Here are some Tournament Challenge takeaways as we head into Friday’s set of Sweet 16 games. Unless noted otherwise, all seed-vs.-seed facts are since 1985.

No. 1 Kansas vs. No. 5 Clemson

• 30.5 percent of brackets predicted No. 1 Kansas would meet No. 5 Clemson in the Sweet 16.

• 73.6 percent of entries pushed No. 1 Kansas all the way to the Elite Eight, and 29.8 percent have them in the Final Four.

• 6.8 percent of entries put No. 5 Clemson into the Elite Eight. Just 1.8 percent have them in the Final Four.

• No. 1 seeds are 36-7 vs. No. 5 seeds (83.7 percent), with the last loss coming in 2011 (Duke vs. Arizona in Sweet 16).

No. 1 Villanova vs. No. 5 West Virginia

• 43.5 percent of brackets predicted No. 1 Villanova would meet No. 5 West Virginia in the Sweet 16.

• 74.2 percent of entries have No. 1 Villanova locked into the Elite Eight, with 58.4 percent of brackets pushing them to the Final Four.

• 10.5 percent of brackets have No. 5 West Virginia in the Elite Eight. 5.6 percent of entries have them in the Final Four.

• No. 1 seeds are 36-7 vs. No. 5 seeds (83.7 percent), with the last loss coming in 2011 (Duke vs. Arizona in Sweet 16).

No. 2 Duke vs. No. 11 Syracuse

• 2.9 percent of brackets predicted No. 2 Duke would meet No. 11 Syracuse in the Sweet 16.

• 48.2 percent of entries went with No. 2 Duke all the way to the Elite Eight, and 30.2 percent have them in the Final Four.

• Only 1.4 percent of entries put No. 11 Syracuse into the Elite Eight -- and just 0.6 percent have them in the Final Four.

• No. 2 seeds have lost to No. 11 seeds just twice in 15 meetings (2016: Arizona vs. Xavier; 1986: Georgia Tech vs. LSU).

No. 2 Purdue vs. No. 3 Texas Tech

• 45.7 percent of brackets predicted No. 2 Purdue would meet No. 3 Texas Tech in the Sweet 16.

• 58.9 percent of entries pushed No. 2 Purdue all the way to the Elite Eight, and 18.8 percent have them in the Final Four.

• 18.9 percent of entries put No. 3 Texas Tech into the Elite Eight, while 4.6 percent have them in the Final Four.

• No. 2 seeds are 32-18 against No. 3 seeds (64 percent). They won all three matchups in 2016-17 by an average of 16 points. All five meetings since 2013 have been decided by double figures.