The biggest rugby tournament is the Rugby World Cup  which happens every 4 years and hosts 20 different countries with the 20 best teams in the world. These games are played in professional rugby stadiums in front of crowds of around 50,000. It is divisional based format followed by a single elimination playoffs to decide the winner.

Surprisingly the sport is dominated by the Oceanic and South African regions with 8 of the 9 World Cup wins coming from countries such as New Zealand and South Africa.