Seed Distributions for March Madness: A Tool for Bracketologists

Power Conferences Versus Mid-Majors

The selection committee has been kind to Power Conferences (Atlantic Coast Conference, Big East, Big Ten, Big 12, Pac 12, and since 2014, American Athletic Conference). The criteria used to select at-large teams to be in the tournament favor Power Conference teams (Top 50 Wins, Strength of Schedule, NET/RPI, etc...) The following table gives the number of Power Conferences and mid-major at-large teams that have been selected by the committee between 2006 and 2022.

Number of Power Conferences Year Auto Bids At-Large Bids Power Conference At-Large Bids Other At-Large Bids
6 2006 31 34268
62007 31 34286
6 2008 31 34286
6 2009 31 34 30 4
62010 31 34 26 8
62011 31 37 30 7
6 2012 31 37 26 11
62013 31 37 26 11
72014 32 36 29 7
72015 32 36 30 6
7 2016 32 36 33 3
7 2017 32 36 33 3
7 2018 32 36 33 3
7 2019 32 36 32 4
7 2021 31 37 33 4
7 2022 32 36 30 6

Given the abundance of Power Conference teams in the tournament, how do they do? The following table gives their performance in the various rounds of the tournament (between 2006 and 2022).

Conference Total Number of Teams in Tournament Reached Round of 32 Reached Sweet 16 Reached Elite 8 Reached Final Four Won National Championship
Big 10 105 75 37 15 10 0
Pac 12 70 49 30 12 5 0
Big 12 96 64 33 20 7 3
SEC 79 54 30 19 10 3
ACC 97 66 41 22 10 5
Big East 106 64 33 18 11 4
AAC 23 12 5 3 2 1
Percent of Total . 67 82 85 86 100

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