Round wild card pairing games. But make no mistake about it, the IHSAA is not going to seed it through and pay schools to travel four or five hours across the state, even on a Friday night, for the sake of a bracket. Geography will be implemented.