you are correct, I must have been thinking of North Carolina. I could have sworn we played Duke some time in the last 6 years...
Well... Keady definitely did beat Duke
Matt Painter is 0-2 v. Duke, and the two institutions have not played since the South Regional Semi-Final in the NCAA Tournament of 2010.
Purdue and Duke have met seven times since 1950, and Purdue is 4-3:
2010 - Duke 70-57 (Krzyzewski, Painter)
(NCAA Tournament - South Regional Semi-Final)
2008 - Duke 76-60 (Krzyzewski, Painter)
(Big Ten/ACC Challenge)
2003 - Purdue 78-68 (Keady, Krzyzewski)
(Great Alaska Shootout Championship)
1994 - Duke 69-60 (Krzyzewski, Keady)
(NCAA Tournament - Southeast Regional Final)
1981 - Purdue 81-69 (Keady, Krzyzewski)
(NIT quarterfinals)
1980 - Purdue 68-60 (Rose, Foster)
(NCAA Tournament Mideast Regional Final)
1972 - Purdue 82-77 (Schaus, Waters)
(Las Vegas Classic)