Bracketology

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#76      
Blindly following data is like the scene in The Office where they drive into the lake because GPS told them to drive in that direction.
Your points are all valid… no disagreement. Although, technically, that scene was a case of misinterpreting the data, not faulty data itself.
 
#77      
from teamrankings.com

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#78      

DeonThomas

South Carolina
Auburn is not a 3 seed. They got their 2nd Q1 win last night. And now with the SEC tournament getting blown up, I don't see a path to a 3 seed for Auburn.

2024 Pomeroy College Basketball Ratings​

Data through games of Friday, March 15 (6095 games)

Strength of ScheduleNCSOS
RkTeamConfW-LAdjEMAdjOAdjDAdjTLuckAdjEMOppOOppDAdjEM
1HoustonB1230-3+33.83120.31286.5163.4348+.032105+11.0321111.636100.611-0.86223
2ConnecticutBE30-3+31.71126.9195.21664.5328+.04868+9.9040111.345101.438-3.46284
3PurdueB1029-3+29.50125.6296.12167.5169+.06446+13.335113.75100.38+10.3313
4AuburnSEC25-7+28.40120.81092.4569.857-.076332+8.8167111.443102.674+1.36150
 
#79      

2024 Pomeroy College Basketball Ratings​

Data through games of Friday, March 15 (6095 games)

RkTeamConfW-LAdjEMAdjOAdjDAdjTLuckAdjEMOppOOppDAdjEM
Strength of ScheduleNCSOS
1HoustonB1230-3+33.83120.31286.5163.4348+.032105+11.0321111.636100.611-0.86223
2ConnecticutBE30-3+31.71126.9195.21664.5328+.04868+9.9040111.345101.438-3.46284
3PurdueB1029-3+29.50125.6296.12167.5169+.06446+13.335113.75100.38+10.3313
4AuburnSEC25-7+28.40120.81092.4569.857-.076332+8.8167111.443102.674+1.36150
Resumes frequently don’t line up with efficiency metrics, and the committee’s consideration skews toward the resume when that happens. Tennessee + Creighton + St. Mary’s last year, Loyola in 2021, etc. I’m not arguing whether that’s right or wrong—different discussion—but Auburn will not sniff the 3 line.
 
#80      

Punesguy

Ft. Collins, CO
Thank goodness for the BU era! We no longer wonder if we’re going to dance or not. We’re debating over a 3 versus 4 seed. Let’s go out today a beat a challenging Nebraska team and then surprise PU in the finals! Then we can debate on a 2 versus 3 seed!
With BU’s recent performance in the transfer portal and U of I’s NIL funds we should always attract strong talent.
Enjoy the ride my Illini brothers and sisters … I feel it’s going to be an exciting several weeks! :shield:
 
#81      
I’ll continue to say this. As a person who makes his living in financial analysis, blindly following stats and data is a bad approach. At some point, humans have to provide the context that computers cannot provide.

Blindly following data is like the scene in The Office where they drive into the lake because GPS told them to drive in that direction.
Yes, but the selection committee is not likely to have much skill in knowing when (and how much) to go against the data.

When they go against it and betting markets don't, I'll side with betting markets & data (like in the case of Auburn).

While betting markets like Houston over Purdue, they like UConn even more. So I'd have no problem with the committee putting UConn first overall despite computers liking Houston, but I don't see a good argument for Purdue.
 
#83      
Agree. Sagarin used to have a recency measure in his analysis. Early games should matter, but not as much as how a team finishes.
I'm sure some amount of recency adds skill to a ranking algorithm.

With NCAA BB, though, I wonder if the lack of late season inter-conference play is an obstacle. You'd have to make sure the last non-conference games don't skew the relative weighting of conferences.
 
#84      

2024 Pomeroy College Basketball Ratings​

Data through games of Friday, March 15 (6095 games)

Strength of ScheduleNCSOS
RkTeamConfW-LAdjEMAdjOAdjDAdjTLuckAdjEMOppOOppDAdjEM
1HoustonB1230-3+33.83120.31286.5163.4348+.032105+11.0321111.636100.611-0.86223
2ConnecticutBE30-3+31.71126.9195.21664.5328+.04868+9.9040111.345101.438-3.46284
3PurdueB1029-3+29.50125.6296.12167.5169+.06446+13.335113.75100.38+10.3313
4AuburnSEC25-7+28.40120.81092.4569.857-.076332+8.8167111.443102.674+1.36150

I'm not sure what your point is?

Houston was a 5 seed 2 years ago and entered the NCAA tournament as #4 on KenPom as well.

Auburn has ONE Q1 win. Their win yesterday just got them to the 4 line. Beating Florida/Miss St./Texas A&M is not going to get them to jump another 3 or 4 teams.
 
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#85      
Yes, but the selection committee is not likely to have much skill in knowing when (and how much) to go against the data.
Much of the difference in the computer rankings vs committee decisions is due to the committee having different goals than the predictive systems. They want to encourage early season road games between the better teams for example. Or they want an entertaining tournament so CBS keeps writing the big checks.
 
#86      
Yes, but the selection committee is not likely to have much skill in knowing when (and how much) to go against the data.

When they go against it and betting markets don't, I'll side with betting markets & data (like in the case of Auburn).

While betting markets like Houston over Purdue, they like UConn even more. So I'd have no problem with the committee putting UConn first overall despite computers liking Houston, but I don't see a good argument for Purdue.

It's your opinion that the committee doesn't have skill in knowing when and how much to go against the data. But you're splitting hairs about the #1 overall seed when it doesn't matter whatsoever. Each of the top 3 teams are going to get the region they want.

But you need to look at the actual resumes instead of computers and Vegas (Betting patterns do influence lines to some degree too. Even opening lines... it's not just pure data.) Houston and UConn's non-conference strength of schedules are in the 200s. Purdue's is 13th.

Houston's non-conference wins over NCAA tournament teams: Dayton and Texas A&M
UConn's non-conference wins over NCAA tournament teams: Texas, UNC, and Gonzaga
Purdue's non-conference wins over NCAA tournament teams: Gonzaga, Tennessee, Marquette, Alabama, Arizona, and even Samford (by 53 points)
 
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#87      
Looked at the bracket updates today and here's what I found:

-Lunardi: Has us a 3 seed in the South bracket facing 14 seed Akron in the first round in Pittsburgh. 6/11 matchup in that portion of the bracket is Florida vs. play-in game winner between St. John's and New Mexico.
-Palm: Has us a 3 seed in the East bracket, also facing 14 seed Akron in the first round in Omaha. 6/11 matchup in that portion of the bracket is Nevada/Colorado.

Looks like Bracket Matrix still has us as the #2 4 seed but it doesn't appear that it has been updated for today.
 
#88      
It's your opinion that the committee doesn't have skill in knowing when and how much to go against the data. But you're splitting hairs about the #1 overall seed when it doesn't matter whatsoever. Each of the top 3 teams are going to get the region they want.

But you need to look at the actual resumes instead of computers and Vegas (Betting patterns do influence lines to some degree too. Even opening lines... it's not just pure data.) Houston and UConn's non-conference strength of schedules are in the 200s. Purdue's is 13th.

Houston's non-conference wins over NCAA tournament teams: Dayton and Texas A&M
UConn's non-conference wins over NCAA tournament teams: Texas, UNC, and Gonzaga
Purdue's non-conference wins over NCAA tournament teams: Gonzaga, Tennessee, Marquette, Alabama, Arizona, and even Samford (by 53 points)
I agree we're splitting hairs in the top overall seed case, but not in general. Auburn is a more dramatic example where the anticipated committee decision deviates significantly from computers and Vegas. If it were that easy to out-smart computers and Vegas, more people would get rich doing it.

As another post said, the committee has different goals (i.e. revenue during the tournament and influencing non-conference scheduling), so I wouldn't expect them to exhibit such skill even if they possessed it.
 
#89      
I'm not sure what your point is?

Houston was a 5 seed 2 years ago and entered the NCAA tournament as #4 on KenPom as well.

Auburn has ONE Q1 win. Their win yesterday just got them to the 4 line. Beating Florida/Miss St./Texas A&M is not going to get them to jump another 3 or 4 teams.
Houston beat a 1 seed that year, so the committee's decision to overrule the computers didn't work out well.
 
#90      

ChiefGritty

Chicago, IL
What happened to everyone saying we had a 3 seed wrapped up if we won today against O$U? Why do we have to win tomorrow too now?

IMO, we will be a 4 unless we go to the Championship game...only because we are Illinois. Anyone else would already be a 3 seed.
The truth of it at this point is that we may already have a 3 seed or we might be a 4 even if we won out. Really fine margins between a bunch of teams in that part of the S-curve, and no real earth-shattering wins left to get with the BTT final too late for consideration.

I do think we've pretty much eliminated the possibility of a 5, which was a bigger threat than people were letting on a week ago, imho.
 
#91      
1 seeds lose every year.

Also in 2022, San Francisco was #21 on KenPom heading into the NCAA tournament and a 10 seed. They lost in the 1st round to 7 seed Murray State who was #27 on KenPom before the tournament.

Pointing to a single game is a very poor argument.
 
#92      
The computers are still making educated guesses. Auburn has beaten 1 team in the top 29 of KenPom. They have lost to 5 such teams.

I'm a stats major of sorts and even I would have a hard time relying on data that told me a team like that was the 4th best team in the country. I'd want more data.
 
#93      

201154JC

Rockford, IL
We can produce statistics until the cows come home and for me, the one that matters most is, we have been
in every game we've played this year right up until the end in most cases. Not a single double digit loss and no bad
beats. How many teams ahead of us can make that claim? This team is special in that respect. I admire them for their
fight.
 
#94      
I have no problem where we go as long as we don't see Houston til final 4. They can score and top 5 defensive teams in the greatest country on earth. We are not.
 
#95      

Illini2010-11

Sugar Grove
The computers are still making educated guesses. Auburn has beaten 1 team in the top 29 of KenPom. They have lost to 5 such teams.

I'm a stats major of sorts and even I would have a hard time relying on data that told me a team like that was the 4th best team in the country. I'd want more data.
That is why there is always the need for data analysts to detect outliers, etc. I never want a system solely beholden to computers alone, and I am a person who loves as much data as possible.

I think teams, like Purdue, should be rewarded for playing such difficult non-conference schedules compared to teams that fill their non-conference schedule with many cupcakes.

Can the NET system formula be tweaked...maybe, we simply do not have enough info available. However, I think it is great that the committee uses a blended approach to selection and seeding. It is best practice, IMO.
 
#96      

OrangeBlue98

Des Moines, IA
That is why there is always the need for data analysts to detect outliers, etc. I never want a system solely beholden to computers alone, and I am a person who loves as much data as possible.

I think teams, like Purdue, should be rewarded for playing such difficult non-conference schedules compared to teams that fill their non-conference schedule with many cupcakes.

Can the NET system formula be tweaked...maybe, we simply do not have enough info available. However, I think it is great that the committee uses a blended approach to selection and seeding. It is best practice, IMO.
The bottom line is that, once again, humans need to provide context behind the data to make the best decisions. If we are not going to bother with context, then just develop an algorithm to seed teams and don't even bother with a selection committee.

Data is critical. Data without context is noise.
 
#97      
In my opinion, if Illinois beats Nebby today, I’d be shocked if Illinois wasn’t a 3-seed when the bracket is revealed tomorrow.
 
#98      

DeonThomas

South Carolina
NCAA Selection Committee Rankings
(Through games of Feb 16, 2024)
RANKSCHOOL
1Purdue (No. 1 MW)
2UConn (No. 1 EAST)
3Houston (No. 1 SOUTH)
4Arizona (No. 1 WEST) ....moving down to a #2 seed
5North Carolina ..............moving up to a #1 seed
6Tennessee ......................6-2 since
7Marquette ........still a #2 seed
8Kansas ..............3-4 since (HOU & BAY & BYU & CIN)
9Alabama ...........4-4 since (KY, TN, FLA and FLA)
10Baylor ..................5-4 since (HOU, BYU, IOWA ST & TTU)
11Iowa State ...........moving up to a #2 seed
12Duke ...............5-3 since (WF & NCState & UNC)
13Auburn ...............5-2 since (TN & KY)
14San Diego State .............dropping out. bad losses. 5-3 since (Boise, UNLV and Utah St)
15Illinois ................6-2 since (PUR & PSU) PASSING KANSAS, ALABAMA AND BAYLOR)
16Wisconsin ............dropping out.
 
#99      
What happened to everyone saying we had a 3 seed wrapped up if we won today against O$U? Why do we have to win tomorrow too now?

IMO, we will be a 4 unless we go to the Championship game...only because we are Illinois. Anyone else would already be a 3 seed.
No one said this. We always needed to make the BTT Final and get some help. Since we got a lot of help, we could still sneak in as a 3 with a loss today, but that would be pushing the envelope.
 
#100      
The computers are still making educated guesses. Auburn has beaten 1 team in the top 29 of KenPom. They have lost to 5 such teams.

I'm a stats major of sorts and even I would have a hard time relying on data that told me a team like that was the 4th best team in the country. I'd want more data.
Auburn at #4 in KenPom is an outlier even among computers, so I'm not looking at that either. Avg of various computer ranks is more like 8/9, and Vegas has them around #7. To go against that consensus (i e. not even a 3 seed) to me would require some very unusual "contextual" information or a different motivation, otherwise it sounds like cherry picking to make a narrative.
 
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