A detailed guide of how to Join League of Legends Tournament.
After loading into the Main Lobby, hover your mouse over the Play button in the top-left corner of the screen, and left-click on it to view the other options
Hover your mouse over the tiny Trophy icon on the top-right corner of the screen, and click on it to bring up the Tournament Match Join screen.
Enter your Join (Participant) code in the text field on the screen, and hit Join.
