Duncan scored a power-play goal against the Detroit Red Wings in the 2009 NHL Winter Classic at Wrigley Field.
Duncan’s 26:35 of ice time per game was second highest in the league in 2009–10.
In 2010, Duncan joined past Blackhawks Pierre Pilote, Doug Wilson and Chris Chelios as Norris Trophy winners.
On October 22, 2010, Duncan tallied his 200th NHL career point.
Duncan was one of 16 former Norfolk Admirals on the Blackhawks’ roster when they won the Stanley Cup in 2010.
When the Indianapolis
Colts and Giants played in 2006, it marked the first time brothers started
against each other at quarterback in an NFL game,
Duncan was voted by the fans as one of the starting defensemen in the 2011 NHL All-Star game. He collected his second career All-Star point for Team Lidstrom.
Duncan lists his parents as the people he most admires.
At a ceremony at the White House to recognize Chicago’s Stanley Cup championship, Duncan was singled out for praise by President Barak Obama for his devotion and duty after losing seven teeth.