The Rugby Championship is an annual international rugby union competition featuring four teams: Australia, New Zealand, South Africa, and Argentina. It was established in 2012, replacing the Tri Nations tournament, and is held in the Southern Hemisphere. The teams compete in a round-robin format, with each team playing the others once. The tournament typically takes place from August to October, culminating in a champion based on points accumulated throughout the matches. The Rugby Championship is known for its high level of competition and showcases some of the best rugby talent in the world, making it a significant event in the rugby calendar.