The NHL Heritage Classic is one of the series of regular season outdoor games played in the National Hockey League (NHL). Unlike the NHL's other two series of outdoor games, the NHL Winter Classic and the NHL Stadium Series, the Heritage Classic has been held infrequently: to date, only four games have been played in the series, and the match-ups have been exclusively between Canadian teams. The inaugural Heritage Classic, hosted by Edmonton at Commonwealth Stadium in 2003, was the first outdoor regular season game in NHL history and its success served as the precursor to outdoor hockey games played around the world. The second, hosted by Calgary in 2011, set sponsorship and revenue records. The third was hosted in Vancouver's BC Place stadium in 2014. The fourth game was hosted by Winnipeg at Investors Group Field in October 2016.