BYU
2 Iowa State
3 Baylor
4 Kansas
5 SDSU
7 Texas
9 TCU
11 NC State

By comparison, here are the victories of 1 seeds over tournament teams:

HOUSTON
2 Iowa State
3 Baylor
4 Kansas
6 BYU
6 Texas Tech
6 Texas Tech
7 Dayton
7 Texas
7 Texas
9 TCU
9 Texas A&M
16 Stetson

UCONN
1 UNC
2 Marquette
3 Creighton
5 Gonzaga
7 Texas

UNC
2 Tennessee
4 Duke
4 Duke
6 Clemson
11 NC State
11 NC State

PURDUE
2 Tennessee
2 Arizona
3 Illinois
4 Alabama
5 Gonzaga
5 Wisconsin
5 Wisconsin
9 Northwestern
9 Michigan State
9 Michigan State
13 Samford
14 Morehead State

Here are the wins for the other 6 seeds:

SOUTH CAROLINA
2 Tennessee
3 Kentucky
7 Florida
8 Mississippi State
8 Mississippi State
9 Texas A&M
12 Grand Canyon

CLEMSON
1 UNC
4 Alabama
9 TCU
10 Boise State
12 UAB

TEXAS TECH
3 Baylor
4 Kansas
6 BYU
6 BYU
7 Texas
9 TCU

And here are the 5 seeds:

GONZAGA
3 Kentucky
5 Saint Mary's
13 Yale

SAINT MARY'S
5 Gonzaga
5 Gonzaga
10 Colorado State
11 New Mexico

SAN DIEGO STATE
5 Saint Mary's
5 Gonzaga
8 Utah State
8 Utah State
10 Colorado State
11 New Mexico

WISCONSIN
1 Purdue
2 Marquette
8 Nebraska
9 Northwestern
9 Michigan State
9 Michigan State
10 Virginia