Whois & Analysis for spotrac.com

The National Basketball Association (NBA) is the major men's professional basketball league in North America, and is widely considered to be the premier men's professional basketball league in the world.

It has 30 teams (29 in the United States and 1 in Canada), and is an active member of USA Basketball (USAB), which is recognized by FIBA (also known as the International Basketball Federation) as the national governing body for basketball in the United States.

The NBA is one of the four major professional sports leagues in the United States and Canada.

NBA players are the world's best paid athletes by average annual salary per player.

The Premier League is an English professional league for men's association football clubs.

At the top of the English football league system, it is the country's primary football competition.

Contested by 20 clubs, it operates on a system of promotion and relegation with the English Football League (EFL; known as "The Football League" before 2016–17).

Welsh clubs that compete in the English football league system can also qualify.

The National Hockey League (NHL) is a professional ice hockey league currently composed of 30 teams – 23 in the United States and 7 in Canada – with a 31st team in Las Vegas scheduled to begin play in the 2017–18 season.

Headquartered in New York City, the NHL is considered to be the premier professional ice hockey league in the world, and one of the major professional sports leagues in the United States and Canada.

The Stanley Cup, the oldest professional sports trophy in North America, is awarded annually to the league playoff champion at the end of each season.

The National Football League (NFL) is a professional American football league consisting of 32 teams, divided equally between the National Football Conference (NFC) and the American Football Conference (AFC).

The NFL is one of the four major professional sports leagues in North America, and the highest professional level of American football in the world.

The NFL's 17-week regular season runs from the week after Labor Day to the week after Christmas, with each team playing 16 games and having one bye week.

Following the conclusion of the regular season, six teams from each conference (four division winners and two wild card teams) advance to the playoffs, a single-elimination tournament culminating in the Super Bowl, which is usually held in the first Sunday in February, and is played between the champions of the NFC and AFC.

Major League Soccer (MLS) is a men's professional soccer league, sanctioned by U.S. Soccer, that represents the sport's highest level in both the United States and Canada.

MLS constitutes one of the major professional sports leagues of the United States and Canada.

The league comprises 22 teams—19 in the U.S. and 3 in Canada.

The MLS regular season runs from March to October, with each team playing 34 games; the team with the best record is awarded the Supporters' Shield.

The postseason includes twelve teams competing in the MLS Cup Playoffs through November and December, culminating in the championship game, the MLS Cup.

MLS teams also play in other domestic competitions against teams from other divisions in the U.S. Open Cup and in the Canadian Championship.

MLS teams also compete against continental rivals in the CONCACAF Champions League.