Monday, March 17, 2025

NCAA Tournament 2025 Bracket Math for the MDS Model

By almost any rating system, North Carolina deserved to be in the tournament.

For those who are still reading and didn't rage quit this post written by a UNC grad, this year's composite contains 4 models:

As always, I use a weighted average of these 4 ratings, which smooths out the final Aggregate ratings that I use to project the tournament.

First I will bore you with evidence that Carolina did in fact deserve to be in, per any advanced metric rating system. KenPom: #33, Powerrank: #42, Seven Overtimes: #33, Nate Silver: #33, and by my overall model, we rank #35. Compare this to:
  • The other First Four at-large teams:
    • Xavier: #40
    • San Diego St: #41
    • Texas: #47
  • And the other first few teams out:
    • Boise St: #42
    • Colorado St: #44
    • Indiana: #46
    • West Virginia: #50
    • UC Irvine: #55

Given that 68 teams get in (for now), we deserved to be one of them. Credit to @wagner_seymour and @michaelwatson2:


Now the bracket math. Note: For simplicity, I've taken the highest rated team in each play-in game and included them

SeedTeam1st Round2nd RoundSweet 16Elite 8Final FourChampionshipChampion
South
1Auburn100.00%99.33%74.82%57.12%40.41%24.17%13.97%
16*Alabama St.100.00%0.67%0.03%0.00%0.00%0.00%0.00%
8Louisville100.00%57.97%16.10%8.83%4.25%1.58%0.55%
9Creighton100.00%42.03%9.06%4.25%1.72%0.52%0.15%
5Michigan100.00%58.79%32.00%10.20%4.69%1.66%0.55%
12UC San Diego100.00%41.21%18.93%4.68%1.76%0.49%0.13%
4Texas A&M100.00%73.29%40.64%13.61%6.51%2.40%0.84%
13Yale100.00%26.71%8.42%1.30%0.33%0.06%0.01%
6Ole Miss100.00%55.92%27.54%12.28%4.40%1.52%0.49%
11*North Carolina100.00%44.08%19.25%7.50%2.30%0.68%0.19%
3Iowa St.100.00%81.44%48.43%24.88%10.47%4.28%1.65%
14Lipscomb100.00%18.56%4.77%0.96%0.14%0.02%0.00%
7Marquette100.00%54.44%22.56%10.84%3.79%1.28%0.40%
10New Mexico100.00%45.56%17.05%7.46%2.32%0.70%0.19%
2Michigan St.100.00%89.90%58.50%35.76%16.88%7.77%3.40%
15Bryant100.00%10.10%1.90%0.32%0.03%0.00%0.00%
West
1Florida100.00%98.07%81.12%61.26%43.93%28.61%17.26%
16Norfolk St.100.00%1.93%0.26%0.02%0.00%0.00%0.00%
8Connecticut100.00%58.89%12.33%5.48%2.16%0.71%0.21%
9Oklahoma100.00%41.11%6.30%2.27%0.71%0.19%0.04%
5Memphis100.00%57.62%25.21%6.79%2.76%0.95%0.28%
12Colorado St.100.00%42.38%15.59%3.34%1.12%0.31%0.07%
4Maryland100.00%83.02%54.28%20.27%10.73%4.95%2.02%
13Grand Canyon100.00%16.98%4.91%0.57%0.11%0.02%0.00%
6Missouri100.00%62.70%30.42%13.90%4.80%1.88%0.64%
11Drake100.00%37.30%13.68%4.59%1.11%0.31%0.07%
3Texas Tech100.00%84.24%52.05%27.48%11.26%5.19%2.13%
14UNC Wilmington100.00%15.76%3.85%0.70%0.09%0.01%0.00%
7Kansas100.00%64.90%28.38%14.09%4.93%1.96%0.68%
10Arkansas100.00%35.10%10.61%3.73%0.86%0.23%0.05%
2St. John's100.00%93.48%60.15%35.42%15.44%7.53%3.28%
15Omaha100.00%6.52%0.86%0.09%0.01%0.00%0.00%
East
1Duke100.00%98.75%81.14%63.18%43.15%28.10%17.18%
16*American100.00%1.25%0.12%0.01%0.00%0.00%0.00%
8Mississippi St.100.00%49.82%9.31%4.20%1.41%0.44%0.12%
9Baylor100.00%50.18%9.44%4.28%1.45%0.45%0.12%
5Oregon100.00%59.80%24.98%5.83%1.92%0.58%0.16%
12Liberty100.00%40.20%13.26%2.25%0.56%0.12%0.02%
4Arizona100.00%81.45%55.48%19.53%9.16%4.00%1.59%
13Akron100.00%18.55%6.28%0.72%0.12%0.02%0.00%
6BYU100.00%48.89%22.52%8.15%2.58%0.92%0.29%
11VCU100.00%51.11%24.07%8.96%2.92%1.07%0.35%
3Wisconsin100.00%89.09%51.74%22.92%8.96%3.91%1.55%
14Montana100.00%10.91%1.66%0.16%0.01%0.00%0.00%
7St. Mary's100.00%72.62%28.14%14.67%5.44%2.25%0.85%
10Vanderbilt100.00%27.38%5.46%1.61%0.30%0.06%0.01%
2Alabama100.00%93.51%65.28%43.37%21.99%12.26%6.33%
15Robert Morris100.00%6.49%1.12%0.16%0.01%0.00%0.00%
Midwest
1Houston100.00%98.27%66.08%49.23%33.12%18.77%10.69%
16SIU Edwardsville100.00%1.73%0.09%0.01%0.00%0.00%0.00%
8Gonzaga100.00%67.96%26.43%16.90%9.45%4.25%1.92%
9Georgia100.00%32.04%7.40%3.41%1.30%0.37%0.11%
5Clemson100.00%71.57%42.53%14.94%7.09%2.61%0.97%
12McNeese St.100.00%28.43%10.76%1.88%0.51%0.10%0.02%
4Purdue100.00%74.06%39.16%12.58%5.56%1.88%0.64%
13High Point100.00%25.94%7.54%1.04%0.23%0.03%0.01%
6Illinois100.00%59.21%31.72%13.39%4.94%1.67%0.57%
11*Xavier100.00%40.79%18.27%6.18%1.79%0.47%0.12%
3Kentucky100.00%80.29%45.17%20.15%7.90%2.85%1.03%
14Troy100.00%19.71%4.84%0.84%0.12%0.01%0.00%
7UCLA100.00%60.19%21.23%10.31%3.49%1.08%0.33%
10Utah St.100.00%39.81%10.70%4.13%1.05%0.24%0.05%
2Tennessee100.00%90.91%65.94%44.57%23.39%11.48%5.67%
15Wofford100.00%9.09%2.13%0.42%0.05%0.00%0.00%
Totals64.0032.0016.008.004.002.001.00
SeedTeam1st Round
16*Alabama St.53.41%
16*St. Francis46.59%
16*American52.12%
16*Mount St. Mary's47.88%
11*San Diego St.46.16%
11*North Carolina53.84%
11*Texas41.87%
11*Xavier58.13%

Some notes:

  • A super chalky bracket, with all four 1-seeds favored to make the Final Four, and all at 40%+ with the exception of Houston
    • This is thanks to Gonzaga (#7 in my rating) as Houston's likely second round opponent
  • These four 1-seeds are the only teams with > 10% to win it all, with Florida, Dook, and Auburn a step above (in that order (barely))
    • Dook is BARELY the highest rated team, but has a slightly harder route (Caleb Love or Grant Nelson, please) and comes in less than 0.1% lower in chances to win it all because of it
  • The relative strength/weakness of the two 1 seeds facing play-in 16 seeds is very elevated - Auburn and Dook both have 99% chance of moving on (hoping for a jinx here)
Full rankings:

RankSeedTeamRating
11Duke94.77
21Florida94.70
31Auburn93.76
41Houston93.20
52Alabama91.24
62Tennessee90.41
78Gonzaga88.89
82Michigan St.88.66
92St. John's88.58
104Maryland87.59
113Texas Tech87.59
124Arizona86.85
133Wisconsin86.82
143Iowa St.86.73
157St. Mary's86.01
165Clemson85.82
173Kentucky85.51
188Louisville85.34
194Texas A&M85.23
207Kansas85.23
216Missouri85.04
224Purdue84.64
236Illinois84.62
245Michigan84.58
256Ole Miss84.30
2611VCU84.16
277Marquette83.95
286BYU83.77
297UCLA83.42
305Memphis83.18
318Connecticut82.75
329Creighton82.54
3310New Mexico82.40
349Georgia82.39
3511North Carolina82.22
378Mississippi St.81.89
369Baylor81.95
385Oregon81.62
3912UC San Diego81.48
4011Xavier81.37
4111San Diego St.80.88
4211Drake80.52
4312Colorado St.80.50
4410Arkansas79.89
4510Utah St.79.82
469Oklahoma79.62
4711Texas78.50
4812Liberty78.16
4912McNeese St.77.87
5010Vanderbilt77.62
5113Yale76.56
5213High Point75.64
5313Akron74.37
5413Grand Canyon74.27
5514Lipscomb74.26
5614Troy73.62
5714UNC Wilmington73.58
5815Wofford71.78
5915Bryant70.86
6015Robert Morris70.11
6114Montana69.64
6215Omaha67.48
6316Norfolk St.65.85
6416SIU Edwardsville63.71
6516American63.49
6616Mount St. Mary's62.75
6716Alabama St.59.26
6816St. Francis58.07

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