I tend to point to one simple fact that many don’t recognize when talking about the construction of the IHSA playoffs.
I’ve uttered the phrase “small school results affect the big schools and big school results affect the small school results” an infinite number of times in the past, but I can’t think of a better tangible example than what happened in Week 8.
Two Class 1A schools (Nokomis and Deer Creek Mackinaw) that a grand majority of larger school fans might have trouble locating on a map collected surprising wins in Week 8 to keep them from joining the dreaded five-loss group.
The wins should be enough to lift both schools into the field of 256 teams provided they both win games in Week 9.
But from a projection stand point, those two teams who are both Class 1A schools, needed spots made for them in the projected field.
Sometimes spots are claimed by teams in the field only to have another team falter in the same classification to basically make it a clean swap.
But there were no swaps in 1A this week, only new entrants.
And those two new entrants changed every class bubble from Class 1A to Class 8A.
The bubbles have been a fascinating watch this season because of the power programs that reside on them. To this point, those power programs have settled into the smaller of the two classifications that they could potential reside in.
All of them moved up. Bloomington Central Catholic went from Class 1A to Class 2A, Wilmington from Class 2A to Class 3A, Morris from Class 4A to Class 5A and Providence from Class 5A to 6A.
They all still reside on the fence, but now on the other side of where they did a week ago.
There’s still plenty of ways that could move back to their previous designations because if we’ve learned anything by now, each move in every class can affect the other ones.
A quick look at the numbers heading into Week 9 before we discuss the probability of four-win teams making the field.
• There are 147 clinched berths by teams that have six wins or more or have clinched a conference title with a league with at least six participating teams. Note: There is one team in the state, Noble/Rauner, who by the Chicago Public League’s additional rules for some qualifiers has not clinched its berth despite having six wins.
• 219 teams have at least five wins and are playoff eligible.
• There are 69 four-win teams that can still reach five victories. There are another four Chicago Public League teams that by additional rules mandated by the CPL cannot qualify for the playoffs even if they reach five victories. Those schools are King, Sullivan, Noble/Golder and Rowe/Clark.
Of that group of 69 teams the projection has 36 of those four-win teams losing. All but two of those losses are projected to come to teams with superior or equal records. If the projection is wrong on any of those outcomes, excluding matchups of two 4-4 teams, one less spot would be available to 4-win teams for a spot in the field.
Conversely, 33 4-4 teams are projected to win this week. All but one of those wins are projected to come over teams with inferior or equal records. If the projection is wrong on any of those outcomes, excluding matchups of two 4-4 teams, one more spot would be made available to a 4-win team to earn entrance into the field.
Once one has done all the math there, 252 spots are accounted for. If the projection is completely correct, or has the equal number of surprise wins and surprise losses that would leave four potential bids for 4-win teams to fill the 256 spots.
The projection has the following four teams qualifying via that route: Brother Rice, Nazareth, Glenbrook South and Taft. Brother Rice and Nazareth still can qualify for the field with a Week 9 win as they are currently projected for a loss, Glenbrook South and Taft must win and hope that the field cooperates to let them in.
Here is the Week 8 playoff projection for all eight classes. (Included in Class 1A through 6A are north/south divisional maps and below each bracket is more context on what happened in Week 7 that changed the make-up of the brackets):
Class 1A
Class 1A Enrollment Range: Up to 300
Largest 1A teams by enrollment: Carlyle, Deer Creek-Mackinaw, Cumberland, Althoff, Morrison
Smallest 2A teams by enrollment: Arthur, Bloomington Central Catholic, Momence, Chicago Christian, Tri-Valley
New teams in field:
Team added | Reason for addition |
---|---|
Carlyle | Faces toss-up game with another 4-4 team, Red Bud |
Deer Creek-Mackinaw | Upset win over El Paso-Gridley makes for a clear path to a slot |
Nokomis | Win over Cumberland should get them fifth bid out of Lincoln Prairie |
Class 1A North/South Map
Class 2A
Class 2A Enrollment Range: 303 to 406.5
Largest 1A teams by enrollment: Carlyle, Deer Creek-Mackinaw, Cumberland, Althoff, Morrison
Smallest 2A teams by enrollment: Arthur, Bloomington Central Catholic, Momence, Chicago Christian, Tri-Valley
Largest 2A teams by enrollment: Nashville, Dwight, Piasa Southwestern, Seneca, Auburn
New teams in the field:
Team added | Reason for addition |
---|---|
Arthur | Was in Class 1A |
Bloomington Central Catholic | Was in Class 1A |
Class 2A North/South Map
Class 3A
Class 3A Enrollment Range: 409.5 to 530.5
Largest 2A teams by enrollment: Nashville, Dwight, Piasa Southwestern, Seneca, Auburn
Smallest 3A teams by enrollment: Wilmington, Carlinville, Paxton, Crane/Oregon (same enrollment)
Largest 3A teams by enrollment: Prairie Central, Paris, Roxana, Tolono Unity, Monmouth
New teams in field:
Team added | Reason for addition |
---|---|
Litchfield | Dramatic turnaround for the Panthers |
Wilmington | Was in Class 2A |
Monmouth | Now has path to bid out of Three Rivers |
Monticello | Upset win over Prairie Central helps Sages into field |
Class 3A North/South Map
Class 4A
Class 4A Enrollment Range: 541.5 to 833
Largest 3A teams by enrollment: Prairie Central, Paris, Roxana, Tolono Unity, Monmouth
Smallest 4A teams by enrollment: Benton, Greenville, Phillips, Harrisburg, Dyett
Largest 4A teams by enrollment: DePaul Prep, St. Viator, Lincoln, Agricultural Science, Ridgewood
New teams in field:
Team added | Reason for addition |
---|---|
DePaul Prep | Multiple overtime win over Fenwick affords opportunity |
Phillips | Was in Class 3A |
Benton | Was in Class 3A |
Greenville | Was in Class 3A |
Effingham | Upset over Mount Zion clears the way |
Marengo | Win over Sandwich gives them a path |
Class 4A North/South Map
Class 5A
Class 5A Enrollment Range: 840.5 to 1290.5
Largest 4A teams by enrollment: DePaul Prep, St. Viator, Lincoln, Agricultural Science, Ridgewood
Smallest 5A teams by enrollment: Geneseo, St. Laurence, Morris, Rochelle, Evergreen Park
Largest 5A teams by enrollment: Antioch, T.F. North, Peoria, Prairie Ridge, Payton
New teams in field:
Team added | Reason for addition |
---|---|
St. Laurence | Was in Class 4A |
Morris | Was in Class 4A |
Geneseo | Was in Class 4A |
Rochelle | Was in Class 4A |
MacArthur | Upset Sacred Heart Griffin to earn fifth win |
Englewood STEM | Benefactor from another CPL shakeup |
Class 5A North/South Map
Class 6A
Class 6A Enrollment Range: 1296.075 to 1782.5
Largest 5A teams by enrollment: Antioch, T.F. North, Peoria, Prairie Ridge, Payton
Smallest 6A teams by enrollment: Providence, Danville, Kaneland, Dunlap, Centennial
Largest 6A teams by enrollment: Grant, Lake Zurich, Blue Island Eisenhower, Highland Park, Hubbard
New teams in field:
Team added | Reason for addition |
---|---|
Danville | Was in Class 5A |
Kaneland | Was in Class 5A |
Providence | Was in Class 5A |
Class 6A North/South Map
Class 7A
Class 7A Enrollment Range: 1784 to 2156
Largest 6A teams by enrollment: Grant, Lake Zurich, Blue Island Eisenhower, Highland Park, Hubbard
Smallest 7A teams by enrollment: Libertyville, Rockford Auburn, Wheaton Warrenville South, Willowbrook, Quincy.
Largest 7A teams by enrollment: Downers Grove North, Prospect, Brother Rice, Normal Community, Moline
New teams in field:
Team added | Reason for addition |
---|---|
Libertyville | Was in Class 6A |
Moline | Needs to upend rival Sterling in Week 9 for a bid |
Rockford Auburn | Was in Class 6A |
Class 8A
Class 8A Enrollment Range: 2255 and up
Largest 7A teams by enrollment: Downers Grove North, Prospect, Brother Rice, Normal Community, Moline
Smallest 8A teams by enrollment: Glenbard East, Edwardsville, Glenbard West, Maine South, St. Ignatius
New teams in field:
Team added | Reason for addition |
---|---|
Edwardsville | Was in Class 7A |
Glenbard East | Was in Class 7A |