Format
Each year, eight invited notable players have competed in this single elimination event.
Every match has two sets, both of them are race-to-7. To win, a player has to win both. If there's an exchange, then the players will go into a single rack decider to determine a winner.
If a player fails to pocket a ball, the other player shall be awarded ball-in-hand. To prevent this from occurring, the player at the table must call a safety. Each player can only call a safety once per rack.
The seven-ball had to be called before being pocketed. Failing to call it or calling a pocket other than where it really went would result of the seven-ball being re-spotted and player at the table loses his turn. Also, winning by pocketing the seven-ball wasn't permitted.
Read more about this topic: Sudden Death Seven-ball