The 2015 NHL Winter Classic was an outdoor regular season National Hockey League (NHL) game, part of the Winter Classic series, played on January 1, 2015, at Nationals Park in Washington, D.C. The game, the seventh Winter Classic, matched the Chicago Blackhawks against the Washington Capitals. The Capitals were victorious with a final score of 3–2 after right winger, Troy Brouwer, scored the go-ahead goal with less than 13 seconds remaining in regulation play. This marked the first time in Winter Classic history that the home team won in regulation, the 2010 Winter Classic was the first one to be won by the home team which came in overtime. The game garnered an attendance of 42,832, and was televised nationally in the United States on NBC and in Canada on CBC.
On June 20, 2014, nine months after the Capitals were named as hosts, the media reported they would play the Chicago Blackhawks, although the NHL did not immediately confirm the reports until they announced the 2014–15 regular season schedule two days later. This marked the second Winter Classic appearance for both the Capitals and the Blackhawks. In the 2009 Winter Classic, the Blackhawks lost to the Detroit Red Wings 4–6. In the 2011 Winter Classic, the Capitals defeated the Pittsburgh Penguins 3–1.
Chicago's jerseys were based on their 1957 jerseys, white with red and black striping on the bottom, lace-up collars and the tomahawk logo near the elbows. Washington's jerseys represented a combined look back at hockey in D.C.: red sweaters (in a darker shade of red than the team's normal uniforms) with white stripes atop the shoulders and along the bottom, the front featuring the team's name in white over a large blue 'W', with the center of the 'W' stylized like the Washington Monument. Images of Washington's new logo and uniforms were published by Russian Machine Never Breaks before the official unveiling by the team.
The Capitals built a 2–0 lead in the first period off of goals by Eric Fehr and Alexander Ovechkin. The Blackhawks then scored goals by Patrick Sharp and Brandon Saad to tie the game in the second period. In the waning minutes of the third period with Washington on the power play, Ovechkin was slashed by Saad, and as the referee was signaling for the delayed penalty, Troy Brouwer picked up the loose puck that Ovechkin had lost and beat Corey Crawford for the game winning goal with 13 seconds left in the game.
The 2015 NHL Winter Classic was the second least watched Winter Classic to date, and was the least-watched one until 2016. NBC reported a 2.3 overnight rating and 3.47 million viewers. CBC barely crossed the 1 million viewer line.