The National Football League (NFL) is a professional American football league composed of 32 teams divided equally between the National Football Conference (NFC) and the American Football Conference (AFC). The highest level of professional football in the world,[4] the NFL runs a 17-week regular season from the week after Labor Day to the week after Christmas, with each team playing sixteen games and having one bye week. Out of the league's 32 teams, six (four division winners and two wild-card teams) from each conference compete in the NFL playoffs, a single-elimination tournament culminating in the Super Bowl, played between the champions of the NFC and AFC.