No. 1 Purdue and No. 2 Houston both lost on Tuesday night — the eighth time in AP poll history that the top two teams lost to unranked opponents on the same day.
- Nebraska 88, Purdue 72: This was the Cornhuskers' fourth win over a No. 1 team and first since 1982. As for the Boilermakers, this is the fourth time in the last two seasons that they've lost to an unranked opponent while holding the No. 1 ranking.
- Iowa State 57, Houston 53: The Cougars were the last remaining undefeated team in the country. Now there are zero. Add in women's hoops and there are just three unbeatens left in all of Division I basketball: South Carolina, UCLA and Baylor.
