An upset is a victory by an underdog team. In the context of the NCAA Division I men's basketball tournament, a single-elimination tournament, this generally constitutes a team defeating an opponent with a substantially higher seed. The NCAA defines a tournament upset as a victory by a team seeded five or more lines below the opponent that it defeats.
This is a list of victories since the tournament expanded to 64 teams in 1985. Teams with victories listed won games seeded No. 11 or lower in the Round of 64, seeded No. 7 or lower in the Round of 32 or the Sweet Sixteen, or seeded No. 6 or lower in the Elite Eight, Final Four, or national championship. All teams are listed by athletic brand names they used at the time of their wins, which do not always match those in use today.
The table below lists the best outcomes for low-seeded teams since the tournament's expansion in 1985, sorted by the round in which that team was eliminated.
This round was called the First Round until 2011, when the introduction of the First Four caused it to be renamed the Second Round. Starting with the 2016 tournament, it returned to being called the First Round. There were eight official First Round upsets in 2016, which was the most in tournament history.
Detail between each pair of seeds in this section has been updated as of completion of the 2026 Round of 64, representing 164 games played between each pair.
There have been two games in which a No. 16 seed has defeated a No. 1 seed () since 1985:
There have been 11 games in which a No. 15 seed has defeated a No. 2 seed () since 1985:
There have been 23 games in which a No. 14 seed has defeated a No. 3 seed () since 1985:
There have been 33 games in which a No. 13 seed has defeated a No. 4 seed () since 1985:
There have been 58 games in which a No. 12 seed has defeated a No. 5 seed () since 1985:
There have been 64 games in which a No. 11 seed has defeated a No. 6 seed () since 1985:
The Round of 32 is also called the Second Round and, occasionally, the regional quarterfinals. This is the first round in which No. 7 seeds, No. 8 seeds, No. 9 seeds, and No. 10 seeds are able to face teams ranked five seed lines higher than them and is therefore the first round in which these teams may record upset victories.
A No. 16 seed has never won a game in the Round of 32. The closest margin of defeat happened in 2018, when UMBC lost to No. 9 seed Kansas State by seven points.
Four of the eleven No. 15 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Two of the twenty-three No. 14 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Six of the thirty-three No. 13 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Twenty-two of the fifty-eight No. 12 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Twenty-eight of the sixty-four No. 11 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Twenty-five of the sixty-three No. 10 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Nine of the eighty-seven No. 9 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Sixteen of the seventy-seven No. 8 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
Twenty-nine of the one hundred and one No. 7 seeds () who advanced from the Round of 64 also won in the Round of 32. Seeds of the teams they defeated are in parentheses.
The Sweet Sixteen are the eight pairs of teams that meet in the regional semifinals.
One of the four No. 15 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. The seed of the team they defeated is in parentheses.
A No. 14 seed has never won a game in the Sweet Sixteen. The closest margin of defeat happened in 1986, when Cleveland State lost to No. 7 seed Navy by one point.
A No. 13 seed has never won a game in the Sweet Sixteen. The closest margin of defeat happened in 1998, when Valparaiso lost to No. 8 seed Rhode Island by six points.
Two of the twenty-two No. 12 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Ten of the twenty-eight No. 11 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Nine of the twenty-five No. 10 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. Seeds of the teams they defeated are in parentheses.
<sup>â </sup> Not an upset, as the No. 10 seed defeated a lower seed.<br> <sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Six of the nine No. 9 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. Seeds of the teams they defeated are in parentheses.
<sup>â </sup> Not an upset, as the No. 9 seed defeated a lower seed.<br> <sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Nine of the sixteen No. 8 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. Seeds of the teams they defeated are in parentheses.
<sup>â </sup> Not an upset, as the No. 8 seed defeated a lower seed.<br> <sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Ten of the twenty-nine No. 7 seeds () who advanced from the Round of 32 also won in the Sweet Sixteen. Seeds of the teams they defeated are in parentheses.
<sup>â </sup> Not an upset, as the No. 7 seed defeated a lower seed.<br> <sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
The Elite Eight are the four pairs of teams that meet in the regional finals. This is the first round in which No. 6 seeds are able to face teams ranked five seed lines higher than them and is therefore the first round in which No. 6 seeds may record upset victories.
A No. 15 seed has never won a game in the Elite Eight. The closest margin of defeat happened in 2022, when Saint Peter's lost to No. 8 seed North Carolina by 20 points.
A No. 12 seed has never won a game in the Elite Eight. The closest margins of defeat happened in 2002, when Missouri lost to No. 2 seed Oklahoma, and 2021, when Oregon State lost to No. 2 seed Houston, both by six points.
Six of the ten No. 11 seeds () who advanced from the Sweet Sixteen also won in the Elite Eight. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
One of the nine No. 10 seeds () who advanced from the Sweet Sixteen also won in the Elite Eight. The seed of the team they defeated is in parentheses.
Two of the six No. 9 seeds () who advanced from the Sweet Sixteen also won in the Elite Eight. Seeds of the teams they defeated are in parentheses.
Six of the nine No. 8 seeds () who advanced from the Sweet Sixteen also won in the Elite Eight. Seeds of the teams they defeated are in parentheses.
<sup>â </sup> Not an upset, as the No. 8 seed defeated a lower seed.<br> <sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Three of the ten No. 7 seeds () who advanced from the Sweet Sixteen also won in the Elite Eight. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
Three of the eighteen No. 6 seeds () who advanced from the Sweet Sixteen also won in the Elite Eight. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
The Final Four are the winners of the four regional finals.
No team seeded No. 9 or lower has ever won a game in the Final Four. The closest margin of defeat happened in 2023, when No. 9 seed Florida Atlantic lost to No. 5 seed San Diego State by one point.
Four of the six No. 8 seeds () who advanced from the Elite Eight also won in the Final Four. Seeds of the teams they defeated are in parentheses.
<sup>â </sup> Not an upset, as the No. 8 seed defeated a lower seed.
One of the three No. 7 seeds () who advanced from the Elite Eight also won in the Final Four. The seed of the team they defeated is in parentheses.
Two of the three No. 6 seeds () who advanced from the Elite Eight also won in the Final Four. Seeds of the teams they defeated are in parentheses.
<sup>â¡</sup> Not officially an upset because the teams were separated by fewer than five seed lines.
One of the four No. 8 seeds () who advanced from the Final Four also won the national championship. The seed of the team they defeated is in parentheses.
The only No. 7 seed who advanced from the Final Four also won the national championship. The seed of the team they defeated is in parentheses.
<sup>â </sup> Not an upset, as the No. 7 seed defeated a lower seed.
One of the two No. 6 seeds () who advanced from the Final Four also won the national championship. The seed of the team they defeated is in parentheses.