NCAA Men's Basketball Tournament Bracket

It feels like every year, I fill out a NCAA bracket and pick Duke to win. How many times has Duke won the national title?

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Not as often as I'd like, per Duke Blue Devils men's basketball - National_championships

Final Four history

1963–Third Place	1964–Finalist	1966–Third Place	1978–Finalist
1986–Finalist	1988–Semifinalist	1989–Semifinalist	1990–Finalist
1991–Champion	1992–Champion	1994–Finalist	1999–Finalist
2001–Champion	2004–Semifinalist	2010–Champion	2015–Champion