Iowa high school football playoffs: Official list of 2018 qualifiers

For 96 Iowa high school football teams, a new season begins next Friday.

The Iowa High School Athletic Association released the official list of 2018 playoff qualifiers after the final week of the regular season late Friday night.

The brackets were released early Saturday morning.

It's the first year of a new qualifying system in which only district champions earned automatic bids. The rest of the field was determined using RPI (Ratings Percentage Index).

Here's how it works:

• Each class has 16 qualifiers.

• District champions are automatic qualifiers.

• The rest of the playoff field is determined by outcomes in all nine games, not just district games.

• At-large qualifiers were determined by a Ratings Percentage Index (RPI formula).

And here are the qualifiers with teams' records and RPIs.

Class 4A

District champions

1. Ankeny Centennial (9-0, .6955)

2. West Des Moines Valley (9-0, .6910)

3. Cedar Falls (9-0, .6830)

4. Iowa City West (8-1, .6696)

5. Bettendorf (8-1, .6627)

6. Waukee (7-2, .6423)

7. West Des Moines Dowling (7-2, .6420)

At-large bids

8. Johnston (7-2, .6217)

9. Cedar Rapids Prairie (7-2, .6151)

10. Fort Dodge (7-2, .6015)

11. Pleasant Valley (5-4, .5708)

12. Urbandale (6-3, .5660)

13. Cedar Rapids Kennedy (6-3, .5598)

14. Indianola (6-3, .5578)

15. Ankeny (5-4, .5477)

16. Southeast Polk (4-5, .5398)

First 4 Out: Ames (5-4, .5213), Muscatine (5-4, .5125), Sioux City East (5-4, .5120), Davenport North (5-4, .5079)

Complete RPI standings

Class 3A

District champions

1. Sergeant Bluff-Luton (8-1, .7214)

2. Lewis Central (9-0, .6932)

3. Cedar Rapids Xavier (9-0, .6917)

4. Solon (9-0, .6835)

5. North Scott (8-1, .6825)

6. Decorah (7-2, .6643)

7. Oskaloosa (8-1, .6583)

15. Norwalk (6-3, .5801)

18. Carroll (6-3, .5451)

At-large bids

8. Waverly-Shell Rock (8-1, .6552)

9. Clear Creek Amana (8-1, .6454)

10. Harlan (7-2, .6447)

11. Spencer (7-2, .6331)

12. Pella (8-1, .6277)

13. Western Dubuque (7-2, .6276)

14. Sioux City Heelan (7-2, .6221)

First 4 Out: Washington (6-3, .5766), Denison-Schleswig (5-4, .5573), Center Point-Urbana (5-4, .5412), West Delaware (5-4, .5405)

Complete RPI standings

Class 2A

District champions

1. Monroe PCM (9-0, .7080)

2. Boyden-Hull/Rock Valley (8-1, .6593)

3. Waukon (8-1, .6502)

4. Benton Community (8-1, .6433)

7. Southeast Valley (7-2, .6277)

8. West Marshall (7-2, .6185)

13. Crestwood (6-3, .5763)

15. Union Community (6-3, .5703)

16. West Liberty (6-3, .5691)

17. Williamsburg (6-3, .5628)

18. Carroll Kuemper (5-4, .5461)

At-large bids

5. Algona (8-1, .6368)

6. Chariton (8-1, .6355)

9. Spirit Lake (7-2, .6013)

10. Greene County (8-1, .5892)

11. OA-BCIG (7-2, .5847)

First 4 Out: Clear Lake (7-2, .5765), Waterloo Columbus (7-2, .5712), Tipton (6-3, .5410), Central Lyon/George-Little Rock (5-4, .5370)

Complete RPI standings

Class 1A

District champions

1. South Central Calhoun (9-0, .6852)

2. Bellevue (9-0, .6845)

3. Interstate 35 (9-0, .6842)

4. Van Meter (9-0, .6680)

6. Dike-New Hartford (9-0, .6399)

7. Wilton (8-1, .6344)

9. West Sioux (8-1, .6298)

10. Osage (7-2, .6104)

11. Treynor (8-1, .5998)

At-large bids

5. West Branch (8-1, .6620)

8. Pella Christian (6-3, .6325)

12. West Lyon (7-2, .5957)

13. Mediapolis (8-1, .5871)

14. Mount Ayr (7-2, .5833)

15. South Hamilton (7-2, .5715)

16. Sumner-Fredericksburg (7-2, .5633)

First 4 Out: Woodward-Granger (5-4, .5525), Cascade (5-4, .5496), Underwood (5-4, .5382), East Sac County (5-4, .5374)

Complete RPI standings

Class A

District champions

1. Hudson (9-0, .6972)

2. Algona Garrigan (9-0, .6864)

3. Sloan Westwood (8-1, .6725)

4. Avoca AHSTW (9-0, .6481)

5. Durant (7-2, .6370)

8. Hinton (8-1, .6097)

9. Edgewood-Colesburg (8-1, .6082)

14. Mason City Newman (7-2, .5871)

15. Alta-Aurelia (7-2, .5832)

18. Lynnville-Sully (7-2, .5662)

At-large bids

6. North Tama (8-1, .6120)

7. BGM (8-1, .6113)

10. Akron-Westfield (7-2, .6072)

11. Wapsie Valley (7-2, .6032)

12. Highland (7-2, .6010)

13. West Hancock (7-2, .6000)

First 4 Out: Sioux Central (7-2, .5823), Belmond-Klemme (7-2, .5790), Grundy Center (5-4, .5592), Saint Ansgar (6-3, .5569)

Complete RPI standings

8-Player

District champions

1. Iowa Valley (9-0, .6711)

2. Ar-We-Va (9-0, .6699)

3. Exira-EHK (8-1, .6548)

4. Turkey Valley (8-1, .6521)

5. Don Bosco (8-1, .6501)

6. Southeast Warren (10-0, .6478)

7. Fremont-Mills (8-1, .6433)

10. Rockford (8-1, .6267)

11. Northwood-Kensett (8-1, .6264)

12. Central City (8-1, .6229)

13. Midland (9-1, .6200)

19. Gladbrook-Reinbeck (7-2, .5762)

At-large bids

8. Newell-Fonda (8-1, .6348)

9. New London (8-1, .6340)

14. Lenox (7-2, .6025)

15. Stanton (7-2, .5939)

First 4 Out: East Mills (7-2, .5905), HLV (7-2, .5843), Audubon (6-3, .5830), Anita CAM (6-3, .5667)

Complete RPI standings