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Monday, March 18, 2019

The Bump (or Lack Thereof) From Winning Your Conference Tournament

My friend/former "splash bro" intramural teammate submitted the following query: Do teams that win their conference tournaments go further in the NCAA tournament?

I looked at every power conference tournament champion since 2002 (chosen since it was the first year KenPom released ratings), which encompasses the ACC, Big 10, Big 12, Big East, SEC, and Pac 12. 

I seriously considered leaving out the Pac 12, since the last time they won the whole thing was 1997 with Arizona. However, if I used that cutoff, I would have had to eliminate the Big 10 too, as they last won in 2000 with Michigan State... (no, Maryland does not count)

YearChampionConferenceWon Conf?
2018VillanovaBig East1
2017North CarolinaACC0
2016VillanovaBig East0
2015DukeACC0
2014ConnecticutAAC0
2013LouisvilleBig East1
2012KentuckySEC0
2011ConnecticutBig East1
2010DukeACC1
2009North CarolinaACC0
2008KansasBig 121
2007FloridaSEC1
2006FloridaSEC1
2005North CarolinaACC0
2004ConnecticutBig East1
2003SyracuseBig East0
2002MarylandACC0

8 of the past 17 champions won their conference tournament, 8 more were at-large from power conferences, and the only non-power conference champion was Connecticut (AAC) in 2014.

There are anecdotal examples for each extreme: Connecticut going on their run in 2011, winning 11 consecutive games en route to the title, or Virginia, dominating the ACC all year last year and then losing to UMBC. 

All in, this is how all conference tournament victors performed:

FinishCount%Cumul %
First Round1413.7%100.0%
Second Round2019.6%86.3%
Sweet 162625.5%66.7%
Elite 81716.7%41.2%
Final Four1110.8%24.5%
Championship65.9%13.7%
Champion87.8%7.8%
Total102100.0%100.0%

The seeds contained in this set run the gamut from title contenders to teams that had no business making the tournament (see: Georgia, 2008). So you would expect the above list to be a little bi-modal, and it is. 

I then compared the chances each team had of reaching the next round against the "average" chance each seed has, based on this year's bracket math.

Seed2nd RoundSweet 16Elite 8Final FourChampionshipChampion
197.7%78.4%56.9%37.0%22.2%12.9%
292.6%65.8%42.9%22.9%12.2%6.3%
382.3%50.8%24.7%11.1%5.0%2.2%
477.3%44.6%17.1%8.0%3.3%1.3%
567.1%36.3%13.3%6.0%2.4%0.9%
663.3%31.0%12.9%4.9%1.8%0.6%
758.5%20.8%9.8%3.6%1.3%0.4%
851.4%11.2%4.7%1.6%0.5%0.1%
948.6%10.1%4.1%1.3%0.4%0.1%
1041.5%11.9%4.6%1.3%0.4%0.1%
1138.6%14.9%5.0%1.4%0.4%0.1%
1232.9%12.5%2.9%0.8%0.2%0.1%

The 102 finishes of the conference tournament champions are fairly similar to a generic 2 seed, except with worse odds to win their first game and better odds of making the Final Four or further.


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