For those curious, here are the games that each school in the Big 12 (plus UNI and Iowa) have hosted vs top 25/Power Programs in the non-con in the last 5 years:
Iowa State
2019-2020: #12 Seton Hall, Iowa
2018-2019: Missouri
2017-2018: Iowa, #22 Tennessee
2016-2017: Cincinnati
2015-2016: Iowa
Baylor
2019-2020: Arizona, Butler
2018-2019: Oregon, Alabama
2017-2018: Wichita St.
2016-2017: Oregon, Xavier
2015-2016: Vanderbilt, Georgia
Kansas
2019-2020: Colorado, Tennessee
2018-2019: Stanford, #17 Villanova
2017-2018: #16 Arizona St., Texas A&M
2016-2017: Stanford, Nebraska
2015-2016: #20 Kentucky
Kansas State
2019-2020: Marquette
2018-2019: --
2017-2018: Georgia
2016-2017: --
2015-2016: Ole Miss
Oklahoma
2019-2020: Mississippi St.
2018-2019: Creighton, Vanderbilt
2017-2018: Northwestern
2016-2017: Memphis, Florida
2015-2016: Wisconsin, Creighton
Oklahoma State
2019-2020: Georgetown, Wichita St.
2018-2019: Houston, South Carolina
2017-2018: #6 Wichita St
2016-2017: Arkansas
2015-2016: --
TCU
2019-2020: USC, #19 Xavier
2018-2019: Florida
2017-2018: SMU
2016-2017: Washington, Auburn
2015-2016: SMU, Tennessee
Texas
2019-2020: #22 LSU
2018-2019: VCU, Purdue, Providence
2017-2018: Michigan, Ole Miss
2016-2017: Alabama
2015-2016: North Carolina, UConn, Vanderbilt
Texas Tech
2019-2020: #2 Kentucky
2018-2019: Arkansas
2017-2018: #22 Nevada
2016-2017: LSU
2015-2016: --
West Virginia
2019-2020: Rhode Island, Missouri
2018-2019: Pitt
2017-2018: #15 Virginia, Kentucky
2016-2017: Texas A&M
2015-2016: --
Iowa
2019-2020: DePaul
2018-2019: Pitt, Iowa State
2017-2018: --
2016-2017: Seton Hall, #25 Iowa State
2015-2016: Florida St.
UNI
2019-2020: --
2018-2019: --
2017-2018: UNLV, Xavier
2016-2017: --
2015-2016: Colorado St, #1 North Carolina
All schedules came from the schools website. If a ranking is missing, it's because it wasn't on the schools website and I'm too lazy to look up that weeks ranking.